Magnetically operated low reluctance mercury switch relay
CA 1090398 A · Owner: Allen-Bradley Company Inc. · Inventors: Bath, Jerome R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure A mercury switch is provided in a cartridge for insertion into a relay having a plurality of flux fingers spaced apart to define a flux finger gap the cartridge, being received in the relay and bridging the flux finger gap. The mercury switch includes a pair of mercury layers having an air gap therebetween, the mercury layers merging in response to a magnetic field to form a continuous electrical conductor. The mercury switch is disposed across the width of the cartridge in the flux finger gap. Flux plates are disposed within the cartridge and magnetically coupled to the switch to provide a low reluctance path between the flux fingers the path, including the …
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 November 25, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 25, 1997.
- 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.