Chemical apparatus and process disinfecting – deodorizing – preser – Control element responsive to a sensed operating condition
Patent
1984-04-19
1988-03-29
Lacey, David L.
Chemical apparatus and process disinfecting, deodorizing, preser
Control element responsive to a sensed operating condition
422102, 422119, 210137, 210431, B01L 1100
Patent
active
047342625
ABSTRACT:
A reaction mixture handling device comprises a chamber for containing a reaction mixture having an open upper end for introduction of the mixture or components thereof, and an outlet at its lower end. Below the inlet a body of filter material is located together with reaction mixture retaining structure for retaining the reaction mixture in the chamber and which is rendered inoperative on application of a positive pressure to the chamber or a negative pressure to the underside of the filter material. The reaction mixture retaining structure may comprise an impermeable or hydrophobic member which is positioned between the outlet and the filter material and closes the outlet, part of the filter material which is made impermeable or hydrophobic and closes the outlet, or an openable member located beneath the filter material. Application of the differential pressure either causes the filter material to move away from the outlet to open the outlet, or opens the member to permit liquid to flow.
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Park, Biomaterials, Plenum Press, New York, 1979,
pp. 171-172.
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