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:
Jan. 20, 1981
Filed:
Jan. 10, 1979
Applicant:
Inventor:
Charles T Graves, Brookfield, OH (US);
Assignee:
General American Transportation Corporation, Chicago, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
B65D / ; F16K / ;
U.S. Cl.
CPC ...
220 / ; 73334 ; 116276 ; 137 / ; 137559 ; 220 / ;
Abstract
A safety device for a pressure vessel having an opening therein in which is positioned an upstanding base secured around the vessel opening with a frangible diaphragm covering the opening. A protective cap covers the base with the frangible diaphragm and has a central aperture therein covered by a transparent material providing continuous visibility of the frangible diaphragm. The protective cap has an internal annular seat to retain the frangible diaphragm in place and spaced apart fasteners maintain the cap fixedly connected to the base.