Pressure-regulating device for use in storage, transportation an

Details Pressure-regulating device for use in storage, transportation an Pressure-regulating device for use in storage, transportation an

1987-05-05

1989-05-02

Hall, George T.

Receptacles

Closures

With condition responsive vent or valve

220373, B65D 5116

Patent

active

048260355

ABSTRACT:
A pressure-regulating device for impact-resistant containers used for storage, transportation and disposal of hazardous waste materials, is herein disclosed, which comprises a vent fixed to the lid of said container to keep the gaseous phase pressure inside said container at a positive pressure of 50% or less of the pressure resistance of said container, the vent being columnar and made of an alumina-based sintered ceramic and having a porosity of 50% or less, a pore diameter range of 0.4 to 1.4 .mu. and a length (mm)/cross-sectional area (mm.sup.2) ratio of 2 to 10.

REFERENCES:
patent: 3663363 (1972-05-01), Crouthamel et al.
patent: 3846235 (1974-11-01), Jones et al.
patent: 3957576 (1976-05-01), Boyer et al.

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