Multi-component housing

Details Multi-component housing Multi-component housing

1993-09-09

1995-05-09

Yuen, Henry C.

Ventilation

Having both inlet and outlet airways

With air pump means

454187, F24F 900

Patent

active

054135290

ABSTRACT:
A multi-compartment outer housing, positioned in an ambient fluid having an ambient pressure P, has a compressor developed fluid flow through the outer housing compartments. A multi-chamber inner housing is positioned in a housing compartment having a fluid pressure greater than the ambient pressure P. This inner housing has a sealed equipment chamber, a still-fluid chamber, and an optically transparent wall between the equipment and still-fluid chambers. The still-fluid chamber has a restricted port at its distal or lee end which places the still-fluid chamber in fluid communication with the housing compartment. The inner housing is oriented relative to a fluid egress port in this housing compartment so that the optically transparent wall, the equipment chamber and the fluid egress port are placed in a line-of-sight alignment through the restricted port of the still-fluid chamber. This orientation of the inner housing further minimizes solid particle build up within the still-fluid chamber, and an electrostatic charge build up on the optically transparent wall.

REFERENCES:
patent: 4838150 (1989-06-01), Suzuki et al.
patent: 4873914 (1989-10-01), Hirayama
patent: 4917004 (1990-04-01), Okamoto et al.
patent: 4923352 (1990-05-01), Tamura et al.
patent: 5086422 (1992-02-01), Hagiya et al.

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