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. 17, 1989
Filed:
Aug. 31, 1987
Applicant:
Inventor:
Koji Sawada, Tokyo, JP;
Assignee:
Nippon Engineer Service Kabushiki Kaisha, Tokyo, JP;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B65G / ;
U.S. Cl.
CPC ...
405 53 ; 73 492 ; 405 52 ; 405128 ;
Abstract
An underground tank having a leak detection mechanism, wherein a narrow gap is provided between an inner tank in which a liquid is to be contained and an outer tank covering the inner tank, a conduit is opened into the gap and a float is provided in the conduit, so that a leak of tank can be detected from the position of the float. A thin sheet is wound on the outside surface of the inner tank so that the narrow gap is defined between the inner tank and the outer tank.
Sawada, Koji. (1989). Underground tank with leak detection mechanism (U.S. Patent No. 4798496). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4798496
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile