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:
Apr. 02, 2002
Filed:
Dec. 20, 1999
Alberto Mannoni, Turin, IT;
Maurizio Parrino, Montaldo Torinese, IT;
Enrico Simonato, Turin, IT;
Anthony Joseph Cesaroni, Unionville, CA;
Myron Bruce Babcock, Oakville, CA;
Shailesh Ratilal Doshi, Kingston, CA;
Gordon James Clarke, Markham, CA;
Mahender Kumar Khurana, Kingston, CA;
Kenneth Earl Stevens, Kingston, CA;
E. I. du Pont de Nemours and Company, Wilmington, DE (US);
Abstract
A heat exchanger comprising plates of thermoplastic tubes arranged in a way which minimizes the thermal resistance at the outer surface of the tubes preferably to not more than 5 times the resistance to heat transfer at the inside of the tubes. The tubes are arranged in the tube plates in groups that can be flat or slightly wavy, such as undulating in a periodic manner, or offset with open spaces facing groups of tubes in alternating rows. This is done in a way that maximizes turbulence outside the tubes and minimizes vortices which can trap coolant in the interstices between tubes.