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:
Nov. 08, 1994
Filed:
May. 03, 1993
Applicant:
Inventor:
Jack Walker, Louisville, KY (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E04G / ; E02D / ;
U.S. Cl.
CPC ...
52514 ; 220230 ; 206818 ; 52DI / ;
Abstract
A device for patching chemical tanks or tank cars comprised of a housing, at least a pair of electromagnets, and a seal which is secured to a pressure system which is secured to the housing, wherein the pressure system permits the seal to be extended from the housing against the surface of a tank or tank car.