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:
Jul. 12, 1977
Filed:
Dec. 08, 1975
Applicant:
Inventor:
James E Roth, Festus, MO (US);
Assignee:
Intertherm, Inc., St. Louis, MO (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F24H / ;
U.S. Cl.
CPC ...
219366 ; 219370 ; 219375 ; 1261 / ; 165122 ; 4152 / ; 4174 / ;
Abstract
Instead of constructing an air furnace cabinet as a separate unit and then installing the furnace components such as electrical heating elements, controls and a blower, in the present invention a blower scroll assembly and a heating element assembly are first constructed using flanged sheet metal panels as wide as the interior of the cabinet. The cabinet is then assembled about and integrally reinforced by these assemblies. Lines of securement of the flanges of these assemblies divide the exterior cabinet walls into smaller parts and afford to the cabinet strength and structural rigidity.