...that "patent leather" got its name because the process of applying the polished black finish to leather was once patented?
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| Number | Title | Issue Date |
| 7267024 | Gear, and method and apparatus for manufacturing the same An idler gear having a part worked by cutting is formed such that a chamfer part is formed at least on a portion between a tooth shape and chamfers are formed on the tooth shape by a forging process on an outer peripheral surface and an end part thereof in an axial ... | 09/11/2007 |
| 7263909 | Drive device The present invention is electronically driven locking device for a locking element of a motor vehicle. The device has a motor, a gear wheel including a gear ring, a hub, and an elastic intermediate element, and a control disk. The motor is linked to the gear ring v... | 09/04/2007 |
| 7155824 | Method of manufacturing an automotive differential having an input pinion A method for fabricating an input pinion for an automotive differential that includes: providing a shaft; forging a pinion with a plurality of teeth such that each tooth is formed to at least a near-net size, forming a hole in the pinion, pressing an end of the shaf... | 01/02/2007 |
| 6997079 | Gear mechanism with an idler gear, a gear mechanism with a device for eliminating backlash between gears, and a motor driving mechanism A gear mechanism includes a driving gear, a driven gear, and an idler gear which is in mesh with the driving gear and the driven gear, wherein rotation of the driving gear is transferred to the driven gear via the idler gear. The idler gear includes first and second... | 02/14/2006 |
| 6553868 | Gear supporting structure and hybrid driving unit employing gear supporting structure A gear supporting structure is designed to support two gears on a shaft with a short axial supporting span and without eccentricity or inclination. In this gear supporting structure wherein a first gear and a second gear are supported by a shaft in whirl-... | 04/29/2003 |
| 6508140 | Gear-motor closing-part drive for a motor vehicle and associated method for manufacturing the drive In a very simple production and assembly process, reliable stop absorption between a drive-side gear wheel (1) and a driven-side carrier (2) is obtained when there is a mutual relative movement between the gear wheel (1) and the carrier (2) that is caused... | 01/21/2003 |
| 6446523 | Combination gear having a gear slipping-off preventing structure A combination gear having a gear slipping-off preventing structure with an easier combining operation is provided, which includes: a first gear having a shaft hole; a second gear, having a shaft hole, to coaxially couple with the first gear so as to const... | 09/10/2002 |
| 6422348 | Transmission wheel, method for manufacturing transmission wheel and self-winding wheel train structure having transmission wheel A transmission wheel comprises a gear having a hole and a pinion having a plurality of teeth and being removably mounted in the hole of the gear. The hole of the gear has at least one chord-shaped stop portion engaging two adjacent teeth of the pinion to ... | 07/23/2002 |
| 6324930 | Gear assembly A gear assembly having a body member with an end wall interconnecting a cylindrical inner wall and a cylindrical outer wall so as to define an annular cavity. The gear assembly also includes a gear ring having a hub segment mounted on and fixed to the out... | 12/04/2001 |
| 6036077 | Friction welded shaft Shaft, for the transmission of torque, comprising first and second engagement elements. The shaft is divided in its longitudinal direction into a first and second section, wherein the first and second sections are concentrically joined to each other by a ... | 03/14/2000 |
| 5836216 | Flywheel or inertial mass device for a motor vehicle, the flywheel having indentations as toothing of a planetary gear train An inertial mass device is realized with at least two inertial masses which can rotate relative to one another, one of which is connected to a hub disc which is effectively connected to elastic elements of a damping device and preferably with its radially... | 11/17/1998 |
| 5832780 | Compact reduction gear with two reduction stages A reduction gear with two reduction stages including a first reduction stage consisting of a wheel and worm screw system. The system has a screw and a first wheel. A second stage includes a pinion meshing with a second toothed wheel. The wheel of the whee... | 11/10/1998 |
| 5806373 | Gear and method for manufacturing same A method for manufacturing a gear, which may be utilized as a side gear in a vehicle differential, with the method including the steps of selecting a first billet of low carbon steel and producing an annular gear wheel therefrom, and selecting a second bi... | 09/15/1998 |
| 5768943 | Substrate for an electrophotographic photoconductor A cylindrical tubular substrate for an electrophotographic photoconductor is made of a conductive resin. The substrate is smoothly rotatable about its axis of rotation, securely grounded, and easily and inexpensively manufactured. It has a cylindrical tub... | 06/23/1998 |
| 5515607 | Method of manufacturing a timepiece wheel A method for manufacturing a timepiece wheel having a bearing portion integrally formed with a pinion and gear wheel. A strip of material is compressed to simultaneously form a thin gear, a pinion and bearing surfaces. The formed gear is then sheared from... | 05/14/1996 |
| 5483847 | Transmission countershaft assembly A vehicular transmission is provided with an improved rotary countershaft assembly (100) that eliminates the prior art practice of securing countershaft gears (10) and (12) to adjacent sections (S1) and (S2) of a countershaft (2) by ... | 01/16/1996 |
| 5452622 | Stress dissipation gear A gear is comprised of a central radial hub, a radial gear-toothed rim and a stress dissipating structure.... | 09/26/1995 |
| 5363714 | Gear product The present invention provides a novel gear product including plural gear members of different tooth profiles and configurations, which are manufactured integrally through forging process. The forged gear product of the invention is compact and light in w... | 11/15/1994 |
| 4967617 | Composite shaft with integral drive elements A hollow shaft composed of individual tube portions and provided with cams and end pieces, the individual tube portions preferably being interconnected by plastic expansion of the inner elements and elastic expansion of the outer elements. It is also poss... | 11/06/1990 |
| 4829842 | Spur gearing for the driving of a roller shell Spur gearing including an outer gear rim firmly attached to the roller to be driven. A first self-aligning bearing disposed within the outer gear rim mounts the gear rim to a firm support. A pinion outside of the outer gear rim meshes with the outer gear ... | 05/16/1989 |
| 4676117 | Spur-gear system The invention relates to a spur-gear system for driving a roll shell which bears an outer gear-wheel on one of its ends. The roll shell and the outer gear-wheel are monted via a common self-aligning bearing which is disposed concentrically within the oute... | 06/30/1987 |
| 4646887 | Gear drive apparatus A gear drive apparatus is provided which includes a rotatable drive shaft, a driving member, a driven member and a pinion gear. The rotatable drive shaft contains a handle and a stem. The driving member is integrally connected to the stem and rotates with... | 03/03/1987 |
| 4463683 | Rack and pinion drive trolley with slip-ring drive wheel A motor-driven overhead trolley conveyor is described which comprises a rail having horizontal sections and inclined sections. Rack sections or chain sections are associated to the inclined sections. Each trolley comprises its own drive motor. In the hori... | 08/07/1984 |
| 4302984 | Roller bearing assembly A roller bearing assembly including a surface of a shaft serving as an inner race for rolling bodies, the surface having a diameter smaller than the outer diameter of a gear formed integrally with the shaft, a cylindrical outer race of a larger inner diam... | 12/01/1981 |
| 4193321 | Cam arrangement This invention relates to a cam arrangement which includes a cam means, having a camming surface, and a first end face, and a cam support means, having a first end face. The two end faces are disposed adjacent to and in contact with each other, and means ... | 03/18/1980 |
| 4187735 | Helical drive trains which eliminate the need for thrust bearings A method and apparatus for eliminating end thrust and consequently the need for thrust bearings in a helical drive arrangement is disclosed. According to this invention, a helical gear and a spur gear having the same pitch diameter and center of rotation ... | 02/12/1980 |
| 4152682 | Fine tuning mechanism in a tuner A tuner for use in a telecommunication receiver having a rotary drum carrying a plurality of oscillation coils and a fine tuning member for each coil supported for movement inside of the coil for fine tuning and having a geared head, and a main shaft on w... | 05/01/1979 |
| 4072063 | Engine cranking adapter An engine cranking adapter having a plurality of different pinions for selective use with any one of a plurality of different engine cranking ring gears. The adapter is mounted to a wall portion of the engine structure adjacent the periphery of the ring g... | 02/07/1978 |
| 4055092 | Safety device for gear wheels A gear wheel is provided with a safety release disc adjacent one face thereof, said disc having teeth formed as direct extensions of the gear wheel teeth. The disc teeth engage the same gear element as the teeth of the gear wheel but the disc is rotatable... | 10/25/1977 |
| 4042434 | Bonded gear assembly A method is disclosed for firmly bonding together driving and driven gears. Bonding is accomplished by placing a thin layer of a thermal setting resin between the web faces of gears that are joined together by a multiplicity of spaced apart fasteners. The... | 08/16/1977 |
| 4033198 | Device for reducing noise in gear wheel couplings, with a high safety degree A highly safe device for reducing noise produced in gear wheel couplings in the motion transmission and distribution lines of wrapping and packeting machines operated at very high output speed. Two co-axial and opposite gears have the same number of angul... | 07/05/1977 |
| 3942918 | Rotor and gear assembly for rotary mechanisms An improved rotor and gear assembly for rotary mechanisms of the trochoidal type, in which a rotor having a central bore is mounted for rotation on a shaft, and an internally toothed ring gear is secured to a side face of the rotor for engagement with a s... | 03/09/1976 |