The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 17, 1990
Filed:
Mar. 15, 1988
Applicant:
Inventors:
Walter Peschka, Sindelfingen, DE;
Gottfried Schneider, Stuttgart, DE;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F17D / ;
U.S. Cl.
CPC ...
417 53 ; 417 86 ; 417901 ; 62 501 ;
Abstract
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 prevent 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.