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, 1991
Filed:
Jun. 11, 1990
Applicant:
Inventor:
Brian C Jones, Windsor, CT (US);
Assignee:
Thermodynetics, Inc., Windsor, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F28D / ;
U.S. Cl.
CPC ...
165156 ; 62394 ; 62399 ; 165169 ;
Abstract
A compact and efficient heat exchanger is defined by three coaxial tubes, the intermediate tube being spirally fluted and in intimate contact with inner and outer tubes. The resulting three walled tubular structure defines a spiral vent passage and double wall separation between inner and outer flow paths. The three walled structure may be formed into an evaporator coil for use in a water cooler.