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| Number | Title | Issue Date |
| 4869123 | Cable length self-locking adjustment device In a cable length adjuster, a slider is guided for movement within a housing and is biased by a spring to take up unnecessary slack in the cable. A latch is moveable, normal to the direction of slider movement, and becomes engaged with teeth on the slider... | 09/26/1989 |
| 4868365 | Method for welding torque converter blades to a housing using a laser welding beam A method for welding torque converter blades to an impeller housing by laser beam welding includes forming the blades with a tab fitted within a recess formed in the impeller housing such that the blade tab stands clear of the adjacent surfaces of the hou... | 09/19/1989 |
| 4856383 | Coast clutch control for multiple speed automatic transmission A manual valve alternately connects a source of regulated line pressure to a forward drive passage and to a reverse drive passage. A shift valve alternately connects these passages to an input port of a coast clutch valve in accordance with the state of a... | 08/15/1989 |
| 4856375 | Mechanism for synchronized shifting of a transmission using couplers A tractor transmission includes a pair of dual power clutches that connects an engine to an input shaft through a gearset that selectively makes a direct connection or overdrives the input shaft in accordance with the stat of the clutches. Two nonsynchron... | 08/15/1989 |
| 4856369 | Continually variable transmission having torque regeneration operating mode A continually variable transmission includes a fluid coupling having an impeller driven from a power source and a turbine adapted to be driven hydrodynamically from the impeller or to be connected mechanically to the impeller by a lockup clutch. The turbi... | 08/15/1989 |
| 4852425 | Variable length rod assembly having locking adjustment mechanism A rod connecting mechanical attachments whose positions in space and distances between each other are variable includes a rod carrying a grommet engageable by a pin located on one of the attachments and a pin formed on an adjustable member adapted to enga... | 08/01/1989 |
| 4848548 | Synchronizing clutch for automotive multiple speed transmission In an automotive synchronizing clutch for a multiple speed transmission, a synchronizer sleeve is slidable axially on a system of spline teeth formed on the outer surface of the synchronizer hub. Internal teeth formed on the sleeve are brought into engage... | 07/18/1989 |
| 4848084 | Hydrodynamic torque converter having variable stator plate orifice A hydrodynamic torque converter includes a pump wheel, a turbine wheel, and a stator wheel having a variable entrance between the blade rows upon at least one of these wheels, preferably on the stator wheel. The opening between the blades is adjustable au... | 07/18/1989 |
| 4844480 | Pressure sensitive shaft sealing ring A radial shaft sealing ring includes an outer fastening ring reinforced by an insert for fixing the sealing ring in the bore of a casing through which a rotating shaft passes. The sealing ring includes a sealing lip directed toward the inside of the casin... | 07/04/1989 |
| 4843917 | Accumulator control for hydraulic actuating pressure of automatic transmission friction clutch or brake The time rate at which pressure increases in a friction element engaged to produce a gear shift is controlled through operation of an accumulator. Shift valves in a hydraulic circuit produce selectively a connection between hydraulic lines associated with... | 07/04/1989 |
| 4836049 | Continually variable transmission having fixed ratio and variable ratio mechanisms A continually variable transmission includes a fluid coupling having an impeller driven from a power source and connected to the input sheave of a fixed speed ratio change drive mechanism, and an impeller connected to the input sheave of a variable speed ... | 06/06/1989 |
| 4833933 | Alternate path tractor transmission having a redundant clutch A tractor transmission includes first and second hydraulically actuated disc clutches adapted to drivably connect an input shaft, which is clutched by a friction clutch to an engine, to a first and second sleeve shafts. The countershaft and the sleeve sha... | 05/30/1989 |
| 4833295 | Welding of parts separated by a gap using a laser welding beam A method for welding two portions of a cover for a torque converter at an overlap joint using a welding beam includes directing the welding beam at the radially outer cover in the vicinity of the overlap at an acute angle with the plane of the over portio... | 05/23/1989 |
| 4831228 | Electrical resistance welding guns having workpiece clamping and independent electrode biasing An electrical resistance welding gun includes a hydraulically or pneumatically actuated clamping device for forcing workpieces into contact with one another, and a device for preloading and maintaining loaded contact between welding electrodes located on ... | 05/16/1989 |
| 4827805 | Forward and reverse clutch actuation system for a belt-driven continually variable transmission In a continually variable belt-driven transmission, a system for actuating and controlling the operation of the forward clutch and reverse clutch includes a source of hydraulic pressure regulated at line pressure, an accumulator control valve, a line and ... | 05/09/1989 |
| 4821190 | Closed loop computer control for an automatic transmission In an automotive vehicle having an automatic transmission that driveably connects a power source to the driving wheels, a method to control the application of hydraulic pressure to a clutch, whose engagement produces an upshift and whose disengagement pro... | 04/11/1989 |
| 4821207 | Automated curvilinear path interpolation for industrial robots A method for generating a path to be followed by the end effector of an industrial robot includes defining the location of points on the path, recording the coordinates of the points in cartesian space, determining the slope of the path at each of the tau... | 04/11/1989 |
| 4820243 | Bearing assembly for a continually variable cone-pulley belt drive transmission A bearing assembly for a continually variable cone-pulley belt drive transmission includes a primary shaft defining a conical pulley that is rotatably mounted, and an axially displaceable conical pulley that is movable along the axis of the primary shaft.... | 04/11/1989 |
| 4818166 | Fastening a component on a shaft or in a bore against axial displacement An attachment and method for axially securing a component on the surface of a shaft or bore by forming an annular groove adjacent the component and inserting a closed retaining ring within the annular groove. The retaining ring has a larger internal diame... | 04/04/1989 |
| 4800769 | Transmission dual idler reverse drive mechanism A manually operated automotive transmission includes an input cluster shaft that carries a reverse input pinion, a countershaft rotatably mounted parallel to the input shaft, a synchronizer clutch including a clutch sleeve defining reverse output gear sli... | 01/31/1989 |
| 4799399 | Manually controlled multiple speed ratio transmission A multiple speed ratio manually controlled transmission mounted transversely with respect to the fore and aft axis of the automotive vehicle in which it operates includes a power input shaft having four forward drive gears and a reverse drive gear formed ... | 01/24/1989 |
| 4799158 | System for computer controlled shifting of an automatic transmission In an automotive vehicle having an automatic transmission that driveably connects a power source to the driving wheels, a method to control the application of hydraulic pressure to a clutch, whose engagement produces an upshift and whose disengagement pro... | 01/17/1989 |
| 4792902 | Engine ignition timing for a clutch engagement control system A system and method for controlling the ignition timing of a spark ignition internal combustion engine in a driveline that includes a multiple speed ratio transmission, at least one of whose operating speed ratios depends on the engaged or disengaged stat... | 12/20/1988 |
| 4790216 | Control valve system for a continuously variable belt driven transmission for motor vehicles A control valve system for controlling the operation of a continuously variable belt-driven motor vehicle transmission includes a first hydraulic pump that supplies fluid to the displacement cylinders of the transmission through a main pressure regulating... | 12/13/1988 |
| 4790418 | Transmission clutch loop transfer control A method for controlling the transfer of load from one friction element to another friction element while making a gear ratio change in an automatic transmission. The synchronous engine speed is increased by slipping the offgoing clutch. A constant is cal... | 12/13/1988 |
| 4772247 | Integrated fixed drive belt sheaves for a continually variable transmission A belt driven automatic transmission for producing a continuous range of drive ratios includes an input pully rotatably mounted on the axis of an engine crankshaft and an output pulley rotatably supported on the axis of the transmission output shaft. The ... | 09/20/1988 |
| 4768632 | Lockup control system for an automatic transmission torque converter In an automotive automatic transmission, a torque converter lockup control system includes a main regulator valve connected to the discharge of a hydraulic pump for supplying converter feed pressure between the plates of the lockup clutch in accordance wi... | 09/06/1988 |
| 4757886 | Transmission clutch closed loop slip controller and method A continuously variable belt-driven transmission includes a hydraulic torque converter, a variable diameter displaceable input pulley, a variable diameter displaceable output pulley, forward and reverse planetary gearing, a differential mechanism and half... | 07/19/1988 |
| 4758967 | Computer simulated inertia for motor vehicle powertrain testing The large rotational inertia applied to a driveline component during normal driving conditions is simulated in a test stand that contains a component that driveably connects an input motor and an output motor. A computer repetitively executes an algorithm... | 07/19/1988 |
| 4754659 | Quill shaft input cluster gear for manual transmission A manually-operated automotive transmission has a cluster gear on which several forward drive input gears and the reverse drive input gear are formed integrally. The cluster gear has a central bore extending its full length. An input shaft clutched to as ... | 07/05/1988 |
| 4747808 | System for actuating the displaceable pulley in a continually variable transmission In a belt driven continually variable transmission, the drive ratio is changed by varying the radial position of the drive belt by moving displaceable sheaves of a pulley assembly. A system for actuating the displaceable sheaves includes a ratio control v... | 05/31/1988 |
| 4744264 | Hollow non-singular robot wrist The end of a robot arm includes two links, a first or inner link supported rotatably about a central axis and an end link on which a tool is carried. Located between the links are a ring and a tube whose longitudinal axes are concentric. Each of four gimb... | 05/17/1988 |
| 4738153 | Manual transmission gearshift mechanism with reverse inhibitor A gearshift lock for the shift mechanism of a manually operated multiple speed ratio transmission includes a selector shaft rotatable by a gearshift lever under the control of the vehicle operator, a selector finger movable within slots formed in a base p... | 04/19/1988 |
| 4733582 | Control valve system for a continuously variable belt driven transmission for motor vehicles A control valve system for controlling the operation of a continuously variable belt-driven motor vehicle transmission includes a first hydraulic pump that supplies fluid to the displacement cylinders of the transmission through a main pressure regulating... | 03/29/1988 |
| 4727765 | Shift mechanism for manual transmission A gearshift mechanism for a multiple speed manual transmission includes a selector shaft, which is rotatable for preselecting gearshift planes and axially displaceable for engaging the selected gear; a selector finger fixed to the selector shaft selective... | 03/01/1988 |
| 4718295 | Free-wheeling gears for a multiple speed transaxle transmission A multiple speed ratio power transmission mechanism for an automotive vehicle adapted to be mounted in a transverse position with respect to the fore and aft axis of the vehicle includes a torque input shaft having input gearing fixed thereto. A first cou... | 01/12/1988 |
| 4716350 | Method to avoid singularity in a robot mechanism A method to avoid excessive rotational speeds, of the axes of a robot wrist, that result in the vicinity of a singularity in the path defined by consecutive points along which a tool held by a three-axis wrist mechanism of the robot moves. The speeds of t... | 12/29/1987 |
| 4713041 | Non-lubricated drive belt system for a continually variable transmission A belt driven automatic transmission for producing a continuous range of drive ratios includes an input pulley rotatably mounted on the axis of an engine crankshaft and an output pulley rotatably supported on the axis of the transmission output shaft. The... | 12/15/1987 |
| 4706519 | Creeper speed actuator for a tractor transmission A creeper speed mechanism includes a speed reduction gearset driven by an engine through selectively engaged, hydraulically actuated clutches, which are pressurized and vented alternately to produce a high speed ratio and a low speed ratio gear reduction ... | 11/17/1987 |
| 4706514 | Gear selector for manual transmission having reverse gear lockout The gear shift mechanism according to this invention includes a selector shaft, rotatable by means of a shift lever for selecting various gear shift channels and axially displaceable for engaging the selected gear. The selector shaft carries a shift finge... | 11/17/1987 |
