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. 28, 2023
Filed:
Oct. 26, 2021
Applicant:
The Charles Machine Works, Inc., Perry, OK (US);
Inventor:
Floyd R. Gunsaulis, Perry, OK (US);
Assignee:
The Charles Machine Works, Inc., Perry, OK (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 21/10 (2006.01); E21B 17/18 (2006.01);
U.S. Cl.
CPC ...
E21B 21/106 (2013.01); E21B 17/18 (2013.01);
Abstract
A check valve assembly disposed within a pipe joint. The valve assembly is bounded by a pin end on one side and a liner tube on the other. In a first flow condition, a ball is forced away from the pin end and toward a stop member. The stop member has a geometry to allow fluid flow around the ball and through passageways within the stop when in the first flow condition. In a second flow condition, opposite the first flow condition, the ball is forced toward a tapered seat on the pin end, restricting fluid flow in the second flow condition.