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:
Jun. 21, 1977
Filed:
Nov. 21, 1975
Minoru Tanaka, Chofu, JA;
Syoichi Otaka, Saitama, JA;
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JA;
Abstract
Ignition timing control apparatus for an internal combustion engine driving a vehicle through an automatic transmission includes a vacuum actuator connected to turn a point base about the axis of the rotary cam which operates the breaker points. The vacuum actuator is connected by a conduit to an intake passage in the engine downstream from the throttle valve. An electromagnetic selector valve is placed in the conduit and acts to connect the vacuum actuator either to the engine intake passage or to atmosphere. A temperature responsive member operates an electric switch to control the selector valve. A check valve and a restricted orifice are mounted in parallel in said conduit between the selector valve and the vacuum actuator.