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. 18, 2003
Filed:
May. 02, 2002
Nils T. Ottestad, Tønsberg, NO;
K.V. Aerner Process Systems AS, Lysaker, NO;
Abstract
A protection system arranged to prevent a large trans-membrane pressure difference over a pressure sensitive membrane ( ) fitted in a pressure resistant chamber ( ), wherein the membrane forms a physical barrier between a liquid and a gas mixture carried through the chamber ( ), the protection system includes two shut-off valves ( ) provided in the liquid inlet and outlet lines respectively, a buffer tank ( ) provided in the line between one of the shut-off valves ( ) and the pressure resistant chamber ( ), a pressure equalizing valve ( ) provided between the gas inlet line ( ) and the buffer tank ( ) and a pressure sensing valve ( ) for measuring the pressure difference over the membrane ( ) and which activates the shut-off valves ( ) once this pressure difference exceeds a predetermined value.