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:
Apr. 19, 2022
Filed:
Jun. 17, 2019
Applicant:
Kholle Magnolia 2015, Llc, Houston, TX (US);
Inventors:
Mark C. Dille, Magnolia, TX (US);
Larry Mitchell Hill, Cypress, TX (US);
William Brent Stroebel, Houston, TX (US);
Scott Taylor Donaldson, Spring, TX (US);
E. Lee Colley, III, Houston, TX (US);
Assignee:
KHOLLE Magnolia 2015, LLC, Tomball, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K 15/03 (2006.01); G05D 7/01 (2006.01); E21B 43/26 (2006.01);
U.S. Cl.
CPC ...
F16K 15/035 (2013.01); G05D 7/0173 (2013.01); E21B 43/26 (2013.01);
Abstract
Pivot valves have a valve seat and a valve closure mounted for pivoting movement through a closure chamber in a passage. The pivot valves may be selectively set in a check mode and an open mode. Flapper valves have a hydrofoil extending from a flapper. Valve assemblies comprise the pivot valves and flapper valves and have an open condition, a check condition, and a shut-off condition.