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:
Sep. 11, 1984
Filed:
Apr. 23, 1982
Applicant:
Inventor:
Evsey Rabinovich, Erie, PA (US);
Assignee:
Emco Wheaton, Inc., Conneaut, OH (US);
Primary Examiner:
Int. Cl.
CPC ...
B65B / ;
U.S. Cl.
CPC ...
141-4 ; 141 66 ; 141 98 ; 141326 ; 141302 ; 137320 ; 138 89 ; 220 / ; 220281 ; 220352 ; 222 91 ; 285158 ;
Abstract
A device for attachment to a tank in the event of an emergency requiring drainage of the tank. The device is adapted to be coupled to a strategically located port on the tank and upon coupling therewith automatically ejects a plug to establish an outflow circuit from the tank. The device includes a flow limiting feature which is calibrated to avoid the buildup of an excessive vacuum in the tank, provisions to introduce an inert replacement gas into the tank, and structure to limit the pressure of the replacement gas.