Closure for a cylindrical opening having improved venting means

Details Closure for a cylindrical opening having improved venting means Closure for a cylindrical opening having improved venting means

1982-09-28

1984-08-21

Shoap, Allan N.

Receptacles

Closures

With condition responsive vent or valve

220203, 220315, 220327, 220378, 251322, 251354, B65D 5116, F16K 2404

Patent

active

044665504

ABSTRACT:
A closure for a cylindrical opening having improved venting means including a plug body for removably positioning within and sealing a cylindrical opening, the body having an axial opening therethrough and having means when the plug is within the cylindrical opening to seal against pressure, a tubular valve element slidably received in the plug body opening, the element having at least one radial opening adjacent to and spaced from its closed inner end, a spring normally biasing the tubular element towards the plug outer end so that the radial opening is sealed by the wall of the plug member axial opening and a push rod for displacing the tubular element inwardly to expose the radial opening to the interior of the plug body to vent fluid pressure.

REFERENCES:
patent: 1424250 (1922-08-01), Kelly
patent: 1463735 (1923-07-01), Varrieuv
patent: 2192945 (1940-03-01), Toney
patent: 2686652 (1954-08-01), Carlson et al.
patent: 3294118 (1966-12-01), Wieden et al.
patent: 3766947 (1973-10-01), Osburn

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