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:
Mar. 18, 2008
Filed:
Oct. 26, 2004
Thomas Joseph Hilton, Kirkland, WA (US);
Thomas Joseph Hilton, Kirkland, WA (US);
A&H Enterprises, Inc., Kirkland, WA (US);
Abstract
An adjustable pressure control valve includes a body having an inlet port and an outlet port and a handle assembly having a threaded portion and an adjustment knob. A seat assembly disposed within the body includes a seat holder in communication with the outlet port that is received on the threaded portion of the handle assembly, wherein the seat holder is translatable in first and second directions when the handle assembly is rotated in first and second directions. The seat assembly also includes a valve seat fluidly affixed to the seat holder, wherein fluid can pass through the valve seat and the seat holder. The valve includes a pin biased by a pin spring that is engageable with the valve seat, and a main spring engageable with the pin to urge the pin against the valve seat to accommodate the pressure and volume of the fluid in the valve.