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

Method and device for cooling in closed spaces

Patent 5671805 Issued on September 30, 1997. Estimated Expiration Date: Icon_subject June 13, 2016. 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

Natural convection cooling system for electronic components
Patent #: 4535386
Issued on: 08/13/1985
Inventor: Frey, Jr. ,   et al.

Housing for electronic equipment connectable with another housing of like construction adjacent thereto
Patent #: 4758925
Issued on: 07/19/1988
Inventor: Obata ,   et al.

Semiconductor converter
Patent #: 4901138
Issued on: 02/13/1990
Inventor: Kushibiki, et al.

Laminar flow fan and electrical apparatus incorporating fan
Patent #: 5419679
Issued on: 05/30/1995
Inventor: Gaunt, et al.

Electronic equipment having integrated circuit device and temperature sensor Patent #: 5477417
Issued on: 12/19/1995
Inventor: Ohmori, et al.

Inventors

Assignee

Application

No. 656294 filed on 06/13/1996

US Classes:

165/80.3, Air cooled, including fins165/104.33, Cooling electrical device257/721, With gas coolant361/695, Fan or blower361/724Cabinet-type housing

Examiners

Primary: Rivell, John
Assistant: Atkinson, Christopher

Attorney, Agent or Firm

Foreign Patent References

  • 2906363 DE 08/13/1980
  • 6094652 JP 07/13/1981
  • 9171148 JP 09/13/1984
  • 0119763 JP 06/13/1985
  • 5160592 JP 06/13/1993
  • 0984088 SU 12/13/1982

International Class

F28F 007/00

Foreign Application Priority Data

1993-12-22 SE

Abstract

A system for cooling heat generating components in a closed space, for example, telecommunications equipment in rack cabinets in an enclosure includes a cooling unit operating with combined displacing air distribution and gravity air flow. Cooled air is distributed at low speed at a bottom of the closed space to contact the components from below. The cooled air displaces warmer air around and in the components for cooling. The warmer air moves upward in the space and is taken into the cooling unit at an upper intake opening. Air flow in the space is at a speed sufficiently low to avoid turbulence and mixing of the cooled and warmed air flows.

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