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. 29, 2000
Filed:
Feb. 09, 1999
Toshihiro Sato, Toyohashi, JP;
Asmo Co., Ltd., Kosai, JP;
Abstract
A washer pump device has a cylindrical central housing, a motor, a top housing and a bottom housing for accommodating a motor and an impeller. The central housing comprises an outer wall and an inner wall arranged coaxially. A groove is formed in the bottom surface of the outer wall and is closed by a flange of the bottom housing to provide a horizontally extending arcuate passage. One end of the passage is open to the outside of the housing through an air vent which extends in a vertical direction. The other end of the passage is open to the inside of the housing through an air vent which extends in a vertical direction. The passage and two air vents form a three dimensional passage so that water droplets are restricted from entering into a motor housing chamber.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile