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:
Feb. 05, 1980
Filed:
Jun. 02, 1978
Applicant:
Inventors:
Edward G Day, Rochester, NY (US);
Thomas J Hollis, Jr, Fairport, NY (US);
Assignee:
General Motors Corporation, Detroit, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02B / ;
U.S. Cl.
CPC ...
1231 / ;
Abstract
A transducer modifies a subatmospheric pressure signal to create an operating pressure which positions an exhaust gas recirculation control valve. A regulating unit senses subatmospheric induction passage pressure to provide the pressure signal and prevents the pressure signal from dropping below a lower limit to thereby establish the maximum exhaust gas recirculation area produced by the control valve.
Day, Edward. (1980). Exhaust gas recirculation control (U.S. Patent No. 4186702). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4186702
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile