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. 08, 1985
Filed:
Aug. 24, 1981
Applicant:
Inventors:
Haruo Uehara, Saga, JP;
Hiroyuki Sumitomo, Osaka, JP;
Assignee:
Hisaka Works, Ltd., Osaka, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F28F / ;
U.S. Cl.
CPC ...
165166 ; 165170 ;
Abstract
Improvements in the condensing heat transfer surface of a condenser which handles organic working fluids whose surface tension is not more than 35 dyne/cm as gas mediums to be condensed. The improvements comprise the formation of a plurality of transversely spaced vertically extending grooves on the condensing heat transfer surface on which the gas medium condenses. The pitch of the grooves is about 1-2 mm and the depth is about 0.3-0.6 mm.