Contact assembly for high voltage fuse and method of assembly thereof
CA 1087226 A · Owner: S&C Electic Company · Inventors: Scherer Henry W.; Biller, Bruce A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a high voltage expulsion type fuse, a fusible element is connected between an arcing rod and a contact element. The arcing rod is biased for movement by a spring, and when the fuse is assembled the contact element is pulled through the fuse compressing the spring until the contact element is pulled partially through an opening in a contact bridge which is threaded into the metal exhaust ferrule of the fuse. Once the contact element is in the correct position the, bridge is swaged to attach the element to the bridge. The element has tapered grooves at the end that is inserted into the bridge so that when the bridge is swaged, the tapered grooves tend to force the contact element further …
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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
- Granted October 7, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 7, 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.