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:
Dec. 17, 2013
Filed:
Nov. 05, 2009
Applicant:
Michael Peter Cooke, Gillingham, GB;
Inventor:
Michael Peter Cooke, Gillingham, GB;
Assignee:
Delphi Technologies Holding S.arl, Luxembourg, LU;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04B 17/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
A pump for pumping a fluid comprises an inlet, an outlet, an internal volume disposed between the inlet and the outlet, a first pumping arrangement operable to pump a first volume of fluid from the inlet into the internal volume, and a second pumping arrangement operable to pump a second volume of fluid from the internal volume into the outlet. In a first mode of operation of the pump, the first volume of fluid is greater than the second volume of fluid such that, in use, the pressure of the fluid within the internal volume is elevated to a level above the pressure of the fluid at the inlet.