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:
Feb. 18, 2003
Filed:
Oct. 18, 2001
Rodney C. Hope, Sugar Land, TX (US);
W. Robert Cox, Magnolia, TX (US);
Gilmore Valve Co., Ltd., Houston, TX (US);
Abstract
A dirty fluid valve having a mechanical latching or detent system to secure the valve in an open or closed position is disclosed. The preferred detent assembly includes a c-ring that is engaged and urged outwardly by radially extending pins. The pins are urged outwardly by a ball bearing that is continuously biased by a spring carrier in combination with at least one belleville spring. The spring is captured between the spring carrier and an adjusting nut that can be rotated to vary the load on the spring. The detent assembly releasingly engages a first detent groove in the valve body when the valve piston is in the valve closed position and releasingly engages a second detent groove in the valve body when the piston is in the valve open position.