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:
Dec. 05, 1995
Filed:
Jul. 01, 1994
Kenneth W Cowans, Fullerton, CA (US);
Acurex Corporation, Anaheim, CA (US);
Abstract
To dissipate heat generated internally in integrated circuit units, both an active refrigeration system and a passive refrigeration system are coupled to a heat sink that engages the integrated circuit unit. A cold probe insertable into the heat sink has an interior heat exchanger and receives high pressure but ambient temperature refrigerant which is subcooled and expanded to provide cold liquid refrigerant about the interior heat exchanger. As thermal energy from the circuit unit evaporates refrigerant, the refrigerant passes back to a power refrigeration unit for recirculation. A passive backup unit functions if the cold probe operation fails for some reason by boiling off a second refrigerant in a chamber at the heat sink and condensing the gases within a spaced apart air heat exchanger. Refrigerant that recondenses within the air heat exchanger flows by gravity back into the boil off chamber.