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. 08, 2022
Filed:
Sep. 08, 2020
Applicant:
Magic Plastics, Inc., Valencia, CA (US);
Inventor:
Anna Sarno, Valencia, CA (US);
Assignee:
Magic Plastics, Inc., Valencia, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F16K 15/00 (2006.01); F16K 31/06 (2006.01); F16K 15/03 (2006.01);
U.S. Cl.
CPC ...
F16K 31/0655 (2013.01); F16K 15/03 (2013.01); Y10T 137/7898 (2015.04);
Abstract
A check valve has an internal gate having an adjustable retention force, such that in the event that if the differential pressure between the upstream and downstream pressure changes, the force required to allow flow through the valve may be adjusted without removal of the valve from the piping system.