Circuit breaker contact assembly
CA 1310046 C · Owner: Square D. Company · Inventors: Winter, John M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A circuit breaker having a movable upper blade with a free floating pivot end. The operating mechanism is solidly connected to the Upper blade. The contact force is generated by a contact spring which exerts an upward force on the lower blade. No other resilient force acts directly upon the upper blade. As the contacts separate the force exerted on the upper blade is virtually eliminated, reducing substantially the resistance at the pivot end of the upper blade. The load terminal and pivot end of the upper blade provide a current path parallel to that of the load side flexible connector.
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 10, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 10, 2009.
- 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.