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:
Jan. 23, 1990
Filed:
Dec. 21, 1988
Applicant:
Inventor:
Takatoshi Arai, Saitama, JP;
Assignee:
Jidosha Kiki Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04B / ;
U.S. Cl.
CPC ...
417360 ; 417417 ; 310 15 ;
Abstract
An electromagnetic pump includes a cylindrical member, a resin coil bobbin, a printed circuit board, a holder, and pump housing. Engaging projections are formed on a peripheral portion of a surface of the coil bobbin, which opposes the lid, and the electromagnetic pump components are held in the pump housing while they are biased in the axial direction of the cylindrical member by utilizing the engaging projections.