Electrical contact coupling for automatic central couplings or central buffer couplings for rail vehicles
CA 2339838 A1 · Owner: Scharfenbergkupplung Gmbh & Co. Kg · Inventors: Sullivan, John
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to an electrical contact coupling (3) for automatic central couplings or central buffer couplings for rail vehicles especially , for claw couplings equipped with a protective arm a rotatable claw and with a , drop latch of the "AAR" or "Janney" design or equipped with two rigid claws and claw latches of the "Willison" design comprising a contact support (8) which is fastened to the coupling head and which is guided in a longitudinally displaceable manner in a longitudinal direction of the central buffer coupling. An economical and flat-structured solution provided for constructing and configuring an electrical contact coupling (3) and an air line coupling (12) …
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
- Filed May 31, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 31, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 31, 2022.
- 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.