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:
Jul. 17, 1990
Filed:
Mar. 23, 1989
Yoshinari Takakura, Anjo, JP;
Aisin Seiki Kabushiki Kaisha, Kariya, JP;
Abstract
A water pump device includes a pump housing within which is rotatably mounted a pump shaft having a rotor mounted thereon. An annular partition wall is mounted on the housing and extends into the housing so as to form a planar extension of the rotor. The rotor and partition wall define first and second substantially independent pump chambers in the housing. Two sets of impellers are mounted on the rotor, one set of the impellers extending into each of the chambers. Liquid inlet and discharge conduits communicate with each of the chambers so that a double pump is formed in the housing.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile