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. 26, 2020
Filed:
Apr. 14, 2017
Downing Wellhead Equipment, Llc, Oklahoma City, OK (US);
Nicholas J. Cannon, Washington, OK (US);
Ronnie B. Beason, Lexington, OK (US);
Joel H. Young, Norman, OK (US);
Downing Wellhead Equipment, LLC, Oklahoma City, OK (US);
Abstract
A valve apparatus that includes a first containment area having a fluid disposed therein at a first fluid pressure and a second containment area disposed below the first containment area having a fluid disposed therein at a selective fluid pressure where the selective fluid pressure can be increased and decreased, the second containment area in fluid communication with the first containment area. The valve apparatus also includes a valve disposed between the fluid in the second containment area at the selective fluid pressure and the fluid in the first containment area at the first fluid pressure. The valve apparatus includes a third containment area disposed below the second containment area having a fluid disposed therein at a third fluid pressure wherein the third fluid pressure is higher than the first fluid pressure, the second containment area in fluid communication with the third containment area. Furthermore, the valve apparatus includes a second valve disposed between the fluid in the third containment area at the third fluid pressure and the fluid in the second containment area at the selective fluid pressure. A method for passing an object through the valve apparatus from a low pressure area to a high pressure system.