Asbestos free friction element
CA 1338697 C · Owner: Borg-Warner Corporation · Inventors: Wargin, Robert Vincent
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Friction elements, particularly those employed in clutch elements, which incorporate fiber strands impregnated with a binder resin wound into a friction element and cured are markedly improved in wear characteristics and burst strength when the fiber strands are formed of a combination of glass, acrylic fiber and metallic filament. The fiber strands, twisted into a yarn and plied to form a composite yarn of opposing twist contribute greatly to improved performance particularly, better fade resistance and engagement response together, with high burst strength.
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 November 12, 1996. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 12, 2013.
- 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.