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. 09, 2020
Filed:
Jan. 25, 2019
Applicant:
Curtis Roys, Fredericksburg, TX (US);
Inventors:
Rodney Herman, Austin, TX (US);
Raymond J Hengel, Round Rock, TX (US);
Curtis Roys, Fredericksburg, TX (US);
Assignee:
Other;
Primary Examiner:
Int. Cl.
CPC ...
F16K 13/00 (2006.01); F16N 23/00 (2006.01); F04B 53/10 (2006.01); F16K 15/04 (2006.01); F04D 29/063 (2006.01); F16N 21/00 (2006.01);
U.S. Cl.
CPC ...
F16N 23/00 (2013.01); F04B 53/10 (2013.01); F04B 53/1002 (2013.01); F04B 53/1015 (2013.01); F04D 29/063 (2013.01); F16K 15/042 (2013.01); F16K 15/044 (2013.01); F16N 21/00 (2013.01); Y10T 137/7838 (2015.04); Y10T 137/88054 (2015.04);
Abstract
A check valve supplies fluid to a system and includes a fluid barrier protects the sealing elements and surfaces of the check valve preventing degradation from any backflow of gas and debris from the system to which fluid is supplied.