U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Heat spreader system for cooling heat generating components

Patent 5943211 Issued on August 24, 1999. Estimated Expiration Date: Icon_subject May 2, 2017. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

2845472

3004406

3339373

3801241

Apparatus for cooling tools of glass-forming machines by evaporation of a cooling liquid
Patent #: 4056949
Issued on: 11/08/1977
Inventor: Hahn

Magnetically coupled gear pump construction
Patent #: 4111614
Issued on: 09/05/1978
Inventor: Martin ,   et al.

Gear pump with suction shoe at gear mesh point
Patent #: 4127365
Issued on: 11/28/1978
Inventor: Martin ,   et al.

Vaporization cooled electrical apparatus
Patent #: 4129845
Issued on: 12/12/1978
Inventor: Benke

Split magnet drive
Patent #: 4163164
Issued on: 07/31/1979
Inventor: Pieters

Three gear pump with module construction
Patent #: 4165206
Issued on: 08/21/1979
Inventor: Martin ,   et al.

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Inventors

Assignee

Application

No. 848998 filed on 05/02/1997

US Classes:

361/699, Liquid62/64, By contacting with liquid62/259.2, With electrical component cooling165/80.4, Liquid cooled174/15.1, With cooling or fluid feeding, circulating or distributing257/E23.088, Cooling by change of state, e.g., use of heat pipes (EPO)257/E25.023, Device consisting of plurality of semiconductor or other solid-state devices or components formed in or on common substrate, e.g., integrated circuit device (EPO)361/695Fan or blower

Examiners

Primary: Thompson, Gregory D.

Attorney, Agent or Firm

International Class

H05K 007/20

Abstract

An isothermal equilibrium system takes point sources of heat generated by the operation of heat generating components and spreads the heat throughout the system where the heat may be dissipated. An atomizer for atomizing a liquid coolant, is positioned inside a sealed housing. The atomized liquid coolant is distributed as a thin film over the surface of the heat generating components and the wall of the sealed housing. Heat is transferred from the surface of the heat generating components by vaporization of at least a portion of the thin film of liquid coolant. The coolant vapor condenses on the housing and other cool surfaces and returns to the liquid state. The system heat is then removed from the outer surfaces of the housing using conventional heat transfer mechanisms including free or forced air convection and/or circulation of liquid coolant over the exterior of the housing. If additional cooling is desired, heat exchanger tubes may be included inside the sealed housing. An input liquid or gaseous coolant is circulated through the exchanger tubes. Heat is transferred to the coolant and then conducted away from the heat generating component housing.

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