Method and apparatus for controlling the infeed of air into the

Details Method and apparatus for controlling the infeed of air into the Method and apparatus for controlling the infeed of air into the

1992-06-04

1993-07-06

Focarino, Margaret A.

Conveyors: fluid current

Having means to introduce booster fluid into conveyor

Plural booster inputs

406 11, 406 14, 406 93, 406 94, B65G 5366

Patent

active

052248020

ABSTRACT:
In a method of controlling the infeed of air from an auxiliary conduit of a pneumatic conveyor installation into a tubular conveyor conduit into which compressed gas is introduced from a connecting conduit and the latter, upon a rise in pressure occurring upstream of the mouth thereof in the conveyor direction, in the conveyor conduit, is opened with a supply of air from an auxiliary conduit at high pressure, said supply of air into the conveyor conduit is interrupted in the event of pressure equalisation building up therein, by a control member which opens and closes the connecting conduit and which is guided in a path of movement which can be acted upon by at least one secondary flow of the auxiliary conduit, and a closing force is applied in a pulse-wise fashion to the control member.

REFERENCES:
patent: 4715748 (1987-12-01), Krambrock
patent: 4861200 (1989-08-01), Lubbehusen et al.
patent: 4909676 (1990-03-01), Heep et al.
patent: 4955761 (1990-09-01), Federhen et al.

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