Did You Know...
...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.
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| Number | Title | Issue Date |
| 7278810 | Grommet A grommet for an opening of a sheet member includes a shank, a head and at least a flexible locking tab. The shank includes, in a region adjacent the head and outside the locking tab, a shoulder to be placed below an edge of the opening when the shank is rotated an ... | 10/09/2007 |
| 7234866 | Linear sliding guide, in particular for inter-adjustable components of office chairs A linear sliding guide comprises a longitudinal guide rail with guide flanks that extend in a direction of sliding and a bearing block that lodges therein and has corresponding counterpart flanks. Compensation-for-play spring assemblies are provided between these tw... | 06/26/2007 |
| 7204379 | Crane A crane has at least one telescopic crane arm with at least two sliding arms that are moveable against each other. At least one gliding element, which is housed in a frame in a detached and unfastened manner, is arranged between the sliding arms. The gliding element... | 04/17/2007 |
| 7156558 | Linear motion drive system The linear motion drive system is capable of automatically remove a clearance between a moving body and a linear shaft when the moving body and/or the linear shaft is abraded. The linear motion drive system comprises: the moving body linearly and reciprocally moved ... | 01/02/2007 |
| 7144160 | Hydrodynamic bearing apparatus and stage apparatus using the same A plurality of preload magnet units are arranged on each side of a hydrodynamic bearing symmetrically. Preload magnet units are arranged inside a labyrinth partition to surround the hydrodynamic bearing in a non-air atmosphere. ... | 12/05/2006 |
| 7044640 | Bearing unit, and motor using same A bearing unit is provided which includes a shaft (51) to support rotatably, radial bearing (55) to support the shaft (51) circumferentially, a thrust bearing (66) to support the shaft (51) in the direction of thrusting, and a hous... | 05/16/2006 |
| 6964521 | Compliant linear bearing A bearing outer shell encases a self-lubricating polymeric bearing pad material concentrically therein. A helical spring applies a force through from the outer shell, through the bearing pad material, and onto a shaft when the bearing is installed on a shaft. An ela... | 11/15/2005 |
| 6941864 | Method to control optimized cutting of stock to satisfy a cut list A method of processing material involves cutting pieces of material pursuant to a cut list and managing remaining salvage and defect pieces. A computer may be connected to a saw machine, and programmed to optimize cutting of stock to satisfy a cut list. An operator ... | 09/13/2005 |
| 6540402 | Hydrostatic guidance of moving lathe carriage A hydrostatic guidance system for the torch carriage used in an MCVD system has a plurality of air bearings mounted on the carriage and a pressurized fluid manifold device for routing pressurized fluid, such as air, to the several air bearings. The severa... | 04/01/2003 |
| 6447166 | Linear bushing A linear bushing attachable to a structural member is formed of a tubular body having a tail part and a lead part forward of said tail part, the tubular body defining a cylindrical wall about a central longitudinal axis and having inner and outer surfaces... | 09/10/2002 |
| 6427552 | Rack and pinion steering gear with spring and relief pocket A rack and pinion steering gear (10). The rack and pinion steering gear (10) comprises a housing (12) having a chamber (18). A portion of the chamber (18) is a relief pocket (22). A pinion gear (26) is rotatably mounted in the chamber (18) of the housing ... | 08/06/2002 |
| 6315449 | Compliant hydrostatic guidance of moving lathe carriage A hydrostatic guidance system for a moving carriage upon a lathe bed or other such machining has a plurality of fluid, preferably air bearings mounted on the carriage and a pressurized fluid manifold device for routing the pressurized fluid to the air bea... | 11/13/2001 |
| 5664888 | Zero clearance bearing A bearing for supporting a load for axial and rotational motion relative to a shaft is disclosed as including an outer shell having a cylindrical inner wall supporting a plurality of circumferentially spaced arcuate bearing pads for engaging the shaft. Ea... | 09/09/1997 |
| 5553945 | Linear guiding apparatus for guiding an object A linear guiding apparatus for guiding an object, comprising a rail system and a first partial group of object-guiding rail runner elements primarily responsible for the guiding precision of the object, which first partial group comprises at least one gro... | 09/10/1996 |
| 5538366 | Accelerator ring A wear ring constructed for use with a pneumatic tube system carrier of a type having two spaced apart wear rings positioned near the axial ends of the carrier. The wear ring is comprised of a rigid, yet flexible, annular support member having an outer cy... | 07/23/1996 |
| 5494353 | Radial bearing assembly A bearing body is provided with first roller bodies such that a shaft may be rollably bearing-mounted on the surface of the first roller bodies, for centering the shaft such that the shaft is shiftable along the shaft axis, rotatable about the shaft axis,... | 02/27/1996 |
| 5349731 | Temperature compensated and shock resistant machine tool A machine tool comprises a frame; a work holder operably associated with the frame; at least one carriage disposed on the frame and movable along an axis; at least one tool disposed on the carriage for operating on a work piece disposed in the work holder... | 09/27/1994 |
| 5314254 | Stiffness enhancer for movable stage assembly A stiffener assembly which provides for improved performance of a movable stage arrangement. Often, it is desired to provide a movable stage arrangement in which a stage moves linearly with respect to a stationary base. In many applications, it is necessa... | 05/24/1994 |
| 5273381 | Ball screw guide unit and transporting table using the same In the ball screw guide unit of the invention, since a guide rail is formed of a channel bar having a groove, and a ball screw shaft is engaged with a movable member which is reciprocatively movable in the groove along a lengthwise direction of the guide ... | 12/28/1993 |
| 5129733 | Device for preloading a guided machine part The invention contemplates use of a suction bell to enhance the loading with which a guided machine part is gravitationally supported on its guide. In application to a machine in which the machine part is movably supported on air bearings, the suction bel... | 07/14/1992 |
| 5074676 | Rod guide member A rod guide member includes a base portion having integral attachment means for securement to a sheet metal panel and a pair of integral legs which receive a rod member therebetween. One leg member is thicker than the other to withstand lateral loads impo... | 12/24/1991 |
| 5051000 | Linear compensating bearing A bearing construction interposes the coils of one or more coil springs between bearing surfaces. In one embodiment a bearing coil spring is wrapped around a shaft several times. The bearing coil spring may be freely mounted on a more substantial race coi... | 09/24/1991 |
| 4986674 | Vehicle accessory glide apparatus A glide apparatus for an assembly, such as a vehicle interior accessory, includes a first member disposed for slidable relative movement with respect to a second member. The first member has a longitudinally-extending, generally channel-shaped portion def... | 01/22/1991 |
| 4812101 | Method and apparatus for continuous throughput in a vacuum environment Disclosed is a method and apparatus for continuous introduction and exit of workpieces into and out of a vacuum. A first seal is provided between the atmosphere and a first pumping station. This seal comprises compliant members positioned within cavities ... | 03/14/1989 |
| 4753540 | Mounting structure of a linear motion rolling contact bearing assembly A mounting structure for mounting a linear motion rolling contact bearing assembly using a bolt extending through a mounting hole provided in a guide rail and/or a slider member of the bearing assembly includes a mounting area which is defined by a slit, ... | 06/28/1988 |
| 4749282 | Hydrostatic supporting device A hydrostatic apparatus for supporting a collared shaft bearing face which xially translates creating thrust force on a button bearing face wherein the button bearing is radially supported and fluidly sealed by two separate means. This arrangement avoids s... | 06/07/1988 |
| 4722150 | Sliding door guide A slider (41) for guiding the top of a sliding door (12) in a channel (42) comprises spaced cheeks (56) between which extends a rib (59) which engages one side of the channel, and flexible tongue (60) which flexes between the cheeks and is thereby biased ... | 02/02/1988 |
| 4716780 | Telescopic steering mechanism for automotive vehicle A telescopic steering mechanism for automotive vehicles includes first and second support members telescopically coupled with each other for relative movement, a first shaft rotatably carried by the first support member, a second shaft rotatably carried b... | 01/05/1988 |
| 4705491 | Telescopic guide, especially for transmittance of torque A telescoping torque transmitting shaft comprising a shaft having at least three longitudinally extending circumferentially spaced guide grooves and a sleeve axially slidably surrounding the shaft and having an inner counter groove opposite each guide gro... | 11/10/1987 |
| 4687296 | Optical pickup An optical pickup of the invention has an objective lens holder holding an objective lens, a support shaft which supports the objective lens holder such that the holder is slidable along the axial direction and pivotable about its axis, and a press member... | 08/18/1987 |
| 4648725 | Guide mechanism A device for guiding movement of a stage, carrying thereon a semiconductor wafer, for printing in a reduced scale an integrated circuit pattern of a mask onto different portions of the semiconductor wafer through a reduction production lens, includes line... | 03/10/1987 |
| 4647225 | Support and guide roller for extension guide The support and guide roller for extension guides for drawers consists of a roller body of hard material whose outer surface forms a first bearing surface. A circumferential slot is arranged in the area of the first bearing surface. The slot is filled wit... | 03/03/1987 |
