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. 04, 2003
Filed:
Sep. 07, 2001
Applicant:
Inventor:
Richard R. Watson, Missouri City, TX (US);
Assignee:
Gilmore Valve Co., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F15B 1/3043 ;
U.S. Cl.
CPC ...
F15B 1/3043 ;
Abstract
A spool valve may be used in a subsea system with a single upstream pilot valve to control the spool valve. The spool valve opens and closes a main valve in response to fluid signals from the pilot valve. The main valve is connected to a source of pressurized supply fluid, which is selectively directed to a downstream apparatus. The spool valve and the main valve can be produced in an integrated design with a single body. In an alternative embodiment, the spool valve and main valve are separate with separate bodies. The spool valve may also be used in non-subsea systems.