Circuit breaker with electrical disconnect means
CA 1268508 C · Owner: Changle, Joseph Frank · Inventors: Grunert, Kurt Albert; Changle, Joseph Frank
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
51,953, ABSTRACT OF THE DISCLOSURE, A circuit breaker with electrical disconnect means characterized by a solenoid operator for moving a handle of a circuit breaker between ON and OFF positions. The solenoid operator includes a movable electromagnet and a movable armature for actuating the handle an interlock, switch serially connected to the electromagnet and a manual operator for overriding the solenoid operator by opening a circuit through the interlock switch.
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 May 1, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 1, 2007.
- 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.