Lamp circuit connector for trailers
CA 1079375 A · Owner: Richardson, Dudley G. · Inventors: Ross, Joseph H.; Richardson, Dudley G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
LAMP CIRCUIT CONNECTOR FOR TRAILERS", Abstract of Disclosure Connector device for connecting the lamp circuit of a trailer vehicle with the lamp circuit of a tractor vehicle comprising a circular base member having a hub circular walls, and different diameter non-conducting plastic rings rotatably disposed one within the other on the base member. Each ring has a recessed metal strip along its underside a convex dimple, and, a positioning hole in its upper surface. Contact riders radially disposed on the base member establish electrical contact with the metal strips of each ring and are connected with conductors which are attachable to the lamp circuit of one of the vehicles. Contactor …
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 June 10, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 10, 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.