Circuit breaker with operating mechanism having outboard cam and ratchet
CA 1089521 A · Owner: Westinghouse Electric Corporation · Inventors: Bould, Fred
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A circuit breaker is taught having an operating mechanism with two parallel, spaced apart support members. A circular shaft having keyed ends is supported in the parallel support members such that the keyed ends extend outboard of the two support members. On one keyed end is disposed a correspondingly keyed cam. On the other keyed end is disposed a ratchet wheel which is spaced from the keyed portion so that it may turn independent of the shaft in one direction. Also disposed on the same end as the ratchet is a correspondingly keyed lever which rotates synchronously with the cam. The lever may interlock with the ratchet to be rotated thereby. Both the lever and cam have parallel connecting …
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 11, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 11, 1997.
- 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.