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Class 74/422 - Rack and pinion


Subclass of Class 74 - Machine element or mechanism
Definition: Gearing, the gearing embodying racks and pinions.
No. of patents: 425
Last issue date: 01/31/2012


1                      
NumberTitleIssue Date
8104369Hollow rack, hollow rack end diameter reducing method, hollow rack end diameter reducing apparatus, and hollow rack manufacturing method
The one end side portion is nipped by a jig including a jig member having a pair of convex portions which are to be fitted to a depressions in contact with a tooth side face and a inclined portion and positioning a bar and a jig member which is to be clamped/opened ...
01/31/2012
8104368Load bearing sprocket system
A system for laterally transporting a load. The system uses a sprocket and an integrally formed rack combination. The crowns of the teeth of the rack are rounded so as to engage the lower most troughs of the space between the teeth of the sprocket so that a vertical...
01/31/2012
8079280Rack guide and rack-and-pinion type steering apparatus using the same
A rack-and-pinion type steering apparatus 1 includes a gear case 3 made of aluminum or an aluminum alloy and having a hollow portion 2; a steering shaft 6 rotatably supported by the gear case 3 through rolling bearings 4 and...
12/20/2011
7980152Rack and pinion steering gear assembly having self-adjusting eccentric rack bearing
A steering apparatus includes a housing defining a chamber and an aperture extending into the chamber. A rack is disposed within the chamber and moveable along a longitudinal axis. A pinion extends into the chamber for meshing engagement with the rack. A bearing sup...
07/19/2011
7954396Rack and pinion steering gear with automatic adjustment of the thrust element
A rack and pinion steering gear comprising a thrust element disposed in a housing for pressing a rack and pinion against one another. One side of the thrust element is supported against the rack, and another side is supported against a wedge-like part formed of two ...
06/07/2011
7926378Rack and pinion type power steering apparatus
A rack shaft is supported in an inner peripheral portion of a tubular housing of a gear housing via a rack bush. An inner peripheral portion of the rack bush is formed as a peripheral surface approximately similar to a circle in which a peripheral surface constitute...
04/19/2011
7891264Driving mechanism for carrier, recording apparatus, and reading apparatus
A driving mechanism for a carrier can prevent drive transmission units used for reciprocation of the carrier from becoming damaged, dented, or deformed even when an apparatus receives vibration or impact from the outside. The driving mechanism includes first and sec...
02/22/2011
7870805Rack-and-pinion steering apparatus
A rack-and-pinion steering apparatus in which a steering gear box for transmitting an operation of a steering wheel to road wheels includes a pinion operatively connected to the steering wheel, a rack bar which has a rack meshing with the pinion, and which is operat...
01/18/2011
7849757Linear feedback device for an actuator
A linear feedback device for an actuator comprises: a coiling belt, a return gear wheel, a driven member, and a sensing feedback device. The sensing linear feedback device serves to feedback the displacement data of the driven member that is moveable along a predete...
12/14/2010
7775135Mesh control for a rack and pinion steering system
A steering mechanism is provided, including a rack, a rotatable support member, and an automatically-adjustable support member. The rack includes a rack gear portion and the pinion includes a pinion gear portion coupled with the rack gear portion. The rotatable supp...
08/17/2010
7721617Heat-treated rack bar
A method of heat-treating a rack bar includes a step of continuously conveying a rack bar provided with a rack teeth portion and a ball screw portion by a quenching means, and a step of sequentially applying a quenching treatment to each circumferential surface of t...
05/25/2010
7717009Rotary damper
A rotary damper includes an operating part mounted in an interior in a vehicle in such a manner that the operating part can be introduced or withdrawn, an operating part case that guides a path of the operating part, a pinion gear mounted to one side of the operatin...
05/18/2010
7677125Rack and pinion stabilizer system
A rack and pinion stabilizer system for a refrigerator drawer. The rack and pinion stabilizer system comprises a pair of drawer glides attached to first and second liner walls of a refrigerator. Each of the drawer glides has an attached rack gear with at least one t...
03/16/2010
7669498Self-adjustable and cross-chamber transmission system
A transmission system includes two or more independent chambers, in each of which shafts with gears thereon are provided for rolling in synchronous motion, and a carrier with adjustable gear devices on a bottom thereof. Each of the adjustable gear devices has a base...
03/02/2010
7631571Yoke assembly for a power steering apparatus
A rack and pinion steering system including a rack slidably supported within a housing that engages in a pinion gear. A yoke assembly, including a yoke member engaging the rack, operates to guide the rack and maintain engagement of the rack and pinion during operati...
12/15/2009
7614317Rack-and-pinion gear mechanism
The invention relates to a rack-and-pinion gear mechanism (1), for example for use in a steering mechanism of a motor vehicle, and to a method for the production of the rack-and-pinion gear mechanism (1). The mechanism comprises a housing (101),...
11/10/2009
7441475Rack-and-pinion steering system, in particular for light commercial vehicles
A rack-and-pinion steering system, in particular for lighter commercial vehicles, has a housing, a toothed rack, a driven element and a servo unit. The driven element is arranged between the toothed rack and the servo unit. ...
10/28/2008
7430937Rack and pinion stabilizer system
A rack and pinion stabilizer system for a refrigerator drawer. The rack and pinion stabilizer system comprises a pair of drawer glides attached to first and second liner walls of a refrigerator. Each of the drawer glides has an attached rack gear with at least one t...
10/07/2008
7413163Rack and pinion wheel drive for an industrial sliding blade damper
This invention discloses improvements to a damper of the type used in industrial applications to open and close ducts carrying noxious or corrosive materials, such as combustion by-products. The improvements include a linear rack and wheeled pinion system to raise a...
08/19/2008
7367421Rack and pinion type power steering apparatus
A rack shaft is supported at three positions including a gear housing receiving an engagement portion between a rack gear and a pinion near one end in an axial direction with respect to a rack housing corresponding to a support body thereof, a housing near the other...
05/06/2008
7334312Method of forming axles with internally thickened wall sections
A method for forming a variable wall thickness axle or tube with internally thickened wall sections comprises extruding a tubular metal blank within an elongated die. An elongated punch pushes the blank through the die. The punch has an end abutting and pushing the ...
02/26/2008
7309073Steering system
A rack shaft has a rolling contact surface on the opposite side of rack teeth across an axis line X, and a pair of slanted surfaces extending in parallel with the axis line across the rolling contact surface. Furthermore, a roller rolling on the rolling contact surf...
12/18/2007
7305901Rack-and-pinion steering
A rack-and-pinion steering system, in particular for a motor vehicle, has a steering housing and a pinion which is inserted into the steering housing If. A rack whose toothing engages with the pinion is mounted so as to be axially displaceable in the steering housin...
12/11/2007
7281444Rack and pinion gear yoke assembly
This invention relates to a yoke assembly (156) adapted for use in a rack and pinion steering gear assembly (10) for a vehicle. The yoke assembly (156) includes a yoke housing (302) having a bore (304). The bore (304) define...
10/16/2007
7275456Method of production rack guide base body in rack-and-pinion type steering device and rack guide
A rack guide includes a rack guide base body which has on its outer peripheral surface a pair of semicylindrical surfaces and a pair of planar surfaces each located between the pair of semicylindrical surfaces, has a concavely recessed surface located on one axial e...
10/02/2007
7270029Passive entry side door latch release system
A vehicle passive entry side door latch release system engageable with a release cable connected a door latch includes a moveable linkage assembly engageable with the cable, and a motor including an output shaft engaged with a tensioning gear for driving a ratchetin...
09/18/2007
7267026Bicycle control device
A bicycle control device is disclosed having a control lever that is operable in a first direction to operate the brake control mechanism, a second direction to operate the shift control mechanism in the pulling direction and a third direction to operate the shift c...
09/11/2007
7260364Reverse mounted micro-speaker assemblies and mobile terminals including the same
Micro-speaker assemblies and mobile terminals including micro-speaker assemblies are provided. The micro-speaker assembly includes a micro-speaker positioned in a housing. A low frequency back tuning volume is adjacent a front face of the micro-speaker and a high fr...
08/21/2007
7258035Rack and pinion steering device
The invention relates to a rack and pinion steering device having a rack (1) which is arranged in a housing (4) and is connected at both ends to the steerable wheels via track rods (6) and steering arms, and having a pinion (2) which enga...
08/21/2007
7258034Rack bar of power steering gearbox
Disclosed is an apparatus for protecting impact to a rack bar of a power steering gearbox comprising an oil pressure cylinder, to which oil which has passed through an oil pressure pump and a rotary valve is supplied through a left port or right port, a rack bar dis...
08/21/2007
7252618Rack and pinion transmission for a pintle valve
A rack and pinion gear train actuator for a pintle valve. A motor shaft has a pinion gear that engages a large reduction gear having an integral hub gear. The hub gear is a planet gear for a ring gear segment that pivots on a shaft and includes a pinion gear segment...
08/07/2007
7240762Electric power steering apparatus
A gearing radius of a worm wheel is set corresponding to a neighborhood region of a steering neutral position, in such a way as to be relatively large. Thus, backlash is made to be relatively small. This prevents noises from being produced when an automobile travels...
07/10/2007
7240351Tray carrying-in starting mechanism for disk drive
A tray carrying-in starting mechanism for a disk drive is simple and reduces a load at the start of carrying-in of the tray. The tray carrying-in action is started by pushing a tray that has been carried out to a disk exchange position. The starting mechanism compri...
07/03/2007
7225522Method for producing rack and pinion gear yoke assembly
A method for producing a yoke assembly (306, 406, 506, 606) adapted for use in a rack and pinion steering gear assembly (10) for a vehicle includes providing a yoke housing (302, 402, 502, 602), and a yoke cap (310) having a side-wall (
06/05/2007
7225541Method for producing hollow rack bar
A method for forging a rack bar from a blank pipe. Prior to the rack forging process, a blank pipe is subjected to a process for obtaining an adjustment of a cross-sectional shape of the blank pipe. Such a preliminary adjustment is constructed by a swaging process f...
06/05/2007
7222374Head gear fitting system
According to one embodiment of the invention, a fitting system for a helmet is provided. The fitting system includes a belt having supported racks coupled to a belt adjustment device. The belt adjustment device is operable to allow a user to tighten the belt, and re...
05/29/2007
7216878Steering column retainers for children's ride-on vehicles
A children's ride-on vehicle and a method of connecting a steering column to the vehicle. The vehicle includes a body and a plurality of wheels. The vehicle also includes a steering assembly configured to steer at least one steerable wheel. The steering assembly inc...
05/15/2007
7210368Ultrasonic welded plastic retainer to secure yoke plug adjustment
The toothed rack steering gear has an adjusting nut and a housing. An opening with internal thread of the housing is adapted to the adjusting nut and receives the adjusting nut in the assembled state. In the housing at least one recess is provided in direct proximit...
05/01/2007
7210365Guide section with toothed rack
A guide section (1) for guiding a slide for a power tool along a longitudinal axis (A) with a separate axial toothed rack (3) for longitudinal advance of the slide having the toothed rack (3) arranged in an outwardly open receiving groove (4
05/01/2007
7207231Rack gear and method of making same
A rack (20) for a rack and pinion steering system (10) includes a fully dense powder metal rack tooth section (50) joined, by sintering, to a hollow rack tube (30). The rack tooth section (50) is formed by pressing powder metal (
04/24/2007
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