Multipole circuit breaker with single-pole units
CA 2080063 C · Owner: Merlin Gerin · Inventors: Nereau, Jean-Pierre; Perrier, Philippe; Nebon, Jean-Pierre
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A low voltage multipole circuit breaker with double housing, each pole of which comprises, a single-pole breaking unit having a parallelepipedic box with two large side faces, made of molded plastic material and contacts, associated with an extinguishing chamber housed in the unit, several units being mounted side by side in a molded case to form the multipole circuit breaker. A movable contact is arranged as a rotating contact bridge which cooperates with two opposing stationary contacts the, contact bridge being supported by a rotating bar section which extends transversely appreciably in the center of the box being inserted between and laterally guided by the two large side faces of 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
- Filed October 7, 1992 and granted December 10, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 7, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 7, 2014.
- 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.