Chemical apparatus and process disinfecting – deodorizing – preser – Control element responsive to a sensed operating condition – Control element is fluid pressure sensitive
Patent
1992-04-16
1993-10-05
Warden, Robert J.
Chemical apparatus and process disinfecting, deodorizing, preser
Control element responsive to a sensed operating condition
Control element is fluid pressure sensitive
422117, 422301, 206 51, 220209, 134901, B65D 5116, G05D 1600, A61L 200
Patent
active
052502660
ABSTRACT:
An appliance for disinfecting contact lenses or the like wherein the lenses are disposed within a disinfecting solution which liberates the gas during the disinfecting action, includes a container body for immersion of the lenses within the disinfecting solution and a removable cap closing the container body. The appliance further includes a normally closed vent conduit for passage of the pressurized affluent gas from the container body through the cap, and within the vent conduit is a check valve including a disc member having a slit therethrough which opens for vent discharge of the gas with sufficient pressure on the disc exerted by the gas during passage through the vent conduit, after which the slit recloses to vent any subsequent leakage of the solution therethrough. In a preferred embodiment, the venting disc is clamped between upper and lower portions of the cap, so that the lower cap portion provides a supporting seat against which the closed slit is engaged and from which the slit disengages and opens to form a one-way venting valve. Passageways through the lower cap portion provide passage of the pressurized gas against the valve disc and with exertion of sufficient gas pressure, the disc slit opens to the venting gas discharged.
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Ciba Vision Corporation
Trembley T. A.
Warden Robert J.
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