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, 2003
Filed:
Jul. 12, 2002
Applicant:
Inventors:
Alfred F. Dickey, Colorado Springs, CO (US);
Cody W. Jackson, Colorado Springs, CO (US);
William T. Ball, Colorado Springs, CO (US);
Assignee:
WCM Industries, Inc., Colorado Springs, CO (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E03B 7/12 ; F16K 3/164 ; E03C 1/10 ;
U.S. Cl.
CPC ...
E03B 7/12 ; F16K 3/164 ; E03C 1/10 ;
Abstract
A freezeless wall hydrant has a fluid inlet end connected to a source of pressurized water, and a fluid outlet end. A check valve is placed in the bore of the valve body and is spring loaded to open only when extreme water pressure within the inlet valve lifts a spring loaded piston element to permit the highly pressurized water to move through the bore in the valve body and be relieved as it escapes rearwardly into the original source of pressurized water.