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:
Aug. 09, 1988

Filed:

Jul. 16, 1987
Applicant:
Inventor:

Gregory E Rich, Richmond, MI (US);

Assignee:

General Motors Corporaton, Detroit, MI (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D / ; B67D / ;
U.S. Cl.
CPC ...
141 46 ; 141 59 ; 141286 ; 141302 ; 55387 ; 220 / ; 220 / ;
Abstract

An on board refueling vapor recovery system employs a recirculation line and a regulating valve to prevent the entrainment of atmospheric air into the fuel, without the use of a tight or rubbing seal around the fuel nozzle.


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