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:
May. 02, 2006
Filed:
Jun. 21, 2002
Applicants:
Kenneth Nixon, Alexander, AR (US);
James Volk, Maumelle, AR (US);
Inventors:
Kenneth Nixon, Alexander, AR (US);
James Volk, Maumelle, AR (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K 15/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
Within a check valve, a spring urges a poppet into the closed position. If the fluid flow through the valve attempts to reverse, the poppet will seal against the valve seat by a combination of spring resistance and fluid pressure, thereby preventing all or a significant portion of fluid flow back through the valve body. The poppet is retained in the valve body by a retainer or other suitable part or combination of parts that can be removed for service of the check valve assembly.