Stepless control of a.c. power
CA 1105083 A · Owner: Firma E.G.O. Regeltechnik G.M.B.H. · Inventors: Gossler, Gerhard; Kicherer, Robert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A power controller for substantially stepless manual control of electrical AC power to a load. The controller comprises power switch means and a bimetal member for intermittently operating the switch means. Means is provided for heating the bimetal member in dependence upon power supplied to the load via the power switch means. Manually operable control means continuously acts on the bimetal member. A diode and auxiliary switch means is actuable by the control means for connecting the diode in circuit with the heating means only in an upper power range. The heating means receives only half wave power in the upper range but receives full wave power in a Lower power range. The heating means …
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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 July 14, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 14, 1998.
- 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.