Browse Prior Art Database

Zero Temperature Gradient Heating Cooling Apparatus

IP.com Disclosure Number: IPCOM000089338D
Original Publication Date: 1977-Oct-01
Included in the Prior Art Database: 2005-Mar-04
Document File: 2 page(s) / 38K

Publishing Venue

IBM

Related People

Horne, DE: AUTHOR [+2]

Abstract

An apparatus 10 for cooling and heating a bath contains a single element 12 that serves the dual function of a cooling unit and a heating unit. The apparatus 10 has an insulated outer wall 14 and motor driven stirrer shaft with pump or mixing blades 16. The single element 12 is a coiled configuration of tubing, preferably thin wall stainless steel, that is connected to refrigerant control means 18 and heater control means 20. A refrigerant is passed through the element 12 when cooling is required. A low voltage-high current is passed through the element 12 when heating is required. Electrical insulation block(s) 21 in the line prevent current flow back through the cooling element. The performance of this apparatus in an oil bath having low heat loss provides temperature control on the order of 0.005 Degrees C or better.

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Zero Temperature Gradient Heating Cooling Apparatus

An apparatus 10 for cooling and heating a bath contains a single element 12 that serves the dual function of a cooling unit and a heating unit. The apparatus 10 has an insulated outer wall 14 and motor driven stirrer shaft with pump or mixing blades 16. The single element 12 is a coiled configuration of tubing, preferably thin wall stainless steel, that is connected to refrigerant control means 18 and heater control means 20. A refrigerant is passed through the element 12 when cooling is required. A low voltage-high current is passed through the element 12 when heating is required. Electrical insulation block(s) 21 in the line prevent current flow back through the cooling element. The performance of this apparatus in an oil bath having low heat loss provides temperature control on the order of 0.005 Degrees C or better.

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