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:
Nov. 30, 1999
Filed:
Dec. 18, 1997
Dean L Smith, Pittsford, NY (US);
Edmund J Sobresky, Batavia, NY (US);
Roger S Kerr, Brockport, NY (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
An improved heat exchanger (10) has an extruded, multi-tiered heat sink (22) having a very high heat transfer coefficient structurally associated with a compact, high air velocity air moving means (14). Heat sink (22) has a first tier (56) formed by first fins (34) in a first base element (24) closely spaced apart from third fins (40) in an extruded bridging element (30). A second tier (60) of heat sink (22) is formed by second fins (52) in a second base element (26) closely spaced from fourth fins (46) opposing the third fins (40) in the bridging element (30). Air moving means (16) of the invention employs a backward curved impeller (14) driven by a compact planar dc motor (80) adapted to yield higher than normal impeller speeds with superior thermal transfer performance.