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:
Jul. 19, 2016
Filed:
Aug. 19, 2014
Applicants:
John Leslie Johnson, Raleigh, NC (US);
James G. Johnson, Knotts Island, NC (US);
Inventors:
John Leslie Johnson, Raleigh, NC (US);
James G. Johnson, Knotts Island, NC (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K 31/12 (2006.01); F16K 31/22 (2006.01); F16K 21/04 (2006.01); F16K 31/122 (2006.01);
U.S. Cl.
CPC ...
F16K 31/22 (2013.01); F16K 21/04 (2013.01); F16K 31/122 (2013.01); Y10T 137/8667 (2015.04);
Abstract
A double action directional fluid flow valve includes a stepped piston connected with a poppet valve and moveable by a controller between open and closed positions by applying a continuous pressure to a small diameter piston face and selectively applying and removing pressure from a large diameter piston face to move the poppet valve between an open position and a closed position.