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:
May. 08, 2007
Filed:
Dec. 15, 2004
William Thomas Flynn, Horton, MI (US);
William Thomas Flynn, Horton, MI (US);
Eaton Corporation, Cleveland, OH (US);
Abstract
A valve assembly includes a body having a bore and a valve received within the bore for movement between an open position and a closed position. First and second sealing members are secured for movement with the valve and are positioned between the valve and the body such that an internal fluid pressure within the bore is applied to a first side of the sealing members and a common reference pressure is applied to a second side. An axial force imparted on the valve adjacent the second sealing member is less than an axial force imparted on the valve adjacent the first sealing member. A resiliently compressible member is positioned to bias the valve toward the normally open position. The valve is moved to the closed position when the internal fluid pressure exceeds a predetermined pressure and returns to the open position when the internal fluid pressure is substantially less than the predetermined pressure.