Inflatable elastomeric valve having a spherical configuration

Details Inflatable elastomeric valve having a spherical configuration Inflatable elastomeric valve having a spherical configuration

1994-04-04

1995-05-09

Rivell, John

Fluid handling

Destructible or deformable element controlled

Destructible element

137362, 251 611, 138 93, F16L 55128, F16K 710

Patent

active

054131367

ABSTRACT:
A portable inflatable valve is provided for disposition in a floor drain opening to prevent the undesired flow of toxic liquids into the drain opening. The valve includes a rigid support structure adapted to rest on the floor surface above the drain opening. A pressurized gas cylinder is located below the rigid support structure for pressuring a surrounding elastomeric sock into sealing contact with the hole side surface. Actuation of the gas cylinder is accomplished by a manual plunger arranged for downward motion to puncture a foil closure on the upper end of the gas cylinder.

REFERENCES:
patent: 3107687 (1963-10-01), Howe
patent: 3129726 (1964-04-01), Moore
patent: 3542057 (1970-11-01), Stalano
patent: 4021265 (1977-05-01), Guenther
patent: 4026329 (1977-05-01), Thompson
patent: 4671518 (1987-06-01), Retz
patent: 5033511 (1991-07-01), Cacciuttolo et al.
patent: 5131433 (1992-07-01), Sion et al.
patent: 5209266 (1993-05-01), Hiemsoth

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