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:
Aug. 30, 1977
Filed:
Jun. 05, 1975
Applicant:
Inventors:
Malcolm Williams, Solihull, EN;
Christopher Robin Jones, Alcester, EN;
Assignee:
Lucas Electrical Company Limited, Birmingham, EN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02M / ;
U.S. Cl.
CPC ...
1231 / ;
Abstract
An engine exhaust recirculating valve is operated by a solenoid. The valve is normally open, but has an electronic control circuit, including an engine speed transducer, which energizes the solenoid to close the valve when the engine speed is above a predetermined level.