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. 02, 1979
Filed:
Jan. 06, 1977
Applicant:
Inventor:
Donn B Furlong, San Rafael, CA (US);
Assignee:
Ecodyne Corporation, Lincolnshire, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F28F / ;
U.S. Cl.
CPC ...
165179 ; 138 38 ; 138173 ; 165184 ;
Abstract
A plastic heat exchange tube for use in combination with large dry and wet/dry type cooling towers. The tube includes a tubular center portion around which an open ended channel portion spirals over substantially the entire length thereof, with the open end in communication with the interior of the center portion. The optimum channel portion height to pitch ratio is 1.5 to 1. A web portion extends through the center portion of the tube.