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:
May. 31, 2005
Filed:
Nov. 19, 2003
Applicants:
Anker Gram, Vancouver, CA;
Stephen Duncan Noble, West Vancouver, CA;
Inventors:
Anker Gram, Vancouver, CA;
Stephen Duncan Noble, West Vancouver, CA;
Assignee:
Westport Research Inc., Vancouver, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F17C013/00 ;
U.S. Cl.
CPC ...
Abstract
A medium and high pressure pump systems supplies a cryogenic fluid from a storage tank. The system comprises a pump that is operable to pump cryogenic liquid or a mixture of cryogenic liquid and vapor. The pump preferably comprises an inducer with at least two chambers and means for recycling excess fluid within the inducer instead of returning excess fluid to the storage tank. The reciprocating pump is preferably double acting such that fluid is discharged from the pump during both extension and retraction strokes.