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. 29, 2005
Filed:
Dec. 30, 2002
James H. Kemmerer, Sweet Springs, MO (US);
Randal D. Craig, Sedalia, MO (US);
Dilbert G. Clark, Mora, MO (US);
James H. Kemmerer, Sweet Springs, MO (US);
Randal D. Craig, Sedalia, MO (US);
Dilbert G. Clark, Mora, MO (US);
Hayes Lemmerz International, Inc., Northville, MI (US);
Abstract
This invention relates to an improved air operated fluid control valve which tends to inhibit or impede the travel of a fluid to the air controlled side of the control valve. The air operated fluid control valve includes a control valve having a valve body provided with at least one fluid inlet port and at least one fluid outlet port, at least one air inlet port and at least one air outlet port, and a piston assembly selectively controlled by the air inlet and outlet ports so as to regulate the flow of a fluid through the valve body from the at least one fluid inlet port to the at least one fluid outlet port. According to one preferred embodiment of this invention, the control valve includes at least one shield member carried by piston assembly which is operative to inhibit the travel of a fluid from a fluid side of the control valve into an air controlled side of the control valve.