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:
Oct. 22, 1985
Filed:
Dec. 11, 1981
Applicant:
Inventor:
Russell W Hoeffken, Belleville, IL (US);
Assignee:
Snyder General Corporation, Red Bud, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23P / ; B21D / ; F24H / ;
U.S. Cl.
CPC ...
2915 / ; 29507 ; 2915 / ; 291574 ; 126119 ; 285 47 ; 2853824 ; 285222 ; 165178 ;
Abstract
A plate assembly is secured to a heat exchanger unit for a hot air furnace at each of one or more apertures in the unit by expanding a flange extending around an aperture on the plate within the aperture in the unit to cause such flange to conform to the exact shape of the aperture in the unit and form a leak-proof joint between the heat exchanger unit and plate assembly.