Gear Casings Patents (Class 74/606R)
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Patent number: 5902208Abstract: In a dual cavity toroidal type continuously variable transmission comprises, inward projections integral with a transmission case are positioned between two output discs and formed with threaded bolt holes directed toward an open end of the transmission case. An output gear housing is coaxially installed in the transmission case and secured to the inward projections by means of bolts which are screwed into the threaded bolt holes. The threaded bolt holes are arranged on a first imaginary circle which is coaxial with a second imaginary circle described by an outer periphery of the output discs. The first imaginary circle is greater than the second imaginary circle in diameter.Type: GrantFiled: May 22, 1997Date of Patent: May 11, 1999Assignee: Nissan Motor Co., Ltd.Inventor: Masaki Nakano
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Patent number: 5901606Abstract: A transmission housing (100)used as a body frame extending longitudinally of a tractor. The transmission housing (100) includes a first housing (1) having a front end connected to an engine housing (91), and a rear end; a first partition (1a) defining a first accommodation chamber (3) in the first housing (1) with the front end of the first housing; a second partition (1b) defining, in the first housing (1), a second accommodation chamber (4) with the first partition (1a), and a third accommodation chamber (5) with the rear end of the first housing; and a second housing (2) having a front end connected to the rear end of the first housing, and a rear end, and defining a rear accommodation chamber (6) between with the front end and the rear end. A main clutch (7) is disposed in the first accommodation chamber (3). A shuttle change speed device (8) and a main change speed device (9) are arranged longitudinally in the second accommodation chamber (4).Type: GrantFiled: June 16, 1997Date of Patent: May 11, 1999Assignee: Kubota CorporationInventors: Tomeo Umemoto, Masatoshi Iwamoto
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Patent number: 5894907Abstract: A drive system for a grounds care device using two identical final drives in combination with two identical power units to provide directional drive to the wheels.The final drives and power units are assembled to each other differently for use on each side to provide the required relative reverse rotation of each drive wheel while maintaining the same direction of control movement for forward (or reverse) movement of each drive wheel (in regards to machine movement).Additionally, the drive belt for the cutting unit is routed between the power units (rather than under or over) to allow a lower center of gravity for increased stability.Type: GrantFiled: July 12, 1996Date of Patent: April 20, 1999Assignee: MTD Products Inc.Inventor: Tim Peter
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Patent number: 5894761Abstract: An industrial robot wrist unit comprising a wrist housing capable of being detachably mounted to the distal end of a robot arm, the housing having two fork arms supporting a pivotally mounted tilt housing which supports a rotatably mounted turntable on which an external implement can be mounted. The tilt housing is positively confined between the fork arms so that reactive forces stemming from the gearings in the housing are prevented from forcing the fork arms apart.Type: GrantFiled: July 24, 1997Date of Patent: April 20, 1999Assignee: Asea Brown Boveri ABInventors: Stefan Danielsson, Jan Gepertz, Jan Larsson
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Patent number: 5878631Abstract: A wiper device has a tubular plate and a wiper drive mounted on the tubular plate and having a drive shaft guided in a bearing support. The wiper drive with the bearing support is inserted in a tubular element arranged on the tubular plate.Type: GrantFiled: February 21, 1997Date of Patent: March 9, 1999Assignee: Robert Bosch GmbHInventors: Kurt Muehlpforte, Henk Becker, Claus Fleischer, Tino Boos
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Patent number: 5878632Abstract: The automatic transmission, which is intended for motor vehicles in particular, has an internal gear pump for supplying a hydrodynamic converter, a lubricating device and control and actuation devices of the automatic transmission, via a main pressure valve. An excess flow returns from the main pressure valve back to the internal gear pump via a feed channel (18). The feed channel (18) has a cross section which is steadily reduced in the direction toward the internal gear pump and has a feed nozzle (20) on its end facing the internal gear wheel pump. The feed channel (18) with its feed nozzle (20) terminates near the suction zone of the internal gear pump in a suction channel (14) connected with a reservoir. To simplify manufacture and to improve the function, the latter, in particular with a view to an advantageous charging of the internal gear pump, the feed channel (18) and the feed channel (20), are cast in the pump housing (1) by the lost-wax method.Type: GrantFiled: April 11, 1997Date of Patent: March 9, 1999Assignee: ZF Friedrichshafen AGInventors: Wolfgang Hubler, Gerhard Martin, Peter Tiesler
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Patent number: 5875690Abstract: A multistage angular reducer includes a casing, a drive shaft, a driven shaft connected to a user element, and a number of reduction stages housed inside the casing between the drive shaft and the driven shaft. At least one stage is defined by a pair of gears including a bevel pinion and a bevel ring gear. The casing may selectively house two or three reduction stages, while maintaining unchanged, when switching from two to three stages or vice versa, the mutual positions of the axis of the drive shaft and the axis of the driven shaft.Type: GrantFiled: March 7, 1997Date of Patent: March 2, 1999Assignee: Bonfiglioli Riduttori S.p.A.Inventors: Enzo Cognigni, Pietro Depietri
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Patent number: 5875683Abstract: The present invention provides an apparatus for locking a gear train in high and low gear modes. A printed circuit board has first, second and third conductive pads, each of which are in electrical communication with a main circuit. A conductive clip having first and second contact portions is in slidable contact with the conductive pads, and is adapted to shift between a high gear position and a low gear position in response to actuation by an actuator. The low gear position is defined when the first contact portion contacts the first conductive pad and the second contact portion contacts the second conductive pad, and the high gear position is defined when the first contact portion contacts the second conductive pad and the second contact portion contacts the third conductive pad. The actuator is adapted to actuate the clip into the respective high and low gear positions in response to a signal from the main circuit and to cease actuation when the clip is at the respective high and low gear positions.Type: GrantFiled: July 24, 1997Date of Patent: March 2, 1999Assignee: Suncon Toys Industry Co. Ltd.Inventors: Bill Yeung, Chan Yeung, Mak Tsz Fong, Li Man Chiu
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Patent number: 5873152Abstract: The needling machine includes a support and a stripper defining a path for a lap. A needle board supported by sliding rods has a reciprocating motion between the represented maximum penetration position and the withdrawal position by means of two rod-eccentric devices, each having a rod hinged to the sliding rod. Each pair of rods is hinged to a crankshaft supported by bearings and carrying an equilibration device. The bearings are supported in a crankcase by partitions in a position situated axially between the eccentrics and the equilibration device. The crankshaft extends from the crankcase through simple sealing liners. An advantage of the present needling machine is that the crankcase is stiffened and crankshaft deformations are reduced to increase the striking rate.Type: GrantFiled: August 11, 1997Date of Patent: February 23, 1999Assignee: AsselinInventors: Bernard Jourde, Pierre Mouchard, Didier LeBloas
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Patent number: 5873287Abstract: A transmission for self-propelled walking lawn mowers includes a casing, an input shaft inserted into an opening formed in the casing, an output shaft disposed perpendicular to the axis of the input shaft, a drive gear mounted on the input shaft, a drive gear mounted on the output shaft, a power transmission gear mechanism for transmitting drive power from the input shaft to the output shaft, and bearing structures for supporting the input shaft. The bearing structures include a lower supporting structure disposed adjacently below the lower end of the input shaft, and the lower supporting structure includes a supporting member which projects from the inner wall of the casing to a position adjacently below the lower end of the input shaft, wherein a lower-end face of the input shaft and an upper face of the supporting member are engaged to hold the input shaft at its horizontal position, thereby reducing the height of a lawn mower.Type: GrantFiled: February 11, 1997Date of Patent: February 23, 1999Assignee: Kanzaki Kokyukoki Mfg., Co., Ltd.Inventor: Hirohiko Kawada
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Patent number: 5865499Abstract: A camper crank drive mechanism provides for the powered operation of the top erecting and retracting mechanism of a camper vehicle having a folding top. The present mechanism secures to the camper structure, and has an output shaft which engages the conventional crank input of the camper vehicle. The crank drive mechanism comprises a gear speed reduction unit, which reduces the input speed and multiplies the input torque considerably, in order to allow a relatively small and lightweight battery operated power tool (cordless electric drill, power screwdriver, etc.) to be used to operate the reduction mechanism. The mechanical advantage provided by the mechanism allows it to serve as a mechanical lock of the top erection and retraction mechanism, precluding inadvertent collapse of the top during the intermediate phase of the erection or retraction operation.Type: GrantFiled: April 1, 1997Date of Patent: February 2, 1999Inventor: Norbert R. Keyser
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Patent number: 5857389Abstract: A universal mount housing construction for parallel offset gearboxes that includes a generally cubic-shaped cast housing member having an input opening in a first side for receiving a rotational power input, and an output opening in a second side for transmitting a rotational power output through a hollow or solid output shaft. Two plate-shaped housing extensions are integrated into the cast housing member and provide a pair of integrated torque arms. Each of the integrated housing extensions have a machined planar surface oriented perpendicular to the central axis of the output opening, and a through-bore extending through the machined surface. A raised ring surface extends around the output opening and has a machined planar surface which is coplanar with the machined planar surfaces of the integrated housing extensions. The raised ring surface has tapped holes spaced about its circumference for flange mounting.Type: GrantFiled: May 28, 1997Date of Patent: January 12, 1999Assignee: Sumitomo Machinery Corp. of AmericaInventors: Gerhard Antony, William M. Lechler
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Patent number: 5855148Abstract: An improved automatic transmission has a reverse gear piston which can be engaged as a transmission brake. The piston is movable in a first direction and has a surface. A hydraulic means supplies transmission fluid to a space between the surface and the housing to engage the piston and removes the hydraulic fluid from the space to disengage the piston thereby releasing the transmission brake. In one embodiment, the hydraulic means has a passageway with the first cross-sectional area through the housing and a second cross-sectional area larger than the first cross-sectional area in the housing that is exposed to the space thereby reducing friction between the fluid and the second cross-section which reduces the release time of the fluid from the space. In another embodiment, the transmission has a means for adjusting the cross-sectional area of the passageway through the housing.Type: GrantFiled: November 17, 1997Date of Patent: January 5, 1999Inventor: Dennis Reid
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Patent number: 5855140Abstract: A motor device having a hollow casing in which a mechanism for converting continuous rotational motion of a rotating member which is rotated by a motor into reciprocating oscillatory motion and reversibly rotates the output shaft in the forward rotational direction and in the reverse rotation direction. This motor device includes a gear wheel fixed to the output shaft. Furthermore, it includes a driving force conversion member comprising a meshing portion which is meshed with the gear wheel, which converts continuous rotational motion of the rotating member into oscillatory motion around the output shaft as a center for oscillation, and which reversibly rotates the gear wheel in the forward rotational direction and in the reverse rotational direction. It further includes a pair of holding members which support the meshing state of the gear wheel and the meshing portion of the driving force conversion member in the thickness direction, and which oscillate around the output shaft as a center for oscillation.Type: GrantFiled: February 12, 1997Date of Patent: January 5, 1999Assignee: ASMO Co. Ltd.Inventor: Takayuki Imamura
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Patent number: 5855139Abstract: A starter for cranking an engine is mounted within a heat conductive casing which surrounds a ring gear and a torque converter in such a manner that the starter is disposed radially inside the casing and directly contacts the inside surface of the casing. The casing insulates operational sound of the starter to enhance the quietness in a vehicle compartment. An air flow generated by the torque converter in the casing dissipates the heat from the starter to prevent excessive temperature rise of the starter. The heat generated in the starter is transferred outside through the direct contact between the starter and the casing, enhancing the heat-resisting characteristics of the starter.Type: GrantFiled: October 29, 1997Date of Patent: January 5, 1999Assignee: Nippondenso Co., Ltd.Inventors: Masanori Ohmi, Tsutomu Shiga
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Separate plate for a control valve used in an automatic transmission and method for fabricating same
Patent number: 5852957Abstract: A separate plate for a control valve used in an automatic transmission having an excellent sealing property is provided, independently of smoothness and rigidity of sealing surfaces. The separate plate comprises a metal plate and one or two sealing portions, each of which consists of a foam rubber layer 80 .mu.m to 500 .mu.m thick, formed on one or two surfaces thereof. Each of the one or two seal portions consists of a foam rubber layer reinforced with inorganic fiber, organic fiber or an unwoven cloth. Or it may has a two-layered structure consisting of a not yet foamed rubber layer 90 .mu.m to 300 .mu.m thick, whose rubber hardness defined by JIS SHORE A is 40 to 95, and a foam rubber layer 80 .mu.m to 200 .mu.m thick or a foam rubber layer 80 .mu.m to 200 .mu.m thick reinforced with inorganic fiber, organic fiber or an unwoven cloth.Type: GrantFiled: September 12, 1997Date of Patent: December 29, 1998Assignee: Nichias CorporationInventor: Hiroshi Saito -
Patent number: 5850762Abstract: A robot system with robot specific effects comprising multiblocks of nearly the same design, each surrounded with one closed chamber for the accommodation of driving units, basic gears, generator units, basic control electronic for basic units and integrated built-in equipment for overall robot control, combined with multiblocks composed of central chambers and thereof separated socket flange booster chambers. The central chambers, accomodating driving units, basic gears, generator units and basic control electronic for the basic units. The socket flange booster chambers, having nearly the same contour as the central chambers and integrate built-in equipment for overall robot control. The central chambers and the socket booster chambers, connecting the current and communication links between the central chambers and the socket flange booster chambers during the operation for plug in connection of the central chambers with the socket flange booster chambers.Type: GrantFiled: May 13, 1996Date of Patent: December 22, 1998Inventor: Uwe Kochanneck
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Patent number: 5845544Abstract: A control module assembly (200) for mounting as a unit to the housing (116) of a compound transmission (110). The module assembly includes a module housing (202) defining electric (207) and fluid (208) connectors and having an interior containing a position sensor (218) interacting with a transmission shift shaft (188), cavities (212 and 214) defining auxiliary section actuator piston cylinders (204B and 206B), solenoid control valves, a printed circuit board, and various interior electric and fluid conduits.Type: GrantFiled: July 15, 1996Date of Patent: December 8, 1998Assignee: Eaton CorporationInventors: Michael J. Huggins, David L. Wadas, Alan C. Stine, Joseph D. Reynolds
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Patent number: 5847481Abstract: A vehicle transmission system comprising a gear box having an outlet shaft which drives a universal joint associated with an eddy current electrical retarder having an annular inductor stator cantilevered-out from the case of the gear box together with a rotor constituting a magnetic core and which includes two wheels on either side of the stator. The wheels are fixed to two ends of an intermediate tube surrounding the universal joint, one of its ends also being fixed to a slab that is secured to the outlet from the gear box.Type: GrantFiled: February 12, 1997Date of Patent: December 8, 1998Assignee: Labavia SGEInventor: Guy Rugraff
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Patent number: 5845545Abstract: A tamper-resistant technique for retaining the cover of an electronically controlled air pressure piston operated automatic overdrive shifter employed on the auxiliary section of a change-speed transmission for heavy on-highway truck. In one embodiment a spring loaded slider tracks movement of the piston to cam a locking pin into engagement with a blind bolt to prevent removal of the cover when the piston is not in the overdrive position thereby requiring test equipment to operate the controller for cover removal. In another embodiment, the cover mounting has portions frangibly removable upon installation with press-in discs covering the bolts thereafter to deter removal. In another embodiment, a blind recessed roll pin is driven through slots in the bolt head to deter removal.Type: GrantFiled: November 13, 1997Date of Patent: December 8, 1998Assignee: Eaton CorporationInventors: Eugene R. Braun, William R. Pankratz
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Patent number: 5842377Abstract: A mixer gearbox assembly for driving a mixer shaft capable of receiving either a complete electric drive motor on a first face of the gearbox housing for operatively coupling with a first end of a long cross-shaft in the housing, or alternatively a partial electric drive motor on a second face of the gearbox housing for operatively coupling with an opposite end of the cross-shaft. In an alternative configuration for use with only a partial motor, an assembly containing otherwise identical components is provided with a short cross-shaft replacing the long cross-shaft, which short shaft is supported by a single bearing and is colinearly matable only at the outer end thereof with the drive shaft of a partial electric motor. The rotor and short shaft act as a unitary structure when assembled.Type: GrantFiled: November 7, 1996Date of Patent: December 1, 1998Assignee: General Signal CorporationInventors: William J. Hutchings, Stephen L. Markle, David J. Engel, Joel S. Berg, Marlin D. Schutte
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Patent number: 5839320Abstract: Disclosed is an actuator, comprising a casing prepared by integrally bonding a first case member and a second case member which are separated from each other in an axial direction of the casing, bracket holding portions formed to provide a pair on the inner surfaces of the first and second case members, a motor having a mounting bracket and housed in the casing with the mounting bracket held by the bracket holding portions, a worm gear mounted to a rotary shaft of the motor, and an operating section including a worm wheel which is rotated in mesh with the worm gear so as to impart a predetermined driving force to an adjustment section of an apparatus to be controlled, wherein the bracket holding portion of the first case member includes a groove formed along an inner peripheral portion of the holding portion for receiving one peripheral portion of the mounting bracket of the motor, and the bracket holding portion of the second case member includes a pushing portion formed along an inner peripheral portion ofType: GrantFiled: December 9, 1996Date of Patent: November 24, 1998Assignee: Harada Industry Co., Ltd.Inventor: Hiroshi Komachi
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Patent number: 5836076Abstract: A method for assembling a double enveloping speed reducer assembly includes predetermining the thickness of the shims required to properly position a worm assembly and a worm gear assembly in the speed reducer such that the double enveloping worm spiral and the worm gear mesh at their centers of curvature. By predetermining the thickness of the shims, the speed reducer can be assembled without guesswork. The shim thicknesses are determined, in part, by determining the distance the center of curvature of both the worm spiral and the worm gear to preselected surfaces of the worm assembly and worm gear assembly. The method also includes placing the speed reducer housing and at least one of the bearing brackets for both the worm assembly and the worm gear assembly in gauges to determine various dimensions of the housing and brackets. The measured dimensions are then used to calculate the appropriate shim thicknesses, the shims are placed adjacent a surface of the brackets, and the speed reducer is assembled.Type: GrantFiled: November 7, 1996Date of Patent: November 17, 1998Assignee: Emerson Electric Co.Inventors: Oprea Duta, Randy R. Prom
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Patent number: 5836219Abstract: In a motor-gear drive unit, particularly for automobile window lifters and the like, a moisture-tight closure of the gear case (2) is provided by a gear case cover (4). The cover (4) is preferably injection-molded from plastic and can be connected to the gear case (2) nonpositively by a press-fitted, insertable clamp fastening. Specifically, the clamp fastening takes the form of a peripheral web (4.1) capable of being pressed into a peripheral channel-like groove (2.2), where the peripheral web (4.1) and the peripheral channel-like groove (2.2) are provided, respectively, on either the case (2) or the cover (4). If the peripheral web (4.1) is provided on the cover (4), a peripheral scraping rib (4.11) is molded on the inside surface of the web (4.1). An elastic gasket layer (5) having a static sealing edge (5.1) is applied, e.g., injection-molded onto an outer surface of the peripheral web (4.1).Type: GrantFiled: August 23, 1996Date of Patent: November 17, 1998Assignee: Siemens AktiengesellshcaftInventors: Peter Klingler, Thomas Luckas
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Patent number: 5832789Abstract: A motor casing containing a motor has an end wall with bosses and bolt receiving holes positioned radially inward relative to a stator mounted in a circumferential wall of the motor casing. A gear unit with a gear casing includes bosses and bolt holes on its periphery mating with bosses and bolt receiving holes of the motor casing to thus enable a substantial reduction in size and weight of the gear casing.Type: GrantFiled: December 26, 1996Date of Patent: November 10, 1998Assignee: Aisin AW Co., Ltd.Inventors: Yoshio Kinto, Masahiro Hasebe
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Patent number: 5834662Abstract: The present invention relates to an arrangement for the rotary actuation of an apparatus, for example of a crane, on a chassis or a foundation wherein a worm gear (1) and a housing (2) are secured on the foundation, a worm (3) is rotationally displaceable manually, or by a drive motor, and a worm wheel (4) is rotationally mounted to the housing (2). The worm wheel (4) is provided at both sides (6a, 6b) of its gearing (6) with a separate rolling bearing (10, 11, 12). Advantageously, housing (2) is formed with a base part (2a) and a cover part (2b) which can be flatly fixed on top of the base part (2a), and at least one end side of the worm wheel comprises a connection attachment which intersperses the base and/or the cover part.Type: GrantFiled: October 17, 1996Date of Patent: November 10, 1998Assignee: IMO-Industrie-Momentenlager Stoll & Russ GmbHInventors: Klaus Stoll, Erich Russ
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Patent number: 5829560Abstract: A hydraulic control has a valve body assembly in which a plurality of control valves are contained. The valve body has separate structures which are secured together by fasteners. Separator plates are positioned between the structure levels to establish flow passages and sealing elements between fluid passages in the separate structures. The separator plate has two conical valve seats formed therein which cooperate with two pintle valves to control the flow of hydraulic fluid to and from a ratio controller within a power transmissions.Type: GrantFiled: May 15, 1997Date of Patent: November 3, 1998Assignee: General Motors CorporationInventors: James Kevin Mainquist, Tracey Lynn Myers, David Allen Blenc
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Patent number: 5823054Abstract: A movement actuator includes first and second modules that are constructed to fit together in different manners. The first module includes first and second actuator parts mounted for rotation relative to one another, a gear wheel rotatable arranged in the second actuator part, and a transmission system including a coupler coupled to the gear wheel and a worm wheel. The second module includes a motor housing and an electromotor mounted in the housing and having a drive shaft having mounted thereon a worm. When the two modules are coupled together, in any of the different manners, the worm engages the worm wheel, thereby coupling the electromotor through the transmission system and gear wheel to the actuator parts. As a result, the electromotor is operable to rotate the actuator parts relative to each other.Type: GrantFiled: November 12, 1995Date of Patent: October 20, 1998Assignee: IKU Holding Montfoort B.V.Inventor: Stefan Frits Brouwer
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Patent number: 5823907Abstract: A differential apparatus includes a differential casing, a pair of output side gears, a pair of output shafts connected to the output side gears, four pairs of long and short accommodating bores formed in the differential casing and long and short pinion gears accommodated in the accommodating bores. In arrangement, these pairs of accommodating bores are divided equally in the circumferential direction of the differential casing. The output shafts are prevented from slipping out of the differential casing by C-shaped clips. These accommodating bores are arranged so that, between two neighboring pairs of accommodating bores in the circumferential direction, the short accommodating bore in the one pair adjoins the short accommodating bore of the other pair. The differential casing is provided with an elongated hole which substantially bridges the adjoining short accommodating bores.Type: GrantFiled: May 29, 1997Date of Patent: October 20, 1998Assignee: Tochigi Fuji Sangyo Kabushiki KaishaInventors: Masao Teraoka, Takayuki Wakaizumi, John J. Schoeberle
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Patent number: 5823070Abstract: An automatic transmission includes a casing housing a transmission mechanism and having a wall with a through-hole. A first plurality of electronic components is mounted exterior to the casing and a second plurality of electronic components is mounted on the interior of the casing. A sealed wire terminal is mounted in and closes the through-hole 21. An electronic control unit is mounted in the sealed wire terminal 22 and cables electrically connect the electronic control unit to the first and second pluralities of electronic components. The sealed wire terminal includes a seal member supporting the cables and sealing the through-hole. Thus, the automatic transmission and the electronic control unit can be combined before mounting on a vehicle.Type: GrantFiled: October 4, 1996Date of Patent: October 20, 1998Assignee: Aisin Aw Co., Ltd.Inventors: Takao Taniguchi, Nobuaki Miki, Takenori Kano, Toshiya Morishita, Naoto Ogasawara, Naotaka Murakami, Ken Kiyama
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Patent number: 5823071Abstract: An integrated solenoid circuit system for a motor vehicle transmission, and a method of forming the same. The system comprises a housing including a solenoid subhousing and a transmission range sensor (TRS) subhousing. The system also includes a solenoid sensor operatively located in the solenoid subhousing for sensing activation of transmission solenoids. The plurality of transmission sensors is operatively positioned in the transmission range sensor subhousing for communicating transmission states sensed by the solenoid sensor to the controller. A manifold is operatively mounted in the solenoid subhousing for energizing system components. A transmission sensor circuit operatively connects a plurality of transmission sensors to the manifold for selectively activating each of the plurality of transmission sensors in response to a sensed transmission state. The system integrates the transmission sensors, the manifold and the transmission sensor circuit into a single piece construction.Type: GrantFiled: October 31, 1996Date of Patent: October 20, 1998Assignee: Borg-Warner Automotive, Inc.Inventors: Gregg W. Petrosky, Brian C. Fagan
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Patent number: 5816116Abstract: A universal mount housing construction for right angle gearboxes and gearmotors that allows a wide variety of mounting and torque support configurations. The housing includes a generally cubic-shaped cast housing body having an input opening in a first side for receiving a rotational power input, and an output opening in at least one second side for transmitting a rotational power output through a hollow or solid output shaft. Four plate-shaped housing extensions are integrated into the cast housing member and provide two pairs of integrated torque arms. Each of the integrated housing extensions have a machined planar surface which is oriented perpendicular to the central axis of the output opening and coextensive with a raised, machined surface extending around the output opening. A through-bore extends through each of the plate-shaped housing extensions. The raised ring surface has tapped holes spaced about its circumference for flange mounting.Type: GrantFiled: May 28, 1997Date of Patent: October 6, 1998Assignee: Sumitomo Machinery Corp. of AmericaInventors: Gerhard Antony, William M. Lechler, Arthur Pantelides
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Patent number: 5810508Abstract: A boat lift motor and drive assembly includes a rigid mounting plate supporting a boat lift motor, a drive shaft thereof carrying a drive pulley, a pulley belt entrained about the drive pulley and a driven pulley, the driven pulley being connected to a shaft of a worm gear, the worm gear being in mesh with a drive gear, and the drive gear being connected to an output shaft which is in turn connected to a reel having wound thereon a boat lift cable which is connected to a boat platform for lifting and lowering a boat resting thereon. The lift motor and drive assembly as covered by a housing defined by first and second housing bodies with a first of the housing bodies including a recess for receiving the driven pulley and accommodating the same and also including a frusto-conical wall defining a protective shroud for the winding reel shaft.Type: GrantFiled: July 15, 1996Date of Patent: September 22, 1998Assignee: Norfolk Fabrication, Inc.Inventors: Lynn P. Norfolk, David Charles Peterson, Jr., Ronald Price Ranere, Russell V. Welton
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Patent number: 5809845Abstract: A housing for an axle driving apparatus which is partitioned therein through an inner wall into a first chamber for housing therein a hydrostatic transmission and a second chamber for housing therein a drive train for transmitting power outputted from the hydrostatic transmission to axles. An oil filter is disposed between the first chamber and the second chamber. The first chamber and the second chamber are filled with oil which can flow between the first chamber and the second chamber through an oil filter, whereby the volume of oil, which varies as the temperature of the oil in the first chamber rises or lowers, can be adjusted.Type: GrantFiled: October 15, 1996Date of Patent: September 22, 1998Assignee: Kanzaki Kokyukoki Mfg. Co., Ltd.Inventor: Hiroaki Shimizu
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Patent number: 5807200Abstract: A transaxle drive differential assembly powered by an input drive and connected to a pair of axle shafts. The differential assembly includes a housing comprised of a first housing section and a second housing section wherein at least one of the housing sections has a bearing surface. A ring gear, drivingly linked to the input drive, has an inner circumference which is supported on the bearing surface. A differential is drivingly linked to the ring gear and is adapted to drive the pair of axle shafts.Type: GrantFiled: August 23, 1996Date of Patent: September 15, 1998Assignee: Hydro-Gear Limited PartnershipInventor: Raymond Hauser
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Patent number: 5802913Abstract: A casement and awning window operator consisting of four parts, a top cover, a base, a worm gear receivable in a pocket on the base and top and a geared actuating arm engaging the worm gear having an integral arm extending out of the operator. The cover is secured to the base by an adhesive applied to matching surfaces of the cover and base trapping the worm gear therein. The cover and base are made from two plastic halves in a generally horizontal parting plane thus presenting a large adhesive contact area in a plane putting the contact surfaces in shear and allowing insertion of the gear and arm prior to assembly. The cover and base may have molded parts providing a spring-like effect to control the friction of the operator to prevent it from rotating out of a set position.Type: GrantFiled: May 19, 1997Date of Patent: September 8, 1998Inventor: Kurt W. Winner
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Patent number: 5802931Abstract: An axle driving apparatus having a common housing of at least two separable pieces for a hydrostatic transmission comletely contained within the housing. A pair of oppositely-extending differentially-connected axles extend from the housing. The housing pieces are separable at a horizontal parting plane.Type: GrantFiled: February 1, 1996Date of Patent: September 8, 1998Assignee: Sauer Inc.Inventor: Joseph E. Louis
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Patent number: 5799548Abstract: A gearbox (1) is formed by two steel plates (3,5) which support molded elements (such as 13b and combined 35e, 33e). A separate molding operation is performed on each plate, in which a plurality of individual molded parts are molded. The precise positioning is from the mold, not the plate. The liquid plastic is bound to the plate by entering a plurality of holes (such as 66 and 66a) for each part. The plates are then populated and then held together by screws (72a-72d). A bevel gear (31) is mounted on the outside by molded supports (29a, 29b) and by contact with gear (36) with which it meshes.Type: GrantFiled: July 22, 1996Date of Patent: September 1, 1998Assignee: Lexmark International, Inc.Inventors: Henry Marshall Brooks, Daniel George Mlejnek, Harald Portig, Richard Andrew Seman, Jr.
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Patent number: 5800126Abstract: A swinging head gear shell for an electric fan is provided and includes a body and a cover respectively molded from reinforced engineering plastics. The body has a mounting plate for mounting with screws, a first open top chamber and a second open top chamber linked in parallel and adapted for receiving a swinging head gear. The body has a plurality of screw holes for the mounting of the cover, and a vertical locating barrel through which one gear shaft of the swinging head gear passes. The mounting plate has a circular through hole through which the worm of the swinging head gear passes. The cover overlays the body to close the first open top chamber and the second open top chamber, and has a plurality of mounting holes respectively fastened to the top screw holes of the body by screws. The cover has a raised portion, and a through hole formed in the raised portion in communication with the second open top chamber for the control lever of the swinging head gear to pass.Type: GrantFiled: December 9, 1996Date of Patent: September 1, 1998Inventor: Ching-Lang Tsai
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Patent number: 5794476Abstract: A flexible gear support for a PTO gear box for an internal combustion engine is a relatively inexpensive unitary structure comprising two concentrically spaced rings which are engaged together by a flexible web extending therebetween. The gear support replaces very expensive ball bearings of precise tolerance which support a main input gear of the PTO unit during assembly and testing thereof. Further, a ring shipping spacer may be used with the gear support, if desired, to accommodate any shock loads during shipping and handling should the particular gear support be of a spring rate insufficient to accommodate such shocks.Type: GrantFiled: October 23, 1996Date of Patent: August 18, 1998Assignee: Navistar International Transportation Corp.Inventor: Richard A. Smietanski
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Patent number: 5791205Abstract: An improved differential case is provided that resists rotation between the two differential case halves. Spline teeth extend from each of the mating faces of the two differential case halves into grooves in the other. The spline teeth and grooves prevent relative rotation. A method of making the differential case halves is also disclosed.Type: GrantFiled: August 9, 1996Date of Patent: August 11, 1998Assignee: Meritor Heavy Vehicle Systems, LLCInventor: Malcolm F. Ruppert, Jr.
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Patent number: 5791191Abstract: In a gear which can be flanged onto an electric motor, especially a low-clearance planetary gear, with a hollow shaft to make a positive connection with the electric motor output shaft, an easily manufactured and reliable centering system is to be provided between the gear and the electric motor (6). To this end, the section of the hollow shaft (9) accepting the output shaft (10) of the electric motor is centrically secured on roller bearings (11) and the face of the drive flange is radially freely centerable (7, 8) in relation to the mating surface of the electric motor. To enable a drive with as uniform a basic structure as possible to be connected to electric motors with different connecting geometries, the gear has an interchangeable mating plate (2) forming its connecting flange and a hollow shaft into which compensating sleeves (12) can be inserted to accept electric motor output shafts of different diameters.Type: GrantFiled: June 21, 1996Date of Patent: August 11, 1998Assignee: Alpha Getriebebau GmbHInventors: Manfred Wittenstein, Manfred Wolfart
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Patent number: 5791204Abstract: A position detecting device includes a ring gear that is disposed on an outer side of an output shaft of a motor and rotates with the rotation of the output shaft, fixed contact terminals fixed to a cover plate, and a rotary contact terminal provided on a ring gear. As the ring gear rotates, the fixed contact terminals and the rotary contact terminal are brought into contact with each other, thereby detecting a rotational position of the output shaft. The position detecting device further includes a clutch mechanism for preventing the rotation of the ring gear by more than a predetermined degree while permitting the rotation of the output shaft of the motor in the state of contact. Hence, even if the output shaft of the motor is rotated sufficiently, this state of contact is maintained.Type: GrantFiled: January 26, 1996Date of Patent: August 11, 1998Assignee: Asmo Co., Ltd.Inventors: Katsuhiko Torii, Kengo Yamamura, Mitsuhiro Ikeya
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Patent number: 5782142Abstract: An axle driving apparatus having a shaft sealing device to provide for compact and flexible packaging. The shaft sealing device includes an oil seal and a seal carrier for supporting the oil seal. The shaft sealing device can be used to provide a reliable fluid-tight seal for the axles and other shafts, thereby allowing the axles and other shafts to be located in different planes, and offset from the plane of the casing junction surface. The shaft sealing device may alternatively be configured as an integral unit that includes a shaft support.Type: GrantFiled: April 12, 1996Date of Patent: July 21, 1998Assignees: Tuff Torq Corporation, Kanzaki Kokyukoki Mfg. Co.Inventors: Robert Abend, Hiroaki Shimizu, Norihiro Ishii
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Patent number: 5782141Abstract: A self closing valve for use with an engine that prevents the loss of fluid from a transmission connected to the engine when a magnetic chip detector is removed from the transmission housing. The self closing valve and magnetic chip detector being integrated together to form a magnetic chip detection system that provides an indicating signal to the operator of an aircraft when magnetically attractable debris is detected in the transmission. The self closing valve includes a pair of valve doors that rotate about a pivot point so as to be moveable from a central region of a passageway within the transmission housing. Further, the valve does not extend substantially into the interior of the mechanical housing but is closeable to prevent loss of fluid from the interior of the mechanical housing when the magnetic chip detector is withdrawn from the passageway.Type: GrantFiled: March 6, 1995Date of Patent: July 21, 1998Assignee: Allison Engine CompanyInventor: Ronald J. Schoolcraft
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Patent number: 5775177Abstract: A cover body formed with AC2B is fixed to a casing of an automatic transmission and has a hole in the shaft center thereof. The cover body is subjected over the surface of the hole to a solution heat treatment at 500 centigrade degree for 3 hours and is tempered at 180 centigrade degree fo 4 hours to acquire hardness of 90 HB of more. An iron stator shaft for supporting a stator of a torque converter is pressed into the hole in the cover body.Since the plastic deformation of the hole part of the cover body is reduced, the interference between the stator shaft and the cover body is ensured, and the stator shaft is prevented from being displaced axially even at a high temperature.Type: GrantFiled: April 3, 1996Date of Patent: July 7, 1998Assignee: Jatco CorporationInventor: Yoichi Ikeda
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Patent number: 5771758Abstract: An axle driving apparatus is provided an includes a main casing, a cap plate coupled to the main casing along a first split line where the first split line is substantially disposed in a horizontal plane, and an axle cap coupled to the main casing along a second split line where the second split line is substantially disposed in a vertical plane. A center section is supported solely by the main casing and has connected thereto a hydraulic pump and a hydraulic motor where the center section is disposed offset from both the first split line and the second split line. A pump shaft is linked to the hydraulic pump and is supported by the main casing where the pump shaft has an axis disposed perpendicular to the horizontal plane and parallel to and offset from the vertical plane. A motor shaft is linked to the hydraulic motor and has an axis parallel to and offset from the horizontal plane and perpendicular to the vertical plane.Type: GrantFiled: March 19, 1997Date of Patent: June 30, 1998Assignee: Hydro-Gear Limited PartnershipInventor: Ray Hauser
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Patent number: 5768953Abstract: The present invention is directed to methods and systems for improving the operation of a transmission for an automotive vehicle, and in particular the transmission as installed by the original automobile manufacturer. The methods and systems of the present invention modify the original hydraulic fluid circuits of the automotive transmission provided by the automobile manufacturer to enable the transmission to manually select any available ratio at any time, to select first gear at any time, and to enable the transmission to produce quick applies during upshifts and fast releases during downshifts for improved performance and heavy duty use with only minimum ratio sharing or overlap during gear changes.Type: GrantFiled: August 28, 1996Date of Patent: June 23, 1998Inventor: Gilbert W. Younger
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Patent number: 5768941Abstract: A motorized reduction gear unit for any purpose having a crank and connecting rod mechanism incorporated in it, but especially for use as a vehicle screen wiper drive unit, comprises a hollow casing having a cover plate, with, within the hollow interior of the casing, a toothed wheel which is rotatable about an axis. The toothed wheel carries a gudgeon pin parallel to the axis of rotation of the toothed wheel but eccentric with respect to the latter. The pin drives a crank and connecting rod system in which the crank and connecting rod are articulated together about a pivot pin, so that continuous rotary motion of the toothed wheel is converted thereby into alternating rotary motion of an output shaft. It further includes a peripheral gasket disposed between the upper edge of the casing and the cover plate, together with a friction plate element in the form of a thickened friction portion disposed fixedly on the inner surface of the cover plate facing towards the casing.Type: GrantFiled: June 5, 1995Date of Patent: June 23, 1998Assignee: Valeo Systemes D'EssuyageInventors: Pierre Blanchet, Stephane Hommelet
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Patent number: 5768952Abstract: An automatic transmission has a reduced axial dimension and includes a mission case portion providing a mounting surface for a valve body. Forces generated by a hydraulic servo in operation of a brake are confined to the inside of a rear cover joined to the mission case. An extension protrudes from the rear cover and extends into the interior of the mission case with a multi-plate brake splined thereto. The force generated in operation of the brake is received by the cylinder as a reaction force. However, since the hydraulic servo cylinder and the extension are both integral with the rear case, the reaction force is confined to the interior of the rear cover without acting on the mission case.Type: GrantFiled: July 31, 1996Date of Patent: June 23, 1998Assignee: Aisin AW Co., Ltd.Inventors: Kazumasa Tsukamoto, Masahiro Hayabuchi, Masaaki Nishida, Kaoru Ono