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:
Nov. 11, 2025
Filed:
Feb. 25, 2021
Applicant:
Rotarex S.a., Lintgen, LU;
Inventors:
Assignee:
ROTAREX S.A., Lintgen, LU;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16K 1/30 (2006.01); F16K 1/46 (2006.01); F17C 13/04 (2006.01);
U.S. Cl.
CPC ...
F16K 1/302 (2013.01); F16K 1/46 (2013.01); F17C 13/04 (2013.01); F17C 2205/0323 (2013.01); F17C 2205/0382 (2013.01); F17C 2223/036 (2013.01);
Abstract
A valve closing member for cooperating with a valve seat, comprising: a body a front circular face forming a central protrusion along a longitudinal axis of the body; a seal forming a ring fitted on the front circular face and around the central protrusion; and a retainer forming a ring surrounding the seal and attached to the body for retaining the seal on the body; wherein the seal shows a radially inner surface contacting a radially outer surface of the central protrusion, the radially inner surface and radially outer surface being both cylindrical, the radially outer surface showing at least one circular groove into which the seal is radially pressed by the retainer.