Auxiliary switch retainer for circuit breakers and actuator member
CA 2008256 C · Owner: Cambreleng, Paul S. · Inventors: Cambreleng, Paul S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A circuit breaker having the generally rectangular case with an actuating switch handle on one edge and terminals at the opposite edge is provided with an auxiliary switch receptacle at the edge by the terminal. Retainer means is provided for holding the auxiliary switch in the receptacle and an access opening is provided through the edge wall for communication between the switch actuating member and a portion of the breaker mechanism moving in response to breaker contact opening and closing. A U-shaped retainer is preferably used to retain the switch in the receptacle by passing prongs thereof through the holes in the switch walls and the aligned switch holes. The actuator member may be in …
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 January 22, 1990 and granted March 15, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 22, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 22, 2012.
- 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.