Bimetallic indicator
CA 1311366 C · Owner: Ohike, Toshio · Inventors: Ohike, Toshio; Nakazaki, Youji; Sato, Yoshitake
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A bimetallic indicator includes a bimetal being deformed by a heat generated by an electric current supplied to a heat coil wound around the bimetal a pointer, moved in relation to the deformation of the bimetal and indicating a measured value in accordance with an amount of electric current supplied to the heating coil a driving, gear, which is rotated by the deformation of said bimetal including two first pitch portions each having a plurality of teeth with a regular pitch and a second pitch portion provided between the first pitch portions and having a pitch larger than that of the first pitch portion and a, driven gear to which the pointer is mounted being engaged with the driving gear …
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 December 15, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 15, 2009.
- 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.