Method and apparatus for conveying a liquid
CA 1290982 C · Owner: Deutsche Forschungsanstalt Fur Luft- Und Raumfahrt E.V. · Inventors: Schneider, Gottfried; Peschka, Walter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a method for conveying a liquid at or in the proximity of its boiling temperature, in particular liquid hydrogen, by means of a pump which draws the liquid from a storage container through a suction entrance port in order to pre-, vent undesired bubble formation in the suction region it, is proposed that the pressure in the storage container be increased for a short time during the suction phase of the pump above the equilibrium pressure of the liquid in the storage container. An apparatus for performing this method is also described.
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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 October 22, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 22, 2008.
- 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.