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. 29, 1977
Filed:
Jun. 14, 1976
Applicant:
Inventor:
James S Bolt, Rockford, IL (US);
Assignee:
Alco Standard Corporation, Valley Forge, PA (US);
Primary Examiner:
Int. Cl.
CPC ...
F27D / ;
U.S. Cl.
CPC ...
432179 ; 431351 ; 432222 ;
Abstract
The hot flue gas expelled from a furnace is used to heat air which is supplied to the burners that fire the furnace. The heated air is delivered to each burner through its ceramic burner block rather than through its cast iron burner body so as to avoid the need of making the body out of expensive alloys capable of withstanding high temperatures.