Coupling assembly
CA 2082087 C · Owner: Latsko, James Michael · Inventors: Latsko, James Michael
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A coupling assembly includes a clutch assembly and a brake assembly. The brake assembly includes an annular piston which is formed as one piece with a base member. An annular cylinder chamber is formed as one piece with a second member and telescopically receives the annular piston. Force transmitting surfaces on the two members engage opposite sides of a friction disk. The annular piston and cylinder extend around the outside of the friction disk to at least partially block a flow of contaminants in a radially inward direction toward the friction disk. Passages are formed in a lower portion of the annular piston to accommodate a flow of cooling fluid and to enable any contaminants which …
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
- Filed November 4, 1992 and granted April 13, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 4, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 4, 2014.
- 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.