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.

Date of Patent:
May. 02, 1978

Filed:

Jul. 29, 1976
Applicant:
Inventors:

Touru Yagi, Musashino, JA;

Hiroyuki Osawa, Saitama, JA;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02P / ;
U.S. Cl.
CPC ...
1231 / ; 13759617 ; 1231 / ;
Abstract

An electromagnetic selector valve system having an electrically conductive coil adjacent a moveable core within a valve body. First, second and third valve passages are in communication with the valve body, and biasing means are adapted to bias the reciprocative core to assume a first position wherein the core permits communication only between the first and third passages. Upon energizing the electrically conductive coil, the core assumes a second position which permits communication only between the first and second passages. In a preferred embodiment, the electromagnetic selector valve is utilized in order to control the spark advance of an engine.


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