Rotary valve

Details Rotary valve Rotary valve

1988-01-15

1988-08-30

Chambers, A. Michael

Dispensing

Agitator and/or ejector operating on material in either...

Mounted on or in conveyer or movable trap chamber

422219, 137240, G01F 1122

Patent

active

047670282

ABSTRACT:
A rotating metering valve having a transverse passage which carries a slidable piston reciprocating once for each revolution of the valve for metering particulate material from an inlet port to an outlet port is provided with a dumbbell shaped piston and a purge fluid port in the transverse passage to ensure reliable operation, even while metering small quantities of particulate.

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patent: 4687381 (1987-08-01), Sumain et al.
patent: 4690804 (1987-09-01), Rohlfing

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