Regulating transformer system
CA 1296768 C · Owner: Bickley, Trevor A. · Inventors: Bickley, Trevor A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A regulating transformer system for, regulating the voltages derived from two secondary windings of a main transformer is capable of regulating the voltages when the loads on the two secondary windings change by different amounts or change in opposite directions. The primary winding of the main transformer has a tapped portion that can regulate the voltages from the two secondary windings together. The tapped portion may also be reversible. An auxiliary transformer has two secondary windings which are each connected in series with one of the secondary windings of the main transformer but with the polarity reversed on one of the secondary windings of the auxiliary transformer. The primary of …
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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 March 3, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 3, 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.