| Patents for F16D 3 - Yielding couplings, i.e. with means permitting movement between the connected parts during the drive (19,875) | 
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| 06/23/1981 | CA1103471A1 Separable three-section telescopic drive shaft | 
| 06/16/1981 | US4273209 Power transmitting device and applications thereof | 
| 06/16/1981 | US4272972 Universal joint | 
| 06/09/1981 | US4272224 Splined shaft driving arrangement | 
| 06/09/1981 | US4271947 Thermal fuze mechanical disconnect eutectic containment | 
| 06/09/1981 | US4271685 Double-ring universal joint | 
| 06/09/1981 | CA1102573A1 Slidable type constant velocity universal joint | 
| 06/03/1981 | EP0029496A2 Toothed coupling | 
| 06/02/1981 | US4270392 Low cost flexure assembly | 
| 06/02/1981 | US4270367 Spring loaded adjustable coupling | 
| 05/26/1981 | US4269570 Ceramic rotor, cushioning driving connection | 
| 05/26/1981 | US4269296 Two-stage coaxial spring damper | 
| 05/26/1981 | US4269043 Coupling for resiliently connecting two shafts for transmission of torque | 
| 05/26/1981 | CA1101832A1 Shock absorbing apparatus for drill string | 
| 05/19/1981 | US4268231 Multi-unit rotary piston mechanism and mainshaft coupling therefor | 
| 05/14/1981 | WO1981001317A1 Shaft coupling | 
| 05/12/1981 | USRE30606 Telescoping universal joints | 
| 05/12/1981 | US4266409 Energy-absorbing torque transmitter | 
| 05/05/1981 | US4265099 Flexible coupling | 
| 05/05/1981 | CA1100545A1 Seal and method for installing seal over splined shaft | 
| 04/28/1981 | US4263788 Universal joint apparatus having sliding plate construction for separating thrust and torque forces | 
| 04/22/1981 | EP0027130A1 Splined shaft seal article and apparatus | 
| 04/21/1981 | US4262499 Torsionally elastic vibration-damping mechanism | 
| 04/21/1981 | US4262498 Sealing arrangement for a universal joint | 
| 04/21/1981 | US4262405 Method for installing a bearing in a universal coupling | 
| 04/14/1981 | US4261211 Flexure joint, particularly for connecting a gyroscope to its driving shaft | 
| 04/14/1981 | US4261186 Joint structure with lubricating bores | 
| 04/14/1981 | CA1099154A1 Articulated coupling device for the boom of a sailing boat | 
| 04/14/1981 | CA1099122A1 Apparatus for prevention of coming off in universal joint | 
| 04/08/1981 | EP0026681A1 Drive shaft coupling | 
| 04/01/1981 | EP0026100A2 Shock absorbing apparatus and drill string using such apparatus | 
| 04/01/1981 | EP0025901A2 Elastic coupling | 
| 03/31/1981 | CA1098383A1 Flexible bellows end connection in a marine stern drive | 
| 03/31/1981 | CA1098339A1 Device for transmitting force from one shaft to another | 
| 03/24/1981 | US4257244 Telescopic drive shaft | 
| 03/24/1981 | US4257243 Homokinetic double joint for wide bending angles | 
| 03/24/1981 | US4257242 Resilient couplings | 
| 03/24/1981 | US4257229 Preloaded torque converter with plug-in flywheel mounting | 
| 03/24/1981 | CA1097935A1 Telescoping universal joints | 
| 03/18/1981 | EP0025403A1 Universal joint | 
| 03/17/1981 | US4255945 Tripod homokinetic joints which have axial retaining means | 
| 03/17/1981 | US4255943 Holding structure for a drive shaft in a vehicle of rear wheel independent suspension type | 
| 03/11/1981 | EP0024386A1 Movable joint seal | 
| 03/10/1981 | US4254855 Coaxial spring damper drive | 
| 03/10/1981 | US4254639 Limited sliding ball spline assembly | 
| 03/03/1981 | US4253776 Torque transmitting element and device | 
| 03/03/1981 | CA1096657A1 Actuator having universal-type joint assembly | 
| 03/03/1981 | CA1096647A1 Constant velocity, torsionally rigid, flexible coupling | 
| 02/24/1981 | CA1096188A1 Flexible coupling | 
| 02/17/1981 | CA1095733A1 Homokinetic double joint for wide bending angles | 
| 02/10/1981 | US4249395 Homokinetic universal joint assembly | 
| 02/10/1981 | US4249394 Flexible shaft coupling | 
| 02/04/1981 | EP0023480A1 Fuel injection pump timing mechanism for internal combustion engines | 
| 02/04/1981 | EP0023246A1 Elastic rotary coupling | 
| 01/28/1981 | EP0022872A1 Method of manufacturing inner race of synchronous universal joint | 
| 01/27/1981 | US4246767 Coupling for the vibration-damping transmission of torques | 
| 01/27/1981 | US4246766 Vibration-dampening flexible coupling | 
| 01/22/1981 | WO1981000141A1 Two-stage coaxial spring damper | 
| 01/21/1981 | EP0022467A1 Method of making a drive shaft | 
| 01/20/1981 | CA1093853A1 Universal joint structure with improved seal | 
| 01/13/1981 | US4244433 Safety mechanism for a raise drill | 
| 01/13/1981 | US4244240 Elastic internal flywheel gimbal | 
| 01/13/1981 | US4244196 Homokinetic joint | 
| 01/07/1981 | EP0022006A1 Universal joint | 
| 01/07/1981 | EP0020333A1 Lure for fishing | 
| 01/06/1981 | US4242889 Coupling for torque transmission | 
| 01/06/1981 | US4242888 External member for a tripod joint and method for manufacturing same | 
| 12/30/1980 | US4241800 Cutting tool for a pneumatic hammer | 
| 12/30/1980 | US4241593 Elastic shaft coupling | 
| 12/24/1980 | WO1980002867A1 Coaxial spring damper drive | 
| 12/23/1980 | US4240763 Resilient couplings | 
| 12/23/1980 | US4240680 Bearing assembly for a motor vehicle wheel | 
| 12/23/1980 | CA1091942A1 Crowned involute splines and method of making | 
| 12/16/1980 | US4238936 Universal homokinetic joint | 
| 12/09/1980 | US4237704 Oldham type coupling and pump embodying the same | 
| 12/09/1980 | US4237703 Magnetic governor drive coupling | 
| 12/09/1980 | CA1091052A1 Homokinetic transmission | 
| 12/02/1980 | US4236420 Wide-angle joint | 
| 12/02/1980 | US4236388 Separable three-section telescopic drive shaft | 
| 12/02/1980 | CA1090679A1 Vibration damper for a torque converter lock-up clutch | 
| 11/18/1980 | CA1089676A1 Gimballed coupling for lead screw and nut assembly | 
| 11/18/1980 | CA1089661A1 Slidable type constant velocity universal joint | 
| 11/11/1980 | US4232756 Motor-vehicle drive-shaft assembly | 
| 11/11/1980 | US4232563 Laminated elastomeric end bearings for articulating links | 
| 11/04/1980 | US4231233 Rigid non-sliding homokinetic universal joint | 
| 11/04/1980 | US4231232 Constant velocity universal joint | 
| 10/30/1980 | WO1980002315A1 Splined shaft seal article and apparatus | 
| 10/29/1980 | EP0018243A1 Improvements in sliding universal joints, especially for motor vehicle transmissions | 
| 10/28/1980 | US4229952 Homokinetic universal joint | 
| 10/28/1980 | US4229951 Flexible coupling | 
| 10/28/1980 | US4229871 Method for prestressing an axially retained homokinetic joint | 
| 10/21/1980 | US4228664 Flexible drive coupling | 
| 10/21/1980 | CA1088006A1 Belleville damper for torque transmitting coupling device | 
| 10/14/1980 | US4227568 Drive system for a ceramic regenerator | 
| 10/14/1980 | CA1087665A1 Spline and shaft unit | 
| 10/14/1980 | CA1087383A1 Flexure hinge assembly | 
| 10/07/1980 | US4226095 Mechanism for maintaining contact between the driving side of torque transfering surfaces of a first rotatable member and the driven side of matching torque transfering surfaces of a second rotatable member | 
| 10/01/1980 | EP0016489A1 Homokinetic coupling | 
| 10/01/1980 | EP0016331A1 Energy-absorbing torque transmitter | 
| 10/01/1980 | EP0016154A1 Flexible coupling |