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.

Date of Patent:
Apr. 02, 2013

Filed:

Aug. 30, 2006
Applicants:

Heinrich Hoffmann, Heringen, DE;

Patrick Opel, Rotenburg, DE;

Thomas Werner, Nentershausen, DE;

Inventors:

Heinrich Hoffmann, Heringen, DE;

Patrick Opel, Rotenburg, DE;

Thomas Werner, Nentershausen, DE;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04B 35/04 (2006.01);
U.S. Cl.
CPC ...
Abstract

A washer fluid pump () for a window cleaning system includes two ventilation openings () arranged in a housing () and linked with a single opening () arranged on the inside. A ventilation duct () has two sections () arranged tangentially to the housing (). The ventilation openings () are separated from each other by a partition (). This design makes it possible for the housing () to have a large ventilation cross section and avoids splashed water penetrating the housing ().


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