Battery isolator switches for use in road vehicles
CA 1137166 A · Owner: Lucas Industries Limited · Inventors: Holt, William D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A battery isolator switch has main battery contacts and an auxiliary contact for controlling the supply of excitation current to an alternator. In order to ensure that there is a delay between opening the auxiliary contact and the main contacts when the switch is tripped by a remote contact there is provided a latching circuit which energises a relay for opening the auxiliary contact, and a delay circuit for turning on a transistor after a suitable delay to energise, a main tripping winding via another relay.
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 7, 1982. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 7, 1999.
- 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.