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:
Aug. 01, 1995
Filed:
Jan. 31, 1994
Richard Frantom, Richmond, MI (US);
Robert J Bishop, Sterling Heights, MI (US);
Robert Kremer, Fraser, MI (US);
Klaus F Ocker, Fraser, MI (US);
Stephen P McGarry, Rochester Hills, MI (US);
Will E Rogers, Rochester, MI (US);
AlliedSignal Inc., Morristown, NJ (US);
Abstract
A post activation device to indicate that pressure the existed within a pressure vessel just prior to the opening of the pressure vessel and the resulting loss of pressurization, having a diaphragm, plug or piston (62, 130, 160, 330) capable of rupturing, moving or deforming in response to a pressure differential thereacross above one or more low limit values and for providing an indication of the pressure within the pressure vessel just prior to its being opened, and a support member (70), within the pressure vessel for supporting the diaphragm, plug or piston means.