Chemical apparatus and process disinfecting – deodorizing – preser – Process disinfecting – preserving – deodorizing – or sterilizing – Using disinfecting or sterilizing substance
Patent
1976-07-06
1980-04-01
Moy, Joseph Man-Fu
Chemical apparatus and process disinfecting, deodorizing, preser
Process disinfecting, preserving, deodorizing, or sterilizing
Using disinfecting or sterilizing substance
422114, 422 26, 422300, 220201, 137468, A61L 300, A61L 500, A61L 700
Patent
active
041961668
ABSTRACT:
A sealed container provided with a valve opening and a resilient valve member self-biased into closing position. The valve is manually openable by a lever which is held in the open position by a rigid fuse-like element which melts after being subjected to sterilizing temperatures long enough to sterilize the container and its contents. The valve then closes sealing the container. The valve and a gasket between the container lid and base will permit leakage out of the box to permit the withdrawal of steam from the container when a vacuum is applied to the container exterior but will prevent reverse flow so that a vacuum is maintained within the container once one is created. The vacuum may be released by opening the valve, which simultaneously cocks it for the next sterilizing operation.
An alternate approach includes a disposable, resilient valve member which plugs into a hole in the wall of the container and covers a valve orifice into the container. A washer-like fuse element fits into the valve member to bias it into an open position. When the fuse melts after sterilization, the valve member will snap into closed position.
REFERENCES:
patent: 2008835 (1935-07-01), Rawcliffe
patent: 2455305 (1948-11-01), Heva
patent: 2591767 (1952-04-01), Andres
patent: 2698022 (1954-12-01), Fahnoe
patent: 2829796 (1958-04-01), Dieny
patent: 3561918 (1971-02-01), Ray
patent: 3621951 (1971-11-01), Schmid
patent: 3762595 (1973-10-01), Green et al.
patent: 4038034 (1977-07-01), Nakajima
Sanderson Roger S.
Whelchel Robert C.
Man-Fu Moy Joseph
Sanderson Roger S.
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