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. 09, 1990
Filed:
Mar. 27, 1989
Applicant:
Inventor:
Randall R Coffman, Palatine, IL (US);
Assignee:
Norman Dryer Company, Inc., Crystal Lake, IL (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F26B / ;
U.S. Cl.
CPC ...
34133 ; 34242 ; 34139 ; 118 19 ; 118 20 ;
Abstract
A seal system for preventing leakage of air from the tumbler cylinder of a dryer. The system includes a pair of spaced seal members derfining a zone through which air is withdrawn from the cylinder. End seals are provided at each end of the cylinder, each end seal comprising a laterally shiftable annular ring abutting the respective end.