Pump system for delivering cryogenic liquids
CA 2365953 A1 · Owner: Linde Gas Aktiengesellschaft · Inventors: Dresler, Helmut
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a pump system for delivering cryogenic liquids. Said pump system can be used for refuelling motor vehicles with H2. The inventive system consists of a container for receiving the cryogenic liquid. At least one pump that is configured as reciprocating pump with a pull rod actuating system and a spring return system is arranged in said container. The pump cylinder (1) of the reciprocating pump is separated into two chambers (a and b) by means of the piston (14, 17). The two chambers (a and b) are allocated to the pressure side or the suction side. The cryogenic liquid in the container is first caught in the chamber (b) by means of the pressure stroke and by …
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 April 5, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 5, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 5, 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.