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:
Oct. 28, 2003
Filed:
Dec. 06, 2001
Robert H. Neff, Bloomfield Village, MI (US);
Jeffrey S. Simmonds, Brighton, MI (US);
MAC Valves, Inc., Wixom, MI (US);
Abstract
A pneumatic pressure regulator assembly including a regulator housing having an inlet adapted for fluid communication with a supply of pneumatic pressure, an outlet adapted to provide pneumatic pressure to a downstream pneumatically actuated device at a regulated pressure, and a regulator valve assembly. The regulator valve assembly has a valve member movably supported within the regulator housing between an open and a closed position. A piston assembly acts to bias the valve member to its open position when the outlet pressure is below a predetermined value. The piston assembly includes a pressure responsive surface defining a geometric shape with a major and a minor axis wherein the major axis is greater than the minor axis. The piston assembly is responsive to pneumatic pressure flowing between the inlet and the outlet to reduce the biasing force acting on the valve member such that the valve member moves to its closed position when the outlet pressure exceeds a predetermined value.