Pressure compensating element for electronic device enclosure

Details Pressure compensating element for electronic device enclosure Pressure compensating element for electronic device enclosure

1989-05-11

1990-05-01

Lowrance, George E.

Receptacles

Closures

Vent in closure

B65D 5116

Patent

active

049211242

ABSTRACT:
A pressure equalizing element for an electronic device enclosure, e.g. for a control device under the hood of a vehicle, features a water-tight but air-transmitting region (21) which equalizes pressure between the interior airspace of the enclosure and ambient airspace. The element preferably includes a porous PTFE foil element which is bowed so that water will not pool on it and clog the air pores. Thus, it will be operative, and can be installed, in any desired orientation. The foil is protected against puncture by surrounding support elements of metal and/or plastic and is adapted to be automatically mass-produced and tested prior to installation.

REFERENCES:
patent: 1426501 (1922-08-01), Parizek
patent: 3064668 (1962-11-01), Alkire
patent: 3199716 (1965-08-01), Price
patent: 3625389 (1971-12-01), Bortlow
patent: 4609126 (1986-09-01), Janda

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