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:
Mar. 27, 2002
Applicant:
Inventor:
Richard P. Carr, Naperville, IL (US);
Assignee:
The Penray Companies, Inc., Wheeling, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F25D 1/702 ; C09K 5/00 ;
U.S. Cl.
CPC ...
F25D 1/702 ; C09K 5/00 ;
Abstract
A temperature control system is described for producing and maintaining temperatures in a pre-defined space within a pre-defined temperature range. A working fluid comprising an aqueous solution of 1-3 propanediol is circulated through a heat transfer system in thermal communication with both the working fluid and the pre-defined space to produce and maintain the temperature in the pre-defined space that is within the pre-defined temperature range.