Chemical apparatus and process disinfecting – deodorizing – preser – Process disinfecting – preserving – deodorizing – or sterilizing – Using direct contact steam to disinfect or sterilize
Patent
1983-10-31
1985-10-15
Richman, Barry S.
Chemical apparatus and process disinfecting, deodorizing, preser
Process disinfecting, preserving, deodorizing, or sterilizing
Using direct contact steam to disinfect or sterilize
53167, 134 2215, 222148, 422 28, 422110, 422115, 422116, 422295, A61L 200, A61L 204
Patent
active
045473390
ABSTRACT:
A steam sterilization system for a filling machine having dispensing nozzles connected to a source of product supply, the sterilizing system including a novel autoclave apparatus and a novel condensate purge system. The autoclave structure causes sterilizing steam to flow downward through the inside of the dispensing nozzle to its open ended bottom where it reverses and flows upward between the inside face of a reversing tube and the outside face of the dispensing nozzle to a series of holes through the sidewall of the reversing tube where it emerges and goes down between the outside face of the reversing tube and the inside face of the autoclave shell thereafter passing down into a steam and condensate line. Condensate formed within the dispensing tube drips out the bottom of the dispensing tube and through an aperture at the bottom of the reversing tube, the condensate effectively sealing the bottom of the reversing tube to steam. The condensate purge system includes a back pressure and constant bleed valve having its intake connected to the autoclave steam and condensate line, its outlet connected to a discharge line, and an actuatable by-pass purge valve connected from an internal point in the bleed valve to the discharge line. The purge valve is controllably actuated to effectively drain the bleed valve to prevent the back build up of condensate in the system without interfering with the sterilization operation.
REFERENCES:
patent: 3964526 (1976-06-01), Sindermann
patent: 4171604 (1979-10-01), Weikert
patent: 4216185 (1980-08-01), Hopkins
patent: 4218265 (1980-08-01), Fuchs et al.
patent: 4353398 (1982-10-01), Weiler et al.
Adtech, Inc.
Heaney B. P.
Richman Barry S.
Udell Walter B.
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