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:
Aug. 02, 2011
Filed:
Nov. 29, 2006
Paulus Cornelis Duineveld, Drachten, NL;
Fred Fraij, Drachten, NL;
Marinus Christiaan Hansen, Odoornerveen, NL;
Joeke Noordhuis, Hoogeveen, NL;
Paulus Cornelis Duineveld, Drachten, NL;
Fred Fraij, Drachten, NL;
Marinus Christiaan Hansen, Odoornerveen, NL;
Joeke Noordhuis, Hoogeveen, NL;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
A pump unit includes a reservoir for containing a liquid, a duct system for conveying the liquid, and a pumping section for subjecting the liquid to a pumping force. The initial filling of at least a portion of a duct for conveying the liquid from the reservoir to the pumping section is brought about under the influence of another force other than the pumping force, for example, under the influence of gravity.