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. 04, 1989
Filed:
Sep. 06, 1988
Kouji Ichihashi, Higashimatsuyama, JP;
Diesel Kiki Co., Ltd., Tokyo, JP;
Abstract
An electromagnetic valve comprising a housing provided with a supply port, at least one control port and a discharge port, and a valve member accommodated movably in the housing. The housing is formed therein with first and second opposed valve seats extending perpendicularly to the axis of the valve member. The valve member has first and second abutment faces extending perpendicularly to the axis of the valve member. The first and second abutment faces are opposed respectively to the first and second valve seats. The valve member is movable between a position where the second abutment face is abutted against the second valve seat to intercept communication between the control port and the discharge port, and a position where the first abutment face is abutted against the first valve seat to intercept communication between the control port and the supply port. An area surrounded by an outer peripheral edge of the second abutment face is smaller than an area surrounded by an outer peripheral edge of the first abutment face.