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:
Jul. 15, 2025
Filed:
Sep. 18, 2023
Acorn Engineering Company, Inc., City of Industry, CA (US);
Edward Barry Knoles, Duarte, CA (US);
Luis Fernando Prieto, Chino, CA (US);
Alan Long Thien Du, Covina, CA (US);
Pui Yuen Ng, Eastvale, CA (US);
Arturo Gomez, Moreno Valley, CA (US);
Adrian Alexander Filip, Corona, CA (US);
Acorn Engineering Company, Inc., City of Industry, CA (US);
Abstract
A spring stop arrangement for a check valve may include: a check seat defining a flow path; a clapper assembly connected to the check seat and configured to obstruct the flow path, the clapper assembly including: a clapper; and a seal retainer detachably mounted to the clapper; a cam arm connected to the check seat, the cam arm including a stopper; and a torsion spring operatively connected to the cam arm so as to apply a biasing force to the cam arm against the direction of fluid flow. When the seal retainer is dismounted from the clapper, the stopper may be configured to contact the check seat so as to prevent rotation of the cam arm.