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:
Jun. 07, 2022
Filed:
May. 27, 2020
Applicant:
Utex Industries Inc., Houston, TX (US);
Inventor:
Paul Crawford, Houston, TX (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K 15/03 (2006.01);
U.S. Cl.
CPC ...
F16K 15/03 (2013.01); Y10T 137/7901 (2015.04);
Abstract
The invention comprises a flapper check valve assembly in which a flapper coated with an elastomeric seal is pivotably attached to a swing arm, and further in which the swing arm is pivotably attached to a retainer ring permitting two degrees of freedom of motion. The retainer ring is mounted in a check valve body. A novel mounting of the flapper to the swing arm ensures the flapper seals the pipeline against backflow.