Rotary airlock valve using a single seat

Details Rotary airlock valve using a single seat Rotary airlock valve using a single seat

1993-10-29

1995-07-11

Shaver, Kevin P.

Dispensing

With discharge assistant

Movable or conveyer-type trap chamber

G01F 1100

Patent

active

054313112

ABSTRACT:
A vaneless rotor airlock valve using a single seat. In the preferred embodiment a hollow rotor is supported by two bearings to rotate within a first bore of the valve housing, which includes intersecting transverse bores. The rotor includes an opening which extends a selected distance along the axis of the rotor and a distance of less than 90 degrees in a plane perpendicular to the axis. The ends of the second bore terminate at the input port and the output port of the valve. Sealing contact is maintained between the outer surface of the rotor and a non-metallic seat member to maintain pressure isolation between the input port and the output port as the rotor is rotated to alternately position the rotor in a fill and a discharge position. All portions of the interior of the valve are free draining under the force of gravity.

REFERENCES:
patent: 2907499 (1959-10-01), Agronin
patent: 3139996 (1964-07-01), Welty
patent: 3370335 (1968-02-01), Freed
patent: 3750902 (1973-08-01), Starrett
patent: 4316559 (1982-02-01), McLemore
patent: 4684040 (1987-08-01), Jonovic et al.
patent: 5029517 (1991-07-01), Sigmon

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