Rotary shaft seal assembly
CA 1317331 C · Owner: Woodex Bearing Company, Inc. · Inventors: Bowers, David; Kemp, Dennis E. Jr.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A rotary seal comprises an elastomeric sleeve adapted to be mounted on a shaft, a pair of washers encompassing the ends of the sleeve, wear plates engaged against the antifriction washers, and a compression device for urging the washers toward each other axially to fore- shorten the sleeve and define between the sleeve and washers a torque driving connection, said washers being formed of anti-friction polymeric material and said wear plates being formed of metal or vice versa.
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 May 4, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 4, 2010.
- 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.