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.

Date of Patent:
Jul. 17, 2007

Filed:

May. 26, 2005
Applicants:

Kenneth W. Cowans, Fullerton, CA (US);

William W. Cowans, Fullerton, CA (US);

Glenn W. Zubillaga, Canyon Lake, CA (US);

Inventors:

Kenneth W. Cowans, Fullerton, CA (US);

William W. Cowans, Fullerton, CA (US);

Glenn W. Zubillaga, Canyon Lake, CA (US);

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F25B 41/00 (2006.01); F28F 1/36 (2006.01);
U.S. Cl.
CPC ...
Abstract

Systems and methods for heat exchange in accordance with the invention define adequately long-interchange distances for two fluids by wrapping a tube containing a first fluid about the wall of an inner cylindrical tank, within a gap formed with a second concentric tank. A second fluid is transmitted in the space defined between the turns of the tube and the two walls, providing effective short length thermal interchange through the tube walls. The tube is in the line contact with both tank walls and the fluids can flow rapidly over an adequately long length, so that high efficiency is provided in a low cost system.


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