Shifting Rack Patents (Class 74/30)
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Publication number: 20130213161Abstract: Rack and pinion drive for a motor vehicle, with a steering housing (1), in which a steering pinion (2) is rotatably mounted and is in engagement with a tooth segment (3) of a toothed rack (4) displaceably mounted in the steering housing (1) in the direction of a longitudinal axis (5), wherein the tooth segment (3) forms an even surface with the upper face thereof facing the steering pinion (2), wherein the toothed rack (4) has two guide surfaces (9), which are even and are oriented at an acute angle to a surface normal of the tooth segment (3), and wherein at least one guide roller (11) is provided on either side of the toothed rack (4), said rollers being in contact with the guide surfaces (9), wherein the two guide rollers (11) are provided respectively on a left and a right side of the pinion when viewed from a toothing engagement point with the toothed rack.Type: ApplicationFiled: November 16, 2011Publication date: August 22, 2013Applicant: ThyssenKrupp Presta AGInventors: Manfred Rombold, Thomas Lubojatzky
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Publication number: 20130205926Abstract: A push-chain includes a plurality of push-chain links, each push-chain link of the plurality of push-chain links including two strip-shaped mounting pieces disposed opposite one another and one connecting piece that connects at most half of an end face of the two mounting pieces at one side. Each of the two mounting pieces is provided with two mounting holes in the length direction. A distance between the two mounting holes is equal to half the length of the mounting piece. The mounting holes on the two mounting pieces are arranged opposite one another, and two corners on another side of each of the two mounting pieces are rounded corners allowing the push-chain to bend. Two adjacent push-chain links of the plurality of push-chain links are hinge-connected in a horizontally staggered arrangement by way of a chain pivot and the mounting holes.Type: ApplicationFiled: August 10, 2012Publication date: August 15, 2013Applicant: Siemens AktiengesellschaftInventors: Jian Huang, Jian Liu, Yun Ping Wang
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Publication number: 20130205927Abstract: In order to stably drive a body to be driven such as a lifting table, an engagement chain type device (100) for forward and backward movement is configured in such a manner that a pair of engagement chains (110, 110) has rigid chain portions (110D). The rigid chain portions (110D) are configured in such a manner that, within a predetermined range from the front ends of the chains in the direction in which the pair of engagement chains (110, 110) is rigid, inner tooth plates (111) are constantly engaged with each other and outer tooth plates (112) are constantly engaged with each other. Square column-shaped reinforcement core members (140) fitted in the square column-shaped hollow sections (S) of the rigid chain portions (110D) are connected to mounting members (C).Type: ApplicationFiled: July 27, 2011Publication date: August 15, 2013Applicant: Tsubakimoto Chain Co.Inventors: Tomoyuki Saji, Yoshifumi Takeuchi
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Publication number: 20130200285Abstract: An actuator for a valve assembly is provided. The actuator has an actuator body and at least one piston configured to travel within the actuator body. The actuator has an output shaft located at least partially within the actuator body and configured to couple to a valve stem of a valve wherein the output shaft has a plurality of teeth protruding from a pinion. The actuator has at least one rack configured to move with each of the at least one piston, the rack having a piston end and a terminal end and wherein the rack has a plurality of rack teeth configured to engage the plurality of teeth on the output shaft. The terminal end of the rack is configured to be maintained a minimum distance beyond an engagement point, wherein the engagement point is located between the rack teeth and the teeth in all operating positions.Type: ApplicationFiled: June 17, 2011Publication date: August 8, 2013Inventors: David Gent, John Dernovsek, Darin Carlson
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Publication number: 20130152712Abstract: A motor assembly for a vehicle may include a brushless DC (BLDC) driving motor received in a case, a pinion fixed to a motor shaft rotatably coupled to the driving motor, a driven wheel rotatably positioned on a base of a holding stack extending from one end of the case, and fixed to a driven wheel shaft rotatably mounted on the base to rotate in engagement with the pinion, and a wire actuating pinion fixed to the driven wheel shaft.Type: ApplicationFiled: October 25, 2012Publication date: June 20, 2013Applicants: Junyoung Industrial Co., Ltd., Hyundai Motor CompanyInventor: Hyundai Motor Company
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Publication number: 20130152713Abstract: A force transfer mechanism includes cylindrical guide housing; a movable body which is slidably arranged in the guide housing so as to move in a linear direction by means of an externally applied force, and which includes a cutout groove having one or more inclined surfaces, and through-holes formed in a direction perpendicular to the linear motion direction in portions corresponding to the inclined surfaces; and a slave unit, one end of which is coupled to the movable body such that said end passes through the through-holes of the movable body and moves along the inclined surfaces of the cutout groove vertically relative to the movement direction of the movable body, and the other end of which is elastically supported.Type: ApplicationFiled: August 26, 2011Publication date: June 20, 2013Inventor: Young Hee Kim
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Publication number: 20130140105Abstract: Disclosed are a pinion sensor assembly and an electric power steering apparatus having the same. According to the present invention, it is possible to substantially reduce the number of constitutional elements to be assembled when assembling a torque sensor and neighboring elements, to reduce an error in change of torque caused by accumulation of assembling errors of the constitutional elements, thereby preventing a malfunction, and to enhance assemblability.Type: ApplicationFiled: December 6, 2012Publication date: June 6, 2013Applicant: MANDO CORPORATIONInventor: MANDO CORPORATION
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Publication number: 20130074621Abstract: A lightweight and low cost gear housing for a steering gear unit is achieved. Together with forming an outward-facing flange shaped convex engagement section 43 around the middle section in the axial direction of a rack shaft 40, a gear housing is constructed that comprises a pinion-side housing 10, a non-pinion-side housing 20, and an intermediate cylindrical section 30. As a result, movement of the rack shaft 40 toward the pinion side and the non-pinion side is restricted by both ends of the pinion-side housing 10. Therefore, portions that require large strength can be limited to the pinion-side housing 10 that is short in the width direction of the vehicle, so by reducing the wall thickness of the intermediate cylindrical section 30, or by making the intermediate cylindrical section 30 using a flexible material, it is possible to make the member lightweight, as well as processing become easier, so it becomes possible to reduce the manufacturing cost.Type: ApplicationFiled: April 24, 2012Publication date: March 28, 2013Applicant: NSK Ltd.Inventors: Seiji Ueno, Toshiyuki Arai, Ryota Sugihara
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Publication number: 20130055834Abstract: A powered dispensing tool includes a housing, a motor at least partially positioned within the housing, a rack operably coupled to the motor for powered translation, and a transmission selectively operably coupling the motor and the rack. The transmission includes an output shaft rotatable in response to rotation of the motor, and an output member drivably coupled to the rack and supported on the output shaft for relative rotation therewith. The transmission also includes a clutch member coupled for co-rotation with the output shaft and movable along the output shaft between a first position, in which the clutch member is engaged with the output member for transferring torque from the output shaft to the output member, and a second position, in which the clutch member is disengaged from the output member to inhibit torque transfer between the output shaft and the output member.Type: ApplicationFiled: August 30, 2012Publication date: March 7, 2013Inventors: Michael Naughton, Anna M. Kaczmarczyk, John G. Marx, David P. Lincoln, Joseph H. Ellice, Troy C. Thorson
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Publication number: 20130036845Abstract: A rack and pinion steering gear unit is achieved that is capable of preventing an increase in operating force of the steering wheel and auxiliary operating force from a motor, and improving the response performance to minute operation when traveling straight. A pressing roller 34 elastically pushes the rear surface 29 of a rack shaft 9 toward a pinion shaft 5. This pressing roller 34 is supported by way of a radial needle bearing 16a by a support shaft 33 that is supported by and fastened to a holder 30 so as to be able to rotate freely. A thrust needle bearing 35 that receives a thrust load that is applied to the pressing roller 34 is provided between both side surfaces in the axial direction of the pressing roller 34 and the inside surface of the holder 30.Type: ApplicationFiled: May 14, 2012Publication date: February 14, 2013Applicant: NSK LTDInventors: Shinya Amada, Toshiyuki Arai
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Publication number: 20130020264Abstract: There is disclosed a trash rake system for use in clearing debris from an intake screen of an intake trash rack of a water intake port of a water use facility. The intake screen is configured to collect debris transported by water, for example, a river, to prevent the debris from entering the intake port of the water use facility. The trash rake system includes a track system, a movable support structure, a rack and pinion drive mechanism, and a controller configured to receive signals from an encoder on a drive motor and a proximity sensor system.Type: ApplicationFiled: July 11, 2012Publication date: January 24, 2013Inventor: Thomas J. Reiss, JR.
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Publication number: 20130000427Abstract: In a rising cable (1) with a driver (5) which is fastened at its one end and is configured for coupling to a sliding element (17) which can be moved in the axial direction of the rising cable (1), the driver (5) is configured as a cast metal body which is cast around the end region of the rising cable (1), and said driver (5) has a lateral recess (16) which is configured for coupling and is arranged in the axial direction on the other side of the end of the rising cable (1), wherein an axially parallel pin (10) is cast integrally in that cross section of the driver (5) which remains next to the recess (16).Type: ApplicationFiled: February 10, 2011Publication date: January 3, 2013Applicant: GEMO D. G. MORITZ GMBH & CO. KGInventor: Klaus Stenzel
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Publication number: 20130000428Abstract: A multi-leaf collimator device for radiotherapy, including: a frame that has a box shape and has through-holes formed in top and bottom surfaces thereof; a plurality of collimators that are received in the frame, wherein each of the collimators includes a rack gear formed on the top surface of the collimator, the collimators are symmetrically arranged in a left-right direction about a central portion of the frame, and are slidably provided on the frame; and a motion driving unit that includes a pinion gear that is formed to be detachable from the rack gear formed on the top surface of the collimator, and is provided on the frame to move the pinion gear in a front-back direction of the frame and an up-down direction of the frame.Type: ApplicationFiled: March 3, 2011Publication date: January 3, 2013Applicant: KOREA INSTITUTE OF RADIOLOGICAL & MEDICAL SCIENCESInventors: Young Hoon Ji, Hai Jo Jung, Kum Bae Kim, Mun Sik Choi, Seung Woo Park
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Publication number: 20110303028Abstract: A controllable steering rack guide system includes a pinion having pinion gear teeth and a steering rack having rack gear teeth engaged with the pinion gear teeth of the pinion. A rack guide is radially moveable relative to the steering rack for applying a radial force to the steering rack. A primary spring applies a compression force on the rack guide for forcing the rack guide radially toward the steering rack. The compression force of the primary spring is continuously adjustable during operation of the pinion and the steering rack.Type: ApplicationFiled: June 14, 2010Publication date: December 15, 2011Applicant: HONDA MOTOR CO., LTD.Inventors: Jinghong Yu, Daniel Vogel
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Publication number: 20100242639Abstract: The invention relates to a rack-and-pinion steering gear with a steering housing, which is tubular and has a housing axis, wherein in the steering housing a rack is mounted in bearings displaceably towards a longitudinal axis, and with a steering pinion, which is mounted in a pinion housing rotatably about an axis and has a pinion gearing, which engages with a gearing of the rack, in which at least one bearing is formed as an eccentric sliding bearing, which can rotate relative to the steering housing, so that the rack can be pressed towards the steering pinion.Type: ApplicationFiled: March 26, 2010Publication date: September 30, 2010Applicant: ThyssenKrupp Presta AGInventor: Frank Birkwald
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Patent number: 7765885Abstract: The disclosed system, device and method for providing a low aspect rack and pinion assembly includes a rack engaged with a ball screw and a pinion. The rack is generally responsive to the rotation of the ball screw and the pinion is generally responsive to the movement of the rack. The separating forces generated by the engagement of the rack and pinion are suitably reacted by one or more stabilizer bearings engaged with the structure of the rack and pinion to prevent the rack and pinion from disengaging while maintaining a low aspect profile.Type: GrantFiled: March 27, 2006Date of Patent: August 3, 2010Assignee: Raytheon CompanyInventor: Erik A. Fjerstad
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Patent number: 7581926Abstract: A power generating system wherein a turbine is mounted on top of a tower or tethered underwater. The turbine includes a rotor having a main blade connected to a rotor hub and an extender section. An adjusting device positions the extender blade between a retracted position within the main blade and to an extended position to expose more or less of the rotor to the fluid flow. The adjusting device includes a servo-controlled rack and pinion mechanism that converts rotation of the pinion by a servomotor into linear motion of the extender blade. A generator is connected to the turbine for generating electrical energy.Type: GrantFiled: March 18, 2005Date of Patent: September 1, 2009Assignee: Clipper Windpower Technology, Inc.Inventors: James G. P. Dehlsen, Amir S. Mikhail
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Patent number: 7515508Abstract: An indicator assembly for a wearable electronic device having a dial, a slotted opening therein and surface indicia to which an indicator can point and convey information thereby, wherein the indicator assembly comprises a track assembly comprising a first track and a second track spaced apart and aligned parallel thereto, wherein each track includes teeth running along at least a respective portion thereof, wherein the teeth of the respective tracks are in facing alignment; a track assembly gearing assembly that meshingly engages the teeth of the first and second tracks and the gears of a gear assembly so that the track assembly moves linearly; an indicating assembly coupled to the track assembly and extending through the slotted opening in the dial, wherein the linear movement of the track assembly causes the indicating assembly to move linearly in the slotted opening; whereby an indicator of the indicating assembly conveys information by referring to particular surface indicia on the dial.Type: GrantFiled: March 12, 2008Date of Patent: April 7, 2009Assignee: Timex Group B.V.Inventor: Gerhard Stotz
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Publication number: 20090007707Abstract: A closure system for a motor vehicle includes a pinion and a pair of U-shaped, flat sliders. The pinion is engaged to a drive shaft to rotate in a first rotational direction and an opposite second rotational direction in response to the drive shaft rotating. Each slider has an inner leg and an outer leg connected at one end to a bridge. The inner surface of each inner leg includes a gear rack. The inner surfaces of the inner legs face one another and surround opposite sides of the pinion such that corresponding portions of the gear racks engage the respective opposite sides of the pinion whereby the sliders are longitudinally displaced away from one another in response to the pinion rotating in the first rotational direction and are longitudinally displaced toward one another in response to the pinion rotating in the second rotational direction.Type: ApplicationFiled: July 2, 2008Publication date: January 8, 2009Applicant: MAGNA CAR TOP SYSTEMS GMBHInventor: Thorsten Schumacher
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Publication number: 20080115604Abstract: Disclosed is an apparatus for fixing a gearbox of a liquid material spray printer, which enables accurate printing by exactly transferring a driving force of the gearbox to a transferring table. The apparatus includes a pinion gear engaged with a rack gear mounted to the transferring table so that the transferring table reciprocates within a range, and fixes the gearbox installed to a guide flat plate guiding reciprocation of the transferring table. The apparatus includes a sliding member including upper and lower sliders coupled with each other slidably in its length direction, wherein the upper and lower sliders are coupled to the guide flat plate and the gearbox respectively so that the gear box is slidable within a range perpendicularly to reciprocation direction of the transferring table; and an elastic member installed to the gearbox for biasing the pinion gear to be closely contacted with the rack gear.Type: ApplicationFiled: May 17, 2005Publication date: May 22, 2008Inventor: Hyung-Dae Moon
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Patent number: 7004528Abstract: An operating mechanism for laterally moving a slide-out section of a vehicle between a retracted position and an extended position includes two support members and a rack and pinion assembly. The two support members can have alignable mounting locations that allow for height adjustable mounting of the slide-out section. The rack and pinion assembly is operable to move the slide-out section from the retracted position to the extended position, preferably by the engagement of a pair of pinions with a pair of racks mounted to elongated rail members mounted to the bottom of the slide-out section. Rollers or other anti-friction members can be added to support the rails and ease the movement of the slide-out section.Type: GrantFiled: May 12, 2005Date of Patent: February 28, 2006Assignee: Actuant CorporationInventors: Timothy L. Nye, Robert H. Schneider
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Patent number: 6896307Abstract: An operating mechanism for extending a slide-out section of a vehicle includes a pair of rail supports secured to a vehicle frame and a pair of rail members connected to the slide-out section with one rail member slidably engaging each rail support. Each rail member is driven by engagement of a rotary member with a linear intermeshing member, such as dedicated rack and pinion arrangements. A shaft connects the rotary engagers so that movement of the rail members is synchronized using a single drive unit. A pair of rollers are mounted to each rail support, one roller on each side of the racks, to support the rack relative to the associated rotary engager.Type: GrantFiled: September 10, 2004Date of Patent: May 24, 2005Assignee: Actuant CorporationInventors: Timothy L. Nye, Robert H. Schneider
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Patent number: 6805391Abstract: An operating mechanism for extending a slide-out section of a vehicle includes a pair of rail supports secured to a vehicle frame and a pair of rail members connected to the slide-out section with one rail member slidably engaging each rail support. Each rail member is driven by engagement of a rotary member with a linear intermeshing member, such as dedicated rack and pinion arrangements. A shaft connects the rotary engagers so that movement of the rail members is synchronized using a single drive unit. A pair of rollers are mounted to each rail support, one roller on each side of the racks, to support the rack relative to the associated rotary engager.Type: GrantFiled: January 20, 2004Date of Patent: October 19, 2004Assignee: Actuant CorporationInventor: Robert H. Schneider
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Patent number: 6412802Abstract: A rectilinear propulsion apparatus for propelling a bicycle. The rectilinear propulsion apparatus includes a rectilinear drive portion comprising a plurality of rack gear assemblies fixedly coupled to the sides of the middle frame portion of the bicycle, each of which have a pedal for biasing the rack gear assemblies by the rider. A quadrant drive portion comprising a plurality of quadrant sprocket members fixedly coupled to a main drive gear member which drives a drive wheel of the bicycle. The sprocket members are designed for alternately engaging the rack gear assemblies thereby propelling the bicycle. A clutch member coupled to the main drive gear member permits one of the rack gear assemblies to ratchet upwardly while the opposing gear assembly is being manually biased downwardly by the rider thereby allowing the rider to reciprocately propel the bicycle.Type: GrantFiled: September 7, 2001Date of Patent: July 2, 2002Inventor: Marion S. Kugel
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Patent number: 6116671Abstract: A low profile operating mechanism for selectively extending and retracting a slide-out section of a vehicle body includes a pair of substantially parallel outer rails secured to the vehicle body. Each of the outer rails has an inner end and an outer end. A pair of substantially parallel inner rails are provided for supporting the slide-out section thereon. Each of the inner rails are slidably mounted for longitudinal movement within one of the outer rails. A drive arrangement is secured to the outer ends of each outer rail for selectively moving the inner rails into and out of the outer rails to extend and retract the slide-out section of the vehicle body. The drive arrangement is constructed and arranged to define rearwardly thereof a relatively unobstructed storage space beneath the vehicle body.Type: GrantFiled: March 25, 1997Date of Patent: September 12, 2000Assignee: Applied Power Inc.Inventor: Robert H. Schneider
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Patent number: 6029379Abstract: A thermostat control device (10), in particular an electric iron thermostat (7), comprising a support (11), an aperture (12) in said support for receiving a mobile control device (13) a first device forming a rack (14) co-operating with said control device, a guide device (19) for said rack and a gear wheel (16) cooperating with the first rack. The invention is characterized in that a second rack (150) is used provided in the extension of said first rack a gear wheel (16) comprising two toothed zones with respectively different primary circle radii, the first toothed zone (17) cooperating with the first rack (14) and the second toothed zone (18) cooperating with the second rack (16), said gear wheel being capable of driving in rotation said thermostat (7) rod (8).Type: GrantFiled: January 27, 1999Date of Patent: February 29, 2000Assignee: SEB S.A.Inventors: Jean-Louis Brandolini, Stephane Garda
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Patent number: 5810646Abstract: Means for producing reciprocatory movement of a vice carrier (18) across a guideway (17) mounted on a body moulding (11, 16), which partly shrouds a rotatably driven grinding wheel (14), comprise a rack moulding (57) having upper and lower racks (61, 62) which are alternately engaged by a pinion (44) driven from the grinding wheel drive, in use. Rack moulding movement is transmitted to the vice carrier and spring means (67, 68) move the rack moulding to change the pinion engagement from the lower rack to the upper rack and vice versa at the ends of the racks, thereby reversing the rack moulding movement. A guide peg (56) of the body moulding alternately engages in upper and lower slots (65a, 65b) of the rack moulding to maintain the pinion in engagement with its appropriate associated rack while it is between the ends thereof. The arrangement is intended for use as part of a releasable adapter for a powered grinding tool incorporating said grinding wheel.Type: GrantFiled: August 26, 1996Date of Patent: September 22, 1998Assignee: Turner Intellectual Property LimitedInventor: Paul Steabben Hepworth
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Patent number: 5655404Abstract: A mechanism of converting a reciprocal movement into a rotary movement comprises a coulisse and a toothed unit cooperating with one another, the coulisse being shaped so that conversion of the reciprocal movement to rotary movement is performed in a sequence successively by the toothed unit and the coulisse. Also, an internal combustion engine with the new mechanism can be provided.Type: GrantFiled: August 9, 1994Date of Patent: August 12, 1997Inventor: Mikhail Tsepenuk
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Patent number: 5540111Abstract: Drive apparatus and method for converting linear motion to rotary motion and vice versa are disclosed. The drive apparatus includes a rack having a plurality of spaced first engagement members arranged single file in a first path and a sprocket having a plurality of spaced second engagement members arranged single file in a second path. The rack's engagement members engage the sprocket's engagement members to rotatingly drive the sprocket when the rack is driven and drive the rack when the sprocket is driven. In addition, either the rack's engagement members or the sprocket's engagement members have outer surfaces which are defined by a member selected from the group consisting of cylindrical bearings and reduced friction material. To operate the apparatus to drive a sprocket, a downstroke is made with the rack to move it as far as it can be moved in a first predetermined direction which rotates the sprocket in a desired clockwise or counter-clockwise direction.Type: GrantFiled: October 3, 1994Date of Patent: July 30, 1996Assignees: Franklin E. Barnett, Brian D. SmithInventors: Franklin E. Barnett, Brian D. Smith
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Patent number: 5495868Abstract: A shaft is rotatable in a housing to several detented positions, established by a detent wheel and spring pressed detent balls, and is provided with a pinion gear which drives a gear rack on a valve carriage guided for linear movement along a spacer. A rubber valve on the carriage is movable across vacuum valve ports to perform vacuum switching functions. A bearing on the carriage moves along a slot in the spacer and carries an idler gear which rolls along a gear rack on the housing and drives a gear rack on an electrical carriage, slidable along the spacer. Fan and clutch contactors are movable with the electrical carriage across fixed contacts to perform electrical switching functions. The detent balls and springs can be inserted through access slots from outside the housing. The housing has two mounting members with latching hooks projecting forwardly for insertion into slots in a supporting panel. A boss on the housing around the shaft is insertable into an opening in the panel.Type: GrantFiled: December 30, 1994Date of Patent: March 5, 1996Assignee: Indak Manufacturing Corp.Inventor: John G. Cummings
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Patent number: 5494254Abstract: A rotary flow control valve including a valve spool which is rotated back and forth to move a port in the valve spool into and out of alignment with the main fluid passageway of the valve to selectively open and close the valve. The spool has a pinion gear at each end of the spool and each pinion gear is engaged by a pair of racks with the racks in a pair moving at any given time in opposite directions. Each rack is constituted by spaced rack teeth formed in the side wall of a piston slidably mounted in a cylinder bore in the valve body, and the rotation of the valve spool is achieved by selective routing of pressurized fluid to the cylinder bores containing the pistons defining the racks.Type: GrantFiled: September 6, 1994Date of Patent: February 27, 1996Assignee: JDL EnterprisesInventor: John Dominka
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Patent number: 5372049Abstract: A motor-driven transmission mechanism including a motor having a drive gear coupled to an output shaft thereof and extended out of a hole on a slide way above a table, a first transmission block driven by the drive gear to move in the slide way back and forth alternatively, a second transmission block carried on the first transmission block, a cover covered on the table over the first and second transmission blocks, a transmission shaft having one end coupled to a set of transmission gears being meshed with parallel racks on the second transmission block and an opposite end extended out of the cover and coupled to an ornament, whereby turning the motor causes the transmission shaft to rotate the ornament back and forth alternatively.Type: GrantFiled: June 7, 1993Date of Patent: December 13, 1994Assignee: Steve YangInventor: Chen I. Chuang
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Patent number: 5351566Abstract: Drive apparatus and method for converting linear motion to rotary motion to rotatingly drive the driveshaft of a motor vehicle are disclosed. The drive apparatus includes a sprocket rigidly connected to a shaft and axially aligned thereabout. In addition, a moveable ratch for moving between first and second drive positions and having opposing first and second linear sprocket engaging drive segments is provided. The first linear drive segment of the moveable ratch engages the sprocket when the ratch is in its first drive position and the second linear drive segment engages the sprocket when the ratch is in its second drive position.Type: GrantFiled: August 16, 1993Date of Patent: October 4, 1994Assignees: Franklin E. Barnett, Brian D. SmithInventor: Franklin E. Barnett
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Patent number: 5323690Abstract: A linear movable apparatus for imparting rotational movement to a turntable is provided. The turntable is secured to a rotatably mounted shaft having a ring gear thereon for meshed engagement with gear teeth provided on a piston rod which extends between a pair of pistons. Each piston is reciprocally carried in aligned cylinder housings mounted in a support structure. An adjustable mechanism is provided for retaining the piston rod in snug-fitting relation with the ring gear, and a bracket assembly is secured around the ring gear to support the adjustable mechanism against the ring gear.Type: GrantFiled: March 5, 1993Date of Patent: June 28, 1994Inventor: James O. Sims
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Patent number: 5269339Abstract: A bonnet is provided for operating a quarter turn valve assembly. The valve assembly includes a valve housing formed to include a fluid-conducting passage therein and a quarter turn valve moveable in the passage to regulate flow of fluid through the passage. The bonnet comprises a mechanism for moving the quarter turn valve in the passage, the moving mechanism including an elongated linkage assembly. The bonnet further includes an actuator housing containing the moving mechanism and an adapter block interposed between the valve housing and the actuator housing and configured to provide a mechanism for connecting the actuator housing to the valve housing. The adapter block includes a recess formed therein including a mechanism for receiving the elongated linkage assembly. The bonnet further includes a mechanism for coupling the actuator housing to the valve housing to trap the adapter block therebetween so that the actuator housing, adapter block, and valve housing are held together as a unit.Type: GrantFiled: June 19, 1991Date of Patent: December 14, 1993Inventor: Michael A. Szatmary
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Patent number: 5267002Abstract: A document platen driving device is provided with an endless gear connected to a document platen, whereon a document is placed, which reciprocates. A sun gear is secured to a fixed station within a space surrounded by the endless rack, and a planetary gear meshing with the endless rack and with the sun gear is also provided within the space. The planetary gear is a double gear composed of a large gear and a small gear having different pitch circle diameters. It is arranged such that the document platen is moved forward by meshing the small gear with the endless rack, and moved backward by meshing the large gear with the endless rack. In this arrangement, the backward moving speed of the document platen can be set faster than the forward moving speed, thereby permitting a reduction of the entire time required for a copying process, especially for a successive copying process.Type: GrantFiled: January 21, 1993Date of Patent: November 30, 1993Assignee: Sharp Kabushiki KaishaInventors: Yoshifumi Maitani, Naoyuki Kamei, Yoshiaki Ibuchi, Mitsuru Ogura, Hidenori Ohnishi, Minoru Tomiyori, Yasushi Matsutomo
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Patent number: 5186435Abstract: Improvements to a method and apparatus are disclosed for making a series of coil springs pocketed within individual pockets in an elongate fabric strip comprised of two overlying plies capable of being welded together. Improvements include improvements to fabric tracking and folding, fabric handling along the fabric path, and various direct-drive configuration eliminating the need for pneumatic cylinders.Type: GrantFiled: January 3, 1991Date of Patent: February 16, 1993Assignee: Simmons CompanyInventor: Ruslon J. Smith
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Patent number: 5125290Abstract: A device with one or more actuator racks carried by a housing for reciprocation and each meshing with a separate pinion gear having a non-circular central hole in which a complimentary coupling shaft can be removably received for rotation in unison with the gear(s). The pinion gears are carried and journalled for rotation in the housing by a pair of co-axial bushings with generally opposed and spaced apart axially projecting rims received in mating peripheral shoulders in the side faces of the gears. The gear teeth extend generally axially continuously between their side faces with the shoulders in their side edges. Preferably the radial extent of each shoulder is less than the radial extent of the teeth. When the coupling shaft is removed from the gears each pinion can rotate independently of the shaft and each other to initially position its associated rack at a desired location and when the shaft is inserted in the pinion gears they rotate in unison to simultaneously actuate the rack(s).Type: GrantFiled: February 21, 1990Date of Patent: June 30, 1992Assignee: Power Components, Inc.Inventor: Patrick J. Cotter
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Patent number: 4987624Abstract: A device for imparting multi-directional rocking motion comprising a housing, a drive mechanism supported by the housing for providing reciprocating motion to an arm extending through a wall thereof, and an adjustable orientation attachment clamp for attaching the housing to a component arranged for rocking motion in relation to a surface, the housing being attached so as to direct the arm for contact with the surface during its reciprocating motion, the rocking motion being imparted to the component in accordance with the arm direction.Type: GrantFiled: March 2, 1988Date of Patent: January 29, 1991Inventor: David I. Nafti
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Patent number: 4951615Abstract: A four stroke internal combustion engine including a combustion chamber, a movable assembly, a stationary assembly and a motion conversion mechanism. The combustion chamber is formed between the stationary assembly and the movable assembly so as to be located radially of the predefinable pivot point. The movable assembly and the stationary assembly are cooperatively associated one with another such that the movable assembly is capable of being made to undergo oscillating motion about the aforementioned predefinable pivot point in a semicircular path about the stationary assembly. Motion is imparted to the movable assembly by virtue of the forces produced during combustion in the combustion chamber acting on a vane which projects outwardly of the movable assembly into the combustion chamber.Type: GrantFiled: August 17, 1989Date of Patent: August 28, 1990Inventor: Nikolaos S. Pahis
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Patent number: 4932276Abstract: Presented is a fluid-operated control device that may be operated by pressurized gas or liquid. A housing contains a double-acting piston assembly that is moveable in a longitudinal bore in the housing. A gear rack connects the two pistons. A rotor assembly in the housing includes a pinion gear meshing with the gear rack, and a second pinion gear meshes with a second gear rack attached to a slide member moveably supported on the housing. Thus, injection of fluid under pressure behind one or the other of the pistons causes axial translation of the pistons and connecting gear rack. Translation of the gear rack effects rotation of the rotor assembly, which in turn effects axial translation of the second gear rack to which is attached the slide member.Type: GrantFiled: August 11, 1988Date of Patent: June 12, 1990Assignee: Rotoslide Co.Inventors: Donald R. Treadwell, Boris Dushine
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Patent number: 4845795Abstract: A periodontal cleaning device including a hollow housing having a handle member and a brush head member. The brush head includes a gear train reciprocally driven by a rack. The gear train includes at least one drive gear engageable by the rack which in turn drives a plurality of series interconnected driven gears. The drive gear includes one portion engaged by the rack and another portion engaged by an adjacent driven gear. An axial width of a gear portion of the drive gear is greater than the axial width of gear portions of the driven gears so that in operation, the rack does not engage the driven gears. The drive and driven gears each include a tuft holder by which bristles are removably held.Type: GrantFiled: October 25, 1988Date of Patent: July 11, 1989Assignee: Dental Research CorporationInventors: Alan D. Crawford, Allan B. Johnson, John M. Trenary
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Patent number: 4819499Abstract: An end take-off rack and pinion steering gear assembly is converted into a center take-off rack and pinion steering gear assembly by attaching a U-shaped bracket to the opposite ends of the rack bar of the end take-off assembly. Steering linkage is connected to the base leg of the bracket extending parallel to the rack, at a point which is intermediate the ends of the bracket and which corresponds to the linkage attachment point on a center take-off assembly. The bracket length is adjustable to correspond to the length of the rack bar.Type: GrantFiled: July 16, 1987Date of Patent: April 11, 1989Assignee: TRW Inc.Inventor: Philip C. Morell
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Patent number: 4803964Abstract: An internal combustion engine comprising a piston slidably disposed for rectilinear reciprocal movement within a cylinder. A drive rack pivotally mounted to the piston carrys a continuous internally facing row of teeth. A drive gear nonrotatably keyed to a drive shaft and internally adjacent to the continuous row of teeth engages a portion of the drive rack teeth. A runner guides the drive rack such that the drive gear cooperatively associates with the drive rack teeth to convert rectilinear movement of the reciprocating piston into rotary movement. One or both of the drive gear and the drive rack are shaped in accordance with the variable forces exerted on the piston during its motion so as to apply torque more evenly to the crank shaft.Type: GrantFiled: December 11, 1986Date of Patent: February 14, 1989Inventors: Wladyslaw Kurek, Andrzej Startek
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Patent number: 4782548Abstract: A linear-motion wiper structure comprising a multistage hydraulic cylinder arm which can be driven by a transmission mechanism having both vertical and horizontal displacement function whereby a blade, which is driven by the arm, can wipe on the windshield in a linear reciprocating motion so as to completely clear the drops of rain on the windshield, and this may provide a clear vision for users who drive in the rain.Type: GrantFiled: August 24, 1987Date of Patent: November 8, 1988Inventor: Edward Y. Wong
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Patent number: 4780042Abstract: A tilting mechanism for precisely controlling the pouring of metal from a melting crucible is disclosed. The mechanism utilizes a pressure roller journalled in an adjustable bearing mount to clearance-free urge a rack against a pinion to tilt the crucible. At least one boom is disposed on the adjustable bearing mount to pivot the hydraulic cylinder in a parallel direction relative to the tilting shaft.Type: GrantFiled: June 2, 1987Date of Patent: October 25, 1988Assignee: Leybold-Heraeus GmbHInventors: Wolfgang Reuter, Oskar Tippmann
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Patent number: 4727642Abstract: A cylindrical support for a tool changer arm is provided with U-shaped gear toothed means, such that rotation of a pinion which engages the gear toothed means causes an axial movement of the tool changer, a 180.degree. rotation of the tool changer, and an opposite axial movement of the tool changer.Type: GrantFiled: May 20, 1986Date of Patent: March 1, 1988Assignee: Burkhardt & Weber GmbH & Co KGInventors: Walter Christner, Peter Haussler
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Patent number: 4691581Abstract: A gearmotor for the alternate drive of two operations has a housing which receives a drive pinion, mounted on the output shaft of the reduction gear. The drive pinion is able to engage alternately with a first rack cable A and a second rack cable B, both mounted parallel in a sliding guide that can move in the housing in a plane perpendicular to the shaft of the drive pinion between two end positions in each of which one of the two cables is engaged with the drive pinion while the other cable is in a disengaged position. A device is provided for actuating the sliding guide. Application is particularly for electrical equipment of a motor vehicle side door.Type: GrantFiled: December 5, 1985Date of Patent: September 8, 1987Assignee: Regie Nationale des Usines RenaultInventor: Jacques Bascou
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Patent number: 4559843Abstract: The invention relates to a device for performing rotational movement and comprises a rotatably element such as a cog-sector (3) or the like, arranged in a housing (1). The sector can easily be connected to rotatable machine elements of various kinds by being provided with an easily exchangeable coupling element (7) which can be displaced axially through a bore in the sector and through two bearings (8, 9) and be detachably fastened to the cog-sector by e.g. screws (14, 15) provided in threaded bores in the sector and abutting radially directed support surfaces in recesses in the element (7) between the bearing surfaces of the bearings (8, 9).Type: GrantFiled: September 20, 1982Date of Patent: December 24, 1985Assignee: SKF Nova ABInventor: Sven W. Nilsson
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Patent number: 4524922Abstract: The invention relates to a fishing reel. It comprises a fishing line storage spool which is driven rotatively by an oscillating movement lever through a gear which includes a one-way coupling, whereby the lever is allowed to return to its initial position at the end of the power stroke. The spool is rotatively coupled to the gear through a torque limiter which also allows the spool to rotate independently of the operation of the lever.Type: GrantFiled: February 3, 1983Date of Patent: June 25, 1985Inventor: Franco Vivarelli