Method for manufacturing a friction ring having a conical or cylindrical friction surface
CA 1319252 C · Owner: Gramberger, Johann · Inventors: Gramberger, Johann
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A b s t r a c t :, In order to enable a friction ring comprising a supporting ring and a sintered friction lining to be produced without sintering the friction lining to an intermediate carrier one initially forms a self-supporting moulded ring from a compacted dry powder material , by pre-sintering or bonding using a bonding agent, whereafter the moulded ring is pressed into the supporting ring and the friction lining is produced by final sintering.
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 June 22, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 22, 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.