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:
Feb. 22, 2000
Filed:
Sep. 23, 1996
Applicant:
Inventors:
Shizuo Shimanuki, Anjyo, JP;
Norio Sasaki, Aichi-ken, JP;
Assignees:
Aisin Seiki Kabushiki Kaisha, Aichi-ken, JP;
Toyota Jidosha Kabushiki Kaisha, Aichi-ken, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04B / ;
U.S. Cl.
CPC ...
417420 ; 4174237 ;
Abstract
A magnetically driven pump includes a pump chamber, an impeller held in the pump chamber so as to be rotatable about a central axis, a drive unit for rotatively driving the impeller, and a magnetic attraction system provided on the drive unit and impeller for rotating the impeller by mutual magnetic force. At least one of the first and second magnetic attraction devices is provided in parallel with the central axis and being provided also in front of and in back of the pump in the axial direction.