Connecting coupling with a switch unit
CA 2487682 C · Owner: Weh, Erwin · Inventors: Weh, Erwin; Weh, Wolfgang
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention is a simplified connecting coupling (10) for safely transferring gasses and/or liquids especially for , filling the gas tanks of vehicles even in the case of high , filling pressures. The connecting coupling has a switch unit (21) for actuating valves (35) by means of a switch slide (27). A control lever (50) comprising an eccentric shaft (51) is held in a sleeve (52), the sleeve being rotatable 360 about the circumference of a middle housing part (11b). According to the invention, the switch unit (21) actuates the valves (35) by means of the switch unit (21).
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 March 1, 2003 and granted January 3, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 1, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 1, 2025.
- 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.