Monitoring relay
CA 1051111 A · Owner: Pneutron Priesemuth Kg · Inventors: Priesemuth, Wolfgang
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A monitoring relay having a relay contact comprising a magnetizable element and urged by spring means into a rest position establishing a first electrical path through the relay, the relay contact being movable against the action of the spring means from its rest position into a working position establishing a second electrical path through the relay. The relay furthermore has a relay winding operable to move the relay contact into its working position and connectable in a main circuit which is to be monitored for changes in current, the arrangement being such that the first electrical path is connectable in the monitoring circuit for registering a drop in current in the main circuit, and …
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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 20, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 20, 1996.
- 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.