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| Number | Title | Issue Date |
| 8096205 | Gear A gear comprised of a tooth surface and a hard carbon film formed on at least a part of the tooth surface. When the gear is used in lubricant including a specific component, a friction of a tooth surface of the gear is largely decreased, and therefore the gear perfo... | 01/17/2012 |
| 7138572 | Peg for stringed instruments The present invention provides a peg for stringed instruments, which can reduce rotational errors of a worm gear due to a backlash caused during tuning of a string as low as possible. The peg is also possible to reduce the friction at each rotational portion, to pre... | 11/21/2006 |
| 7025701 | Oil propeller wheel and shaft for power transmission devices A power transfer device includes a casing, a lubricant reservoir in the casing having lubricant therein, and a shaft rotatably supported in the casing. The shaft extends into the lubricant reservoir. A lubricant driving structure is coupled to the shaft for common r... | 04/11/2006 |
| 7022039 | Lubrication system for planetary transmission A planetary transmission includes a first gear set including a first sun gear and at least one first planetary gear in meshing arrangement with the first sun gear, a second gear set including a second sun gear and at least one second planetary gear in meshing arrang... | 04/04/2006 |
| 6964155 | Turbofan engine comprising an spicyclic transmission having bearing journals A planet gear journal for an epicyclic gear system is asymmetrically formed to compensate for carrier twist. The asymmetry may be between a pair of opposed outwardly open annular channels inboard of a bearing surface of the journal. A particular application is the p... | 11/15/2005 |
| 6236934 | Electromagnetically actuated rotating machine unbalance compensator An electromagnetically actuated machine balancer including a plurality of peripherally placed magnetic circuits and a power driver which selectively interrupts the magnetic flux through the circuits, thereby moving unbalanced rotors in a desired manner to... | 05/22/2001 |
| 6223616 | Star gear system with lubrication circuit and lubrication method therefor A star configured epicyclic gear train includes a sun gear 10, a plurality of star gears 16 supported on bearings 18, a ring gear 51 and a set of baffles 44 disposed between the star gears. A single lubricant circuit serves as the exclusive means for supp... | 05/01/2001 |
| 6089113 | Screw for operation at high speed and high load A corresponding pair of male and female screw members includes alternately disposed rising and falling sloped surfaces on threads of the male and female screw members along a sliding direction of the threads. Depressions and projections are disposed conti... | 07/18/2000 |
| 5865699 | Coated chain saw nose sprocket A nose sprocket for chain saws includes an inner peripheral surface defining a bearing race, and teeth disposed at an outer peripheral portion of the nose sprocket. Side surfaces of the nose sprocket are provided with a vapor-deposited low-friction coatin... | 02/02/1999 |
| 5622239 | Gear wheel lubricator An apparatus to lubricate a main component. There is an idler in contact with the main component and an inlet in the idler to receive lubricant. There is at least one outlet in the idler at a point where the idler contacts the main component. A passageway... | 04/22/1997 |
| 5556351 | Differential apparatus A differential apparatus includes a differential casing (21) rotated by an engine drive power; pinion gears (51, 53) slidably and rotatably accommodated in accommodating holes (47, 49) formed in the differential casing (21); a pair of side gears (31, 33) ... | 09/17/1996 |
| 5507703 | Differential drive A differential drive having a differential carrier rotatably supported in a differential housing is disclosed. Two axle shaft gears are rotatably held in cylindrical bores in the differential carrier and are arranged coaxially relative to one another. A p... | 04/16/1996 |
| 5505112 | Churning loss reduction means for gear type devices A gear device such as a change gear transmission of the countershaft (21) type in which, mounted for rotation about the countershaft is a larger gear (17) and a smaller gear (29). The transmission housing (11) defines a first lubricant reservoir (R1), hav... | 04/09/1996 |
| 5493930 | Toothed gearwheel with centrifugal force lubrication A gearwheel has a coaxial trough which is closed by a first lid to form an inner storage chamber for grease and is also closed by a second lid to form an outer storage chamber. The circumferential surfaces of the first and second lids sealingly adjoin the... | 02/27/1996 |
| 5472383 | Lubrication system for a planetary gear train A lubrication system for a planetary gear train (6) includes oil spray bars (32) intermediate each pair of planet gears (10). Oil exits the meshes between the sun gear 8 and the planet gears (10) and between the planet gears (10) and the ring gear (18) wi... | 12/05/1995 |
| 5379662 | Gear lubrication A self-lubricating gear (20) has a deep circumferential groove (30) closed by an O-ring (42) seated on a shoulder (40) of the groove. Teeth (36) of a meshing gear (38) squeeze the O-ring and release small quantities of lubricant contained in the groove to lubr... | 01/10/1995 |
| 5288556 | Gears and gear assemblies Improvements in gears and gear teeth structures for use in driving assemblies, such as machines, vehicles and the like, wherein the teeth portions of the gears and, in certain instances, other portions thereof, are coated with a hard synthetic diamond mat... | 02/22/1994 |
| 5263552 | Automatic lubrication system for an industrial rotary drive Apparatus and method for automatically and continuously lubricating a rotary drive of an industrial drive such as a pump, roll, or other driven member is disclosed. The apparatus includes a rotary drive coupling assembly that is connected between an input... | 11/23/1993 |
| 5251725 | Lubrication of power drive comprising large diameter gear A lubricator for large diameter open gearing utilizes a header having a series of orifices which direct streams of oil onto a deflector plate which produces a spray directed at the teeth of a drive pinion in close proximity to the point of first engagemen... | 10/12/1993 |
| 5242033 | High power gear cooling system A cooling system for a high speed gear includes a plurality of passages extending through the gear and a hydraulic slip ring for delivering cooling fluid to the passages and for scavenging cooling fluid after it passes through the passages. The slip rings... | 09/07/1993 |
| 5203224 | Gear for use in vacuum space The peripheral teeth of a gear body are made of alloy tool steel and coated with a manganese-phosphate-treated layer and then with a solid lubricating film. The alloy tool steel of which the teeth of the gear body cooperates with the manganese phosphate l... | 04/20/1993 |
| 5125290 | Rack and pinion lifter 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 t... | 06/30/1992 |
| 5106672 | Structural element made of reinforced polymeric material A structural element made of a castable or extrudable polymeric material reinforced by fillers, said structural element having a contact surface in sliding engagement with another element, the structural element being provided on its contact surface with ... | 04/21/1992 |
| 5090265 | System to convert rotary motion to linear motion In a system that includes a linearly movable carriage or the like, a mechanism to convert rotary motion of a leadscrew to linear motion of a nut and, hence, linear movement of the carriage to which the nut is mechanically secured. The leadscrew has a spec... | 02/25/1992 |
| 5067357 | Coaxial type starter device A coaxial type starter device comprises an overrunning clutch device having a clutch inner member and a pinion shaft with a pinion at an end, the pinion shaft being inserted in the clutch inner member so as to be engageble therewith by helical splines for... | 11/26/1991 |
| 5064025 | Gear lubrication In an accessory drive unit e.g. as used in a gas turbine engine, some of the gears in a gear train are provided with pockets 20 in which drainage oil is collected on engine shut down. On re-starting of the engine, the collected oil is acted upon by ribs 1... | 11/12/1991 |
| 5018469 | Variable ratio steering helm A boat steering assembly (10) having a substantially circular rotary gear (12) engaging an output gear such that the leverage is varied between the output gear (16, 16') and the steering wheel (32). The steering wheel (32) has a shaft gear (28) engaging i... | 05/28/1991 |
| 4961669 | Spline connection A spline connection which comprises a spline boss having inward spline teeth; and a spline shaft engaged slidably with the spline boss and having outward spline teeth is disclosed. A header passage for a lubricant is formed along a core of the spline shaf... | 10/09/1990 |
| 4905535 | Gear wheel mechanism A hydrostatic gear wheel mechanism has two intermeshing gear wheels in the work space of a housing. To continuously rinse the gear wheel and housing surfaces which slide on each other, grooves on the gear wheel convey lubricant from the work space to betw... | 03/06/1990 |
| 4872530 | Self-lubricating centrifugal drilling mud degasser A degasser for removing contaminating gases from an aqueous fluid including a motor having a depending drive shaft, a hollow gear box casing having a lubricant inlet port formed therein adjacent the top thereof, a reduction gear arrangement comprising a s... | 10/10/1989 |
| 4836042 | System to convert rotary motion to linear motion In a system that includes a linearly movable carriage or the like, a mechanism to convert rotary motion of a leadscrew to linear motion of a nut and, hence, linear movement of the carriage to which the nut is mechanically secured. The leadscrew has a spec... | 06/06/1989 |
| 4825720 | Wide scan drive mechanism for use in a vacuum A wide scan drive mechanism for use in a vacuum, e.g. in space, comprising a motor assembly (20) associated with a gearing device (10) which comprises a drive system via triangular teeth sliding over one another, wherein the various ball bearings and tria... | 05/02/1989 |
| 4793201 | Porous static pressure guide A static pressure lead screw includes a porous ceramic body having fluid flow paths as part of a flank. The porous ceramic body is fixed by a tubular base member through which the fluid does not flow. Fluid guide holes for supplying the fluid to the porou... | 12/27/1988 |
| 4777838 | System for lubricating gear end faces A micro-contoured surface is formed about a substantial portion of the edge of the end bearing face of each gear tooth of a gear having a plurality of circumferential gear teeth each with an end bearing face for carrying an axial thrust load against a fla... | 10/18/1988 |
| 4776229 | Device for controlling the rectilinear translation of a movable member A device for controlling the rectilinear translation of a movable member, comprises a screw engaged by a nut having cooperatingly shaped thread surfaces the dimensions of which are such that there is a radial clearance between the screw and the nut and an... | 10/11/1988 |
| 4741220 | Hydrostatic pressure worm-rack devices In a hydrostatic pressure worm-rack device of the type comprising a worm formed with operating oil supply opening at the opposite flanks of respective teeth of the worm, opposite flanks of respective teeth of the rack being formed with oil pockets, there ... | 05/03/1988 |
| 4653610 | Apparatus for automatically applying lubrication in lifting device Disclosed is apparatus for automatically applying lubricant in a lifting device which raises and lowers a platform by intermeshing of pinions of a jack-up device mounted on the platform and racks provided in the longitudinal direction of legs for supporti... | 03/31/1987 |
| 4586394 | Low noise lead screw positioner A lead screw positioner (10) is described, which has extremely low noise, including a nut (12) lying about a lead screw (14) and means for flowing gas under pressure between the nut and screw to keep them slightly spaced. The nut forms a plenum chamber (3... | 05/06/1986 |
| 4573373 | Lubrication system for auxiliary equipment transmission A lubrication system with a lubricant feeding device disposed in the housing of a speed change mechanism for auxiliary devices. The lubricant flows from a central lubricant reservoir within the speed change mechanism through the moving surfaces to the inn... | 03/04/1986 |
| 4570505 | Rack lubricator A rack lubricator is bolted to a drive pinion housing. The lubricator supports a porous felt gear on a rotatable shaft. Lubricant is ported through the shaft to the inner surface of the gear, and the gear wicks the lubricant onto the rack teeth, thereby c... | 02/18/1986 |
