Chemical apparatus and process disinfecting – deodorizing – preser – Process disinfecting – preserving – deodorizing – or sterilizing – Using direct contact steam to disinfect or sterilize
Patent
1997-01-14
1999-01-12
Thornton, Krisanne
Chemical apparatus and process disinfecting, deodorizing, preser
Process disinfecting, preserving, deodorizing, or sterilizing
Using direct contact steam to disinfect or sterilize
422 1, 422297, 422300, A61L 208
Patent
active
058583041
ABSTRACT:
A pressure vessel (12) has a chamber (10) closed by a door (14). Steam, from a steam source (38) is selectively supplied to the interior of the pressure vessel to sterilize received items. The pressure vessel has an electric heater (24) for a steam passage or jacket (50) extending circumferentially therearound to heat the pressure vessel wall above the saturation temperature to prevent condensation within the pressure vessel. A vacuum jacket (20) surrounds the pressure vessel and the heater to provide an annular vacuum insulation region. A vacuum pump (30) is operated, as necessary, to maintain the vacuum between the vacuum jacket and the pressure vessel and is utilized when appropriate to draw a vacuum within the pressure vessel (12).
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Steris Corporation
Thornton Krisanne
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