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. 25, 2005
Filed:
Nov. 29, 2004
Myron D. Tupper, Boring, OR (US);
Myron D. Tupper, Boring, OR (US);
Latch-Tool Development Co. LLC, Colorado Springs, CO (US);
Abstract
A pressure releasing valve structure″ is provided for a fluid operated device. The device has an orificeconstructed and arranged to be in fluid communication with a pressure chamber C. The valve structure includes a bodyhaving first and second ends. A valve memberis provided at the first end of the body and is constructed and arranged to seal the orifice. A first springis associated with the first end of the body and is constructed and arranged to cause the valve memberto seal the orificeunder first pressure conditions in the pressure chamber C. A second springis associated with the second end of the body and is constructed and arranged to compress thereby reducing a force exerted by the first spring, permitting the valve memberto move to a non-sealing position to open the orifice under pressure conditions in the pressure chamber C lower than would be required absent the provision of the second spring.