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.:

US 7284969 B1

PDF
Full Text
Expired
Date of Patent:
Oct. 23, 2007

Filed:

Sep. 24, 2003
Applicants:

Shin Akimoto, Yokohama, JP;

Daisuke Tanaka, Yokohama, JP;

Inventors:

Shin Akimoto, Yokohama, JP;

Daisuke Tanaka, Yokohama, JP;

Assignee:

Jidosha Denki Kogyo Co., Ltd., Yokohama-Shi, Kanagawa, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04D 29/70 (2006.01);
U.S. Cl.
CPC ...
Abstract

A washer pump includes a case partitioned into a motor chamber, which accommodates an armature rotated when it is electrically energized, and partitioned into a pump chamber, which accommodates an impeller rotated being coupled to an armature shaft of the armature, wherein washing liquid is sucked into the pump chamber from a liquid suction port, which is communicated with the pump chamber, by the rotation of the impeller, and the washing liquid is discharged from a liquid discharge port which is communicated with the pump chamber, and the washer pump is characterized in that: a ventilation hole is provided on a partition wall to partition the pump chamber and the liquid suction port, a filter for filtering the washing liquid is detachably attached to the liquid suction port, an air passage is provided in the filter, and the air passage is communicated with the ventilation hole.


Find Patent Forward Citations

Akimoto, Shin. (2007). Washer pump and filter used for washer pump (U.S. Patent No. 7284969). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7284969

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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