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:
Jun. 01, 2004
Filed:
Sep. 26, 2002
Kevin Bergevin, Kingston, CA;
E. I. du Pont de Nemours and Company, Wilmington, DE (US);
Abstract
Heat exchanger structures for conducting fluid are provided in the form of multiple spaced-apart polymeric tubes embedded in foil laminate which includes metal and at least one polymer. Useful polymers are polyolefins, polyesters and polyamides. The metal provides barrier protection making the structure suitable for refrigeration uses as well as providing an extended heat transfer surface between the tubes for when the elements are used for heat transfer, and the polymer on the foil permits it to be sealed closely around the tubes to improve heat transfer. The tubes are of a geometry which provides burst strength, so that the metal can be quite thin.