Surge absorbing component to protect from overvoltage and overcurrent
CA 2067202 A1 · Owner: Miyahara, Hironori · Inventors: Ibukuro, Hisao; Shibayama, Takashi; Miyahara, Hironori
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
There is provided a surge absorbing component with protection function from overvoltage and overcurrent comprising;, a metal wire with high stiffness which has been mechanically and elastically deforemd is jointed with a low-melting point metal to a terminal or to a lead wire of a gap-type or microgap-type surge absorbing element. In case the surge absorbing element generates heat due to overvoltage and obercurrent the low melting point, metal is melt to separate from the terminal or lead wire and the, connection is broken. The stiff metal wire is connected in series with the surge absorbing element and a device or a circuit that is to be protected. 12
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 August 7, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 7, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 7, 2012.
- 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.