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:
Nov. 03, 1987
Filed:
Jun. 26, 1986
Applicant:
Inventors:
Chris M DeMinco, West Rush, NY (US);
Martin J Field, Churchville, NY (US);
Debra E Serth, Spencerport, NY (US);
Assignee:
General Motors Corporation, Detroit, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02D / ;
U.S. Cl.
CPC ...
123520 ; 123574 ;
Abstract
A valve obstructs flow of fuel vapor to an engine induction passage both when the engine is not operating and when the engine is operating with a closed throttle, and varies flow of fuel vapor to the induction passage when the engine is operating with an open throttle.