Method of making a shaft seal
CA 1086911 A · Owner: Garlock Inc. · Inventors: Bainard, Dean R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of making a shaft seal of the type including an elastomeric body and a polytetrafluoroethylene lip seal, comprising inserting a metal shell (if employed in the seal) and a polytetrafluoroethylene washer in a transfer or compression mold, and then closing the mold to simultaneously form the polytetrafluoroethylene washer into the desired shape, form the rubber into the desired shape and bond the rubber to the shell (if used) and to the polytetrafluoroethylene sealing element.
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 October 7, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 7, 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.