Combination breather-drain

Details Combination breather-drain Combination breather-drain

1982-01-06

1983-06-14

Hall, George T.

Receptacles

Closures

Vent in closure

220 88A, B65D 5116

Patent

active

043878296

ABSTRACT:
The combination breather-drain is designed to be disposed in the bottom of an explosion proof housing to facilitate the drainage of moisture from the housing by gravity while simultaneously providing an atmospheric communication with the interior of the housing through a separate passage. The passage for the drainage of moisture is defined by a loose threaded connection between a hollow cylindrical plug and a fitting secured to the bottom of the housing. The threaded connection is so dimensioned as to prevent the passage of a flame through the threaded connection. A plurality of baffles or a solid threaded plug are provided in the interior of the hollow cylindrical plug to provide an air passage so dimensioned as to prevent the passage of the flame therethrough.

REFERENCES:
patent: 3841520 (1974-10-01), Bryant et al.
patent: 3931455 (1976-01-01), Burnell

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