Universal joint
CA 1083370 A · Owner: Dana Corporation · Inventors: Phelps, Orville E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a universal joint of the type in which two rotatable shafts are drivingly connected by torque transmitting mechanisms, each shaft being grooved, the grooves being disposed in cooperative paired relationship and being adapted to at least partially contain the torque mechanisms improved, operation may be achieved by providing a bearing assembly between the torque transmitting mechanism and one of the grooves to assist relative movement therebetween. The torque transmitting mechanism are preferably circumferentially spaced at least about 180° from the next adjacent torque transmitting mechanism.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted August 12, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 12, 1997.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.