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| Number | Title | Issue Date |
| 7191711 | Shafting especially a cardan shaft and homokinetic bogie drive system for rail vehicles A shafting, particularly a cardan shaft for rail vehicles, has two cardan joints (4,5), each of which comprises two link forks (7–10) coupled to one another by a central part (6). The central part (6) comprises at least two partial elem... | 03/20/2007 |
| 6679365 | Viscous Fluid Coupling A viscous fluid coupling includes a housing rotatably supported to a drive shaft of an engine. An operation plate set in the housing divides a space of the housing into a reservoir and an operation chamber. The operation plate has a communication hole com... | 01/20/2004 |
| 6599197 | Impulse torque generator for a hydraulic power wrench An impulse torque generator for a hydraulic torque wrench is durable, compact in size and capable of stably generating a large impulse torque while eliminating a blade being inserted in the main shaft. A main shaft has a cam thereon positioned to be slida... | 07/29/2003 |
| 6474458 | Viscous fluid coupling A viscous fluid coupling includes a housing rotatably supported to a drive shaft of an engine. An operation plate set in the housing divides a space of the housing into a reservoir and an operation chamber. The operation plate has a communication hole com... | 11/05/2002 |
| 6364772 | Disconnect for high-speed rotating shafts A self-actuating thermal disconnect disengages two coaxially aligned shafts if equipment driven by one of the shafts overheats. The disconnect uses the centrifugal force of a molten material as the principal actuation. The disconnect end of a drive shaft ... | 04/02/2002 |
| 6305519 | Viscous fluid coupling A viscous fluid coupling includes a housing rotatably supported to a drive shaft of an engine. An operation plate set in the housing divides a space of the housing into a reservoir and an operation chamber. The operation plate has a communication hole com... | 10/23/2001 |
| 6299538 | Differential-speed-controlled transmitting coupling A coupling for transmitting torque between two parts which are rotatable relative to one another, which coupling comprises a friction coupling whose friction plates are each non-rotatably connected to the one and to the other of the parts which are rotata... | 10/09/2001 |
| 6110045 | Hydraulic torque impulse generator A hydraulic torque impulse generator (16) of the kind having a motor rotated drive member (18;50) formed with a fluid chamber (19;53), an impulse receiving output member (20;51) coaxial with the drive member (18;50) and extending into the fluid chamber (1... | 08/29/2000 |
| 6033310 | Variable length drive shaft A variable length light weight drive shaft for a rolling mill roll including: a driven first end including a universal joint connecting with an end of a male splined shaft having an axial bore and counter bore and a driving second end including a universa... | 03/07/2000 |
| 5133419 | Hydraulic shock absorber with nitrogen stabilizer A shock absorber device for inclusion in a tool string to provide rapid shock dissipation for shock forces traveling up or down the string. The device includes a tubular mandrel and an outer casing that forms an annular chamber therearound. At least one a... | 07/28/1992 |
| 4813524 | Assembly for damping torsional vibrations An assembly for damping torsional vibrations in the power train between the crankshaft of the engine and the input shaft of the change-speed transmission in a motor vehicle has two flywheels which are rotatable relative to each other against the oppositio... | 03/21/1989 |
| 4789373 | Hydraulic torque impulse generator A hydraulic torque impulse generator comprises a motor rotated drive member (16) including a fluid chamber (18) into which the rear end portion (19) of an output spindle (21) extends to receive torque impulses generated in said fluid chamber (18). The rea... | 12/06/1988 |
| 4734080 | Rotary-elastic, oscillation-damping shaft coupling A rotary-elastic oscillation-damping shaft coupling includes a fluid damping arrangement. Transmission of torque from the primary part to the secondary part is accomplished by a disk-like coupling part which extends approximately perpendicular to the axis... | 03/29/1988 |
| 4624650 | Torsional vibration absorber device A torsional vibration absorber device is positioned between two relatively rotatable members. A coupling member has a projection engaging a camming surface on one of the members, the camming surface being slanted circumferentially with respect to the axia... | 11/25/1986 |
| 4427398 | Device for coupling and uncoupling two parts movable relative to each other using a length-variable guide rod A device for coupling and uncoupling two parts which are movable relative to each other, particularly parts of the drives of vehicles, for instance for high-speed power vehicles, by means of a length-variable guide rod. On the tubular guide rod segment th... | 01/24/1984 |
| 4333319 | Universal joint assembly A universal joint assembly which includes a first and a second yoke operatively interconnected by a trunnion cross arranged therebetween is formed with a generally centrally located bore extending through the trunnion cross between the first and the secon... | 06/08/1982 |
| 4204413 | Torque limiting drive shaft assembly The disclosure pertains to a drive shaft for machines such as roller levellers for processing steel strip. The shaft is made up of outer and inner members, the latter driving the former. Between the members is provided a frictional driving surface such as... | 05/27/1980 |
| 4055338 | Drill string shock absorbing apparatus Apparatus is disclosed for use in a drill string during rotary well drilling, especially of shallow holes such as blast holes, to absorb the shock loads imposed upon the drill bit and drill. A floating solid piston in an outer tubular body separates a gas... | 10/25/1977 |
| 4003219 | Hydraulically operated retractable spindle A retractable spindle for connecting a drive to a driven instrumentality, such as a roll. The spindle includes an axially movable shaft which has self-contained hydraulic means for moving it axially to disconnect it from the driven instrumentality or conn... | 01/18/1977 |
| 3998443 | Multidirectional shock absorbing device A housing with a mandrel therein is adapted to be connected in a rotary drill string. The housing and mandrel are constructed and arranged to support the work load of the rotary drill string as well as dissipate both longitudinal and radial impact or shoc... | 12/21/1976 |
| 3963228 | Drill string shock absorber In accordance with an illustrative embodiment of the present invention as disclosed herein, a shock absorber adapted to be incorporated in a drill string includes axially splined housing and mandrel members having a helical coil spring reacting therebetwe... | 06/15/1976 |
