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:
Jan. 19, 1988
Filed:
Dec. 22, 1986
Applicant:
Inventors:
John D Ream, Wichita, KS (US);
William J Blalock, Wichita, KS (US);
Assignee:
Metal-Fab, Inc., Wichita, KS (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16L / ;
U.S. Cl.
CPC ...
285 47 ; 2851331 ; 285302 ; 285373 ; 285346 ;
Abstract
An expansion and length adjustment joint for use with a double walled metal chimney, the chimney having an inner flue wall and an outer casing wall, the adjustment joint having an inner sliding sleeve with a flange at one end thereof. An upper flue wall connecting band is sealingly disposed around the inner sliding sleeve flange and a flange of the inner flue wall. A gasket retaining collar is secured against the inner sliding sleeve, thus retaining a flue gas seal therealong with thermal expansion.