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:
Mar. 05, 1985
Filed:
Apr. 15, 1983
James P Baileys, Wyoming, MI (US);
Warren R Hedrick, Holland, MI (US);
Interpace Corporation, Parsippany, NJ (US);
Abstract
Linear sections (101) of a chimney assembly (100) each include concentric outer, intermediate and inner sleeves (102, 104, 106). The inner sleeve (106) is interconnected at its lower portion (140) to the intermediate sleeve (104) through spaced apart U-shaped clips (142), while the upper portion of the inner sleeve (106) is allowed to float. The inner sleeve (106) is thus spaced apart from the intermediate sleeve (104) with an insulative air gap (136) therebetween. The air gap (136) and the particular connective arrangement of the inner sleeve (106) to the intermediate sleeve (104) allows for both linear and radial thermal expansion of the inner sleeve (106) caused by high temperature waste flue gases, and also facilitates engagement of adjoining linear sections (101).