Patents Examined by Janice E. Chartoff
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Patent number: 4872360Abstract: The actuator of the present invention comprises a cylinder with a circular cylindrical cavity slidably engaged by a stationary piston secured to the frame of the actuator by at least one rod extending through one end wall of the circular cylindrical cavity in a leak-proof manner, wherein the stationary piston divides the circular cylindrical cavity into two compartments in a leak-proof manner. Pressurizing one and venting the other of the two compartments moves the cylinder relative to the stationary piston. The outer cylindrical surface of the cylinder includes fastening device for securing an object to be linearly actuated thereto or rack engaging a pinion gear that converts the linear motion of the cylinder to a linear motion of a sliding member with another rack or to a rotary motion of the pinion gear shaft.Type: GrantFiled: May 12, 1988Date of Patent: October 10, 1989Inventors: Hyok S. Lew, Hyon S. Lew
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Patent number: 4872363Abstract: A three-dimensional positioning apparatus comprising a base (180), a first element (182) and a second element (186) is constructed in the form of a sawhorse bracket. The first element (180) is pivotable about a first pivot axis (184) only, and the second element (186) is pivotable about two axes, one substantially parallel to and one substantially perpendicular to the first pivot axis (184). The first element is positioned by a first axially elongatable cylinder (188), lying at an angle to a first plane extending through the first element and through the first pivot axis. The second element is positioned by a pair of second axially elongatable cylinders (194), arranged in a plane generally parallel to the first plane, and angled with respect to each other and converging towards each other from the base to the second element.Type: GrantFiled: January 16, 1987Date of Patent: October 10, 1989Inventor: Doy Rosenthal
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Patent number: 4872359Abstract: A pivotation device for a centrifugal chain assembly of a motor vehicle comprises a drive, a rack longitudinally displaceable by the drive, a gear wheel forming with the rack a gearing, an output drive shaft driven by the gear wheel and a pivotation arm, connected thereto by a coupling, for the centrifugal wheel of the assembly. A guide rod of round material extends parallel to the rack, which is guided in a flying manner on the guide rod. The teeth of the rack are located at the side facing away from the guide rod and the gear wheel supporting the rack against a lateral pivotation about the guide rod.Type: GrantFiled: July 21, 1986Date of Patent: October 10, 1989Inventors: Gerd Schulz, Hans-Peter Hertleif
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Patent number: 4872358Abstract: A driving mechanism having a driving shaft, which is rotatable about a first axis and on which a pressure member is located. The pressure member has a first roller segment which engages a fixed support and a second roller segment which engages an adjustment member. The adjustment member can be coupled to a load displaceable parallel to a second axis. The driving mechanism is particularly suitable for comparatively small and accurate displacements of a load, such as, for example, a mask table in an opto-lithographic apparatus.Type: GrantFiled: February 29, 1988Date of Patent: October 10, 1989Assignee: U.S. Philips CorporationInventor: Edwin J. Buis
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Patent number: 4869120Abstract: This invention pertains to a power take-off device for taking-off power from a rotary output shaft of a transmission, through an output gear connected to a speed meter cable and an input gear meshing with the output gear, to a speedometer in a motorcycle.The improvement provided by the invention resides in a combination including: a drive sprocket mounted on a projecting portion of the transmission output shaft, which shaft projects outwardly from a tranmsission case; a sprocket cover for covering the drive sprocket; a gear case for housing the input gear and the output gear; and a connecting means provided at an end of the output shaft of the tranmission for connecting a rotating shaft of the input gear to the output shaft of the transmission.The gear case is operable to support the rotating shaft of the input gear for detachable driven engagement with the connecting means of the output shaft of the transmission.Type: GrantFiled: July 25, 1988Date of Patent: September 26, 1989Assignee: Honda Giken Kogyo Kabushiki KaishoInventors: Mikio Kashiwai, Teruo Kihara
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Patent number: 4864880Abstract: A manipulator drive mechanism employing splined shafts in both a vertical and a horizontal axes. The horizontal splined shaft is rotatably driven by a rack assembly and a pinion gear rotatably fixed with respect to the horizontal splined shaft and which is also slidable along the horizontal splined shaft.Type: GrantFiled: May 25, 1988Date of Patent: September 12, 1989Assignee: Nu-Tec CorporationInventors: Daniel W. Grant, Walter Bell, Jr.
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Patent number: 4864878Abstract: The invention comprises a shaft unit adapted for an in-line connection with the power takeoff of a tractor, with a sprocket wheel of a belt-drive centrifugal pump for driving the pump to supply hydraulic power to spraying equipment pulled by the tractor, and further with a hydraulic pump for driving that pump for driving that pump to supply hydraulic power to planting equipment pulled by the tractor, the shaft unit comprising a pair of straight shafts releasably locked in inserted, releasable relationship with each other within the centrifugal pump sprocket wheel, and extending therefrom to the power takeoff on one side of the sprocket wheel and to the hydraulic pump on the other side of the sprocket wheel.Type: GrantFiled: March 28, 1989Date of Patent: September 12, 1989Inventor: Tod R. Pralle
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Patent number: 4864879Abstract: Oscillatory movements are imparted to plural ornaments of an ornamental assembly from the rotary output drive shafts of a power drive source through a cam assembly driven by each output shaft and connected to plural tappet rods on which the ornaments are supported. Numerous orientations of the tappet rods may be realized to accommodate different positions of the ornaments by detachably securing U-shaped, rectangular-shaped and L-shaped blocks to a casing for rotatably supporting the tappet rods in the different orientations.Type: GrantFiled: June 9, 1988Date of Patent: September 12, 1989Inventor: Jack Hou
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Patent number: 4862755Abstract: An improved power takeoff arrangement for a vehicle four-wheel drive transfer case having high, neutral and low positions. The transfer case input shaft has a integral gear member defining the sun gear of a dual planetary gear assembly having its carrier rings grounded to the transfer case housing. A planetary annulus gear, formed with an inboard axial extension concentrically surrounding the inboard carrier ring, is driven by dual planet pinion gear sets journally supported between the carrier rings. The annulus gear inboard extension is formed with external helical gear teeth adapted to mesh with a power takeoff input gear accessible through an aperture in the housing side wall. The arrangement enables power at a constant relative speed to be transferred from the transfer case input shaft to the power takeoff gear in any of its three positions while obviating unbalanced loading of the dual pinion planetary assembly.Type: GrantFiled: December 15, 1988Date of Patent: September 5, 1989Assignee: Chrysler Motors CorporationInventors: Richard E. Eastman, Anand M. Jagani
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Patent number: 4860605Abstract: A device for producing an axial displacement of two opposing relatively rotatable thrust members having a plurality of conical rolling elements installed between the thrust members which roll on angled ramps hus change the distance between the thrust members, at least one of the thrust washers having a conical face; and a loose outside flange designed as a closed, flexible ring circumscribing the rollers which absorbs the radial forces proceeding from the loaded conical rollers and exerts a binding effect on the conical rollers.Type: GrantFiled: April 7, 1988Date of Patent: August 29, 1989Assignee: SKF GmbHInventors: Armin Olschewski, Armin Schlereth, Paul-Gerhard Hoch
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Patent number: 4858485Abstract: An inscribed transmission device includes a substantially crescent-shaped space between an internal gear and an external gear circumscribingly in mesh with each other. The device comprises a rolling space holder having two sets of two rollers whose centers are situated on radial axes in the crescent-shaped space on both sides of a straight line connecting centers of the internal and external gears. The internal and external gears are provided with roller rolling portions on which the rollers roll. The two sets of rollers are supported by a block member or side plates. The rolling space holder smoothly moves to keep the crescent-shaped space, thereby preventing unintentional disengagement of the internal and external gears.Type: GrantFiled: August 1, 1988Date of Patent: August 22, 1989Assignee: Bridgestone Cycle Co., Ltd.Inventors: Kunitoshi Kozakae, Toru Takeda
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Patent number: 4856371Abstract: A continuously variable transmission having a pair of plate-like omega members rotatable about and spaced on a primary transmission axis to be positioned on opposite sides of a biconical beta body, the axis of which is inclined at a large acute angle with respect to the primary transmission axis so that the beta body and omega members engage in rolling friction contact at two points of contact on opposite sides of the primary transmission axis. The omega body members are connected by an external torque cage and driven by a tubular shaft. The beta body is linked by gearing to a theta shaft rotatably supported within the omega shaft. The omega shaft carries at least one planetary gear set in which the planet gears are rotatably supported in the omega shaft and wherein the sun gear is carried by the theta shaft.Type: GrantFiled: May 19, 1987Date of Patent: August 15, 1989Assignee: Tractiontec CorporationInventor: Yves J. Kemper
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Patent number: 4854183Abstract: The cyclic electromechanical program control comprises an electric motor (6), a gear train (7) driven by the motor and having an impulse gear (26) and an output gear (5) which is engaged with at least one driving rack (3, 4) for an element (1) having a programmable shifting cycle, a driven gear (9) cooperative with the gear train (7) for receiving from the gear train impulses controlling the cycle of the programmable element (1), an electrical circuit (12, 13, 17, 18) associated with the driven gear (9) and adapted to transmit to the motor (6) instructions corresponding to the nature of the impulses received by the driven gear (9). The control further comprises a mechanism for causing th impulse gear (26) to deliver impulses solely in predetermined useful zones of the cycle of said programmable element (1). The gear train (7) is a differential gear train comprising a driving gear (25) without gearing down of the output gear (5).Type: GrantFiled: September 9, 1988Date of Patent: August 8, 1989Assignee: Rockwell-CIMInventors: Pierre Periou, Michel Boilley
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Patent number: 4850466Abstract: A power door lock actuator includes a one piece molded and centrifugally expandable brake ring that is held on a drive ring to a motor shaft within a lock lift arm driving cup that is freely pivoted to the shaft. A camming member on the drive ring fits within the brake ring so as to retain it to the shaft, to maintain it in a ready position spaced from the cup when stationary, and so as to jam it into the wall of the cup when turning.Type: GrantFiled: May 19, 1988Date of Patent: July 25, 1989Assignee: General Motors CorporationInventors: Deno J. Rogakos, Lynn M. Johnston, Keith R. Cook
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Patent number: 4848547Abstract: The invention relates to a torque limiting clutch consisting of a locking member clutch 1 and a free-wheeling clutch 3. The locking member clutch 1 comprises first locking members 4 which engage recesses 6 in the clutch sleeve 7. The locking members 4 are radially movably arranged in bores of the clutch hub and pretensioned by springs 14. After leaving the recesses 6, the cams 5 are prevented from swinging backwards by means of a tilting wedge 8 arranged in a receiving recess 20 of the clutch hub 3 and by supporting itself against the torque transmitting direction with its supporting face 12 on the supporting face 9 associated with a recess 10 in the clutch sleeve 7. In this way, the cams 5 are prevented from swinging backwards and being damaged in the process.Type: GrantFiled: April 22, 1988Date of Patent: July 18, 1989Assignee: Jean Walterscheid GmbHInventor: Klaus Kampf
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Patent number: 4840075Abstract: A window operator having a base with an upstanding pivot pin having a bushing thereon and at least one component pivotally mounted on the bushing. The components are held in assembled relation by a captured washer and the washer has an outer annular portion formed to provide a controlled clearance. A method of forming the window operator comprises assembly of the pivot pin, bushing and pivotal component to a mounting base and the capturing of a washer beneath the head of the pivot pin and with an inner annular part of the washer engaging an upper edge of the bushing which extends beyond the upper surface of the pivotal component, followed by a deformation of the outer annular part of the washer to compress the pivotal component between the washer and the base followed by release of the compressive force to permit spring-back of the outer annular part of the washer to provide the controlled clearance.Type: GrantFiled: May 20, 1988Date of Patent: June 20, 1989Assignee: Truth IncorporatedInventor: Daniel G. Tucker
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Patent number: 4838101Abstract: A power take-off shaft stabilizer unit for maintaining a relatively constant distance between an engine crankshaft and a PTO shaft has a bracket attached to the engine. The bracket receives a bearing unit comprising a casting having a bearing seat or a bearing mounted therein and a plurality of taps formed in the casting. The bearing unit receives the PTO shaft. At least three studs are connected to the casting via taps formed therein. The studs are utilized to connect the bearing unit to the bracket through a plurality of holes formed in the bracket. A first spring loaded bracket arrangement for maintaining an approximately constant belt tension between the engine output shaft and the PTO shaft during rotation thereof is operatively connected to the bearing unit via the two studs. A second spring loaded bracket arrangement for maintaining the position of the PTO shaft relative to the bracket approximately constant is operatively connected to the bearing unit via the other stud.Type: GrantFiled: September 1, 1987Date of Patent: June 13, 1989Assignee: Deere & CompanyInventors: Dale R. Dobberpuhl, Edward C. Kruel
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Patent number: 4831889Abstract: A multi-speed chainless drive mechanism for a cycle-type vehicle comprises a drive shaft rotatably driven by a pedal actuated gear train. The drive shaft, which includes a universal joint, extends away from the gear train. The drive mechanism also comprises a first support provided intermediate the gear train and the universal joint for rotatably supporting the drive shaft to a frame of the vehicle. An elongated shaft extends from the universal joint opposite the gear train. A variable ratio worm gear, more particularly a cone-shaped worm gear, has an opening defined centrally and longitudinally therethrough. The worm gear is slidably mounted on the elongated shaft and is adapted for rotation therewith. The worm gear meshes with a drive gear mounted to a drive wheel of the vehicle. Different gear ratios are thus provided in relation to the longitudinal position of the worm gear on the elongated shaft.Type: GrantFiled: May 17, 1988Date of Patent: May 23, 1989Assignee: Wheled Holdings Inc.Inventor: Edward Howard
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Patent number: 4827793Abstract: A shift tower housing and the outer housing of a vehicle transmission are both formed with a bolt pattern that permits mounting of the shift tower and associated shift lever in both a forward control position and a center control position. Each of the shift bars in the transmission is formed with a pair of notches, a forward notch and a center notch for engaging the lower end of the shift lever in the forward control and center control positions respectively. An interlock bracket is trapped and retained by a mounting plate prior to the installation of the shift tower and is adjustable between the center and the forward positions. The interlock bracket includes a pair of arms for engaging the notches in the shift bars not being engaged by the shift lever to prevent movement of the non-selected shift bars during actuation of the transmission.Type: GrantFiled: June 1, 1988Date of Patent: May 9, 1989Assignee: Dana CorporationInventors: John M. Loeffler, Rick D. Watson
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Patent number: 4821588Abstract: A starter motor includes axial protrusions 9a formed on an end face of a pinion 9 on the side of an engine starting gear 10 with which the pinion meshes to transmit rotation thereto, for breaking alien substances deposited around the pinion by rotation to thereby enable the pinion to mesh with the gear smoothly.Type: GrantFiled: January 26, 1988Date of Patent: April 18, 1989Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Yoshifumi Akae, Tatuo Yabe