Multiple-impact shock absorbing means for circuit interrupter and other apparatus
CA 1264176 C · Owner: Westinghouse Electric Corporation · Inventors: Milianowicz, Stanislaw Adam
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
21 51,245, ABSTRACT OF THE DISCLOSURE, The kinetic energy generated by the rapidly moving contact and coupled operating mechanism of a tripped circuit breaker or similar apparatus is dissipated by a shock-absorbing assembly comprising a stack of metal plates and interposed leaf springs which is mounted on a stationary part of the breaker and is struck by a lever fastened to the main operating shaft of the breaker operating mechanism. The metal plates are movable toward and away from one another due to the resiliency of the leaf springs and the resulting multiple-impacts between the plates and advancing breaker lever produces a momentum exchange phenomenon which quickly dissipates the …
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 January 2, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 2, 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.