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. 02, 2004
Filed:
Mar. 27, 2003
Applicant:
Inventor:
Rudolph Bergsma, Ann Arbor, MI (US);
Assignee:
Eaton Corporation, Cleveland, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02M 2/508 ; F16K 2/400 ;
U.S. Cl.
CPC ...
F02M 2/508 ; F16K 2/400 ;
Abstract
A diaphragm operated pressure responsive valve has its inlet connected to a fuel tank vapor line and the valving chamber openly connected to the storage canister and to the engine air intake manifold vapor purge control valve. The diaphragm is operable to vary the spring bias on a valve member disposed in the chamber for biasing closed the vapor line from the tank in the event of high vacuum from the engine purge control valves. A bleed bypass permits continued bleed flow of vapor from the tank to the valving chamber.