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:
May. 31, 1988
Filed:
Jun. 22, 1987
Andrew M Haslett, Stockton-on-Tees, Cleveland, GB;
John B Johnson, Stockton-on-Tees, Cleveland, GB;
Imperial Chemical Industries PLC, London, GB;
Abstract
A pressure control arrangement for a fluid line in a system, particularly a pressure swing adsorption system, wherein, in the event of a valve or control system malfunction, there is a risk of the fluid line being subject to an overpressure in an excess of its maximum design pressure, has a normally open valve, a flow restricting member, and a pressure sensor disposed in the fluid line. The pressure sensor is disposed upstream of the flow restricting member and arranged to sense the pressure in the line and to actuate the valve to close the line in the event of the sensed pressure exceeding a predetermined limit. The predetermined limit is above the normal operating pressure range of the fluid line but below the maximum overpressure to which there is a risk of the line being subject, and that portion of the fluid line upstream of the flow restricting member is constructed to have a maximum design pressure at least equal to the maximum overpressure.