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:
Oct. 07, 2025
Filed:
Jul. 27, 2021
Applicant:
Samson Aktiengesellschaft, Frankfurt am Main, DE;
Inventor:
David Wagner-Stürz, Mühltal, DE;
Assignee:
Samson Aktiengesellschaft, Frankfurt, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16K 37/00 (2006.01); F16K 31/126 (2006.01);
U.S. Cl.
CPC ...
F16K 37/0083 (2013.01); F16K 31/1262 (2013.01); F16K 37/0041 (2013.01);
Abstract
The invention relates to a method for detecting a spring breakage in a preloaded drive of a control valve. The method is based on the fact that the pressure which must be applied to achieve a certain valve member position falls significantly after the breakage or failure of the spring. The breakage of a spring in a preloaded drive can thus be detected reliably using the sensor system already present in the control valve, moreover without having to disrupt or interrupt operation.