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. 11, 2022
Filed:
Sep. 27, 2021
Flowserve Management Company, Irving, TX (US);
Paul Jeffrey Parish, Spanish Fork, UT (US);
Michael P. Nelson, Lehi, UT (US);
Flowserve Management Company, Irving, TX (US);
Abstract
A bellows seal valve includes a pressurization port that can be used to apply a compensating pressure to the 'atmosphere' side of the bellows, i.e. the side of the bellows that is opposite to the process fluid. The atmosphere side can be on the interior or exterior of the bellows. The compensating pressure can be greater than the process fluid pressure, to ensure that any leakage will be of pressurizing fluid into the process fluid or into the environment, and that no process fluid will escape into the environment. The pressure or flow rate of the pressurizing fluid can be monitored to detect bellows and packing leaks. A pressurizing fluid exit port can be provided, so that the pressurizing fluid can be circulated through the valve, thereby moderating the bellows temperature under conditions of extreme process fluid temperature.