Electrical fuse with self-centering fuse element and method for manufacture thereof
CA 2034184 C · Owner: Littelfuse, Inc. · Inventors: Reese, Lloyd W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A cylindrical cartridge-type fuse has terminal end caps configured to provide insertion-limiting shoulders arresting the movement of the insulating fuse housing sleeve into the caps during assembly, and further configured with solder-retaining wells having surfaces configured to aligningly guide an inserted fuse element into a generally central location when the sleeve and fuse element are forced into the cap with the solder in a molten condition. Accidental solder voiding arising from the displacement caused by the sleeve and the fuse element is eliminated, and a centered fuse element is provided, secured by an adequate mass of solder therearound. Additional mechanical strength i …
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 January 15, 1991 and granted June 18, 1996. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 15, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 15, 2013.
- 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.