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:
Aug. 06, 1991
Filed:
Feb. 26, 1990
Randall R Coffman, Palatine, IL (US);
Norman Dryer division of G. A. Braun, Inc., Syracuse, NY (US);
Abstract
A dryer for extracting moisture from goods and recirculating at least a portion of the air withdrawn from a tumbler cylinder located within the dryer. The dryer includes an air distribution system for supplying heated air to the tumbler cylinder, withdrawing air from the cylinder, and recirculating at least a portion of the air withdrawn from the cylinder. The air distribution system includes a burner tube and a heating passageway disposed about a portion of the burner tube, the passageway being connected for directing recirculated air about the burner tube to heat the recirculated air. The air circulating system also includes an air flow tube concentric with a portion of the burner tube for directing ambient air about the burner tube for cooling the burner tube.