Pressure responsive switch
CA 1283150 C · Owner: Honda Giken Kogyo Kabushiki Kaisha · Inventors: Hattori, Kenji
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A pressure responsive switch including a case having a pressure inlet and an orifice plate, an amorphous diaphragm and a ferrite core arranged in said case, said ferrite core having a pick-up coil housed therein, in which a pressure introduced into the case acts through the orifice plate against a surface of the amorphous diaphragm and a mechanical deformation of said amorphous diaphragm caused by said pressure is detected as a variation of electrical signal by means of the pick-up coil. The characteristic feature resides in that said orifice plate has a larger area at its side facing the ferrite core than at its opposite side facing the pressure inlet.
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
- Granted April 16, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 16, 2008.
- 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.