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:
Feb. 08, 1983
Filed:
Sep. 29, 1980
Applicant:
Inventor:
Elmer W Rothrock, Hinsdale, IL (US);
Assignee:
Chicago Bridge & Iron Company, Oak Brook, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K / ;
U.S. Cl.
CPC ...
137576 ; 137395 ; 62 45 ;
Abstract
A storage tank having internal and external spaced apart walls defining a first liquid storage space between the two walls and a second liquid storage space surrounded by the internal wall; each of the internal and external walls being joined to a bottom; at least one fluid conduit in fluid flow communication with and between the first and second storage spaces; and a valve capable of blocking fluid flow through the fluid conduit from the second storage space to the first storage space which is actuated by a sudden loss of liquid from the first storage space to outside of the tank.