Method and apparatus for sterilizing with a heavier-than-air gas

Details Method and apparatus for sterilizing with a heavier-than-air gas Method and apparatus for sterilizing with a heavier-than-air gas

1974-10-21

1976-03-16

Richman, Barry S.

Fluent material handling, with receiver or receiver coacting mea

With conveying means to supply successive receivers

Horizontal axis conveyer

21 91, 21103, 21104, 21DIG4, 141 95, A61L 100, A61L 300, A61L 1304

Patent

active

039443876

ABSTRACT:
Sterilizing apparatus and method in which a heavier-than-air sterilizing gas is introduced at a substantially constant flow rate into the bottom of the sterilizing chamber. Air in the chamber is displaced upwardly by the gas and out of the chamber through a restricted exhaust which is open throughout the gas introduction period. The pressure at the top of the chamber is monitored and the restricted exhaust is closed when the pressure has increased to a preselected level, the pressure level being directly related to the gas concentration. The gas inlet remains open for a time to provide a chamber pressure which will help to displace air trapped in the material being sterilized.

REFERENCES:
patent: 3068064 (1962-12-01), McDonald
patent: 3163494 (1964-12-01), Kaye
patent: 3341280 (1967-09-01), Eolkin
patent: 3443884 (1969-05-01), Linder
patent: 3454352 (1969-07-01), Lamboy et al.
patent: 3454353 (1969-07-01), Bjork
patent: 3481692 (1969-12-01), Linder
patent: 3537812 (1970-11-01), Gallagher et al.

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