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:
Dec. 26, 1989
Filed:
Jun. 20, 1986
Applicant:
Inventors:
Otto Z Vago, Burns, TN (US);
Ernest Wenczl, Nashville, TN (US);
Assignee:
State Industries, Inc., Ashland City, TN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F24H / ;
U.S. Cl.
CPC ...
126361 ; 29458 ; 291574 ; 165133 ;
Abstract
A water heater tank assembly having a shell with top and bottom heads welded in opposite ends thereof. The heads have aligned flue tube mounting openings therein in which metal collar members are welded. Flue tubes are mounted in and welded to the collar members. The collar members serve as a heat sink to prevent damage to the glass lining on the shell, head members and flue tubes during the various welding operations.