Shorting switch and system to eliminate arcing faults in power distribution equipment
CA 2489531 A1 · Owner: Eaton Corporation · Inventors: Miller, Jeffrey Allen; Shea, John Joseph
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A shorting switch (2) includes a vacuum switch (4) having fixed and movable contact assemblies (8, 10) and a driven member (26). A spring cover tube (38) and bushing (36) mount the driven member (26) for linear movement along a path substantially parallel to a longitudinal axis of the movable contact assembly (10). The driven member (26) moves the movable contact assembly (10) between open and closed circuit positions. A compression spring (40) has a compressed state and a released state, which moves the driven member (26) and movable contact assembly (10) to the closed circuit position. A release bolt (32) has an opening (68) therein and is coupled to the driven member (26) to …
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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 June 13, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 13, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 13, 2025.
- 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.