Apparatus for delivering, at high frequency, measured quantities

Details Apparatus for delivering, at high frequency, measured quantities Apparatus for delivering, at high frequency, measured quantities

1994-11-16

1996-10-22

Recla, Henry J.

Fluent material handling, with receiver or receiver coacting mea

Automatic control of flow cutoff or diversion

141102, 141115, 141157, B65B 130, B65B 328

Patent

active

055667333

ABSTRACT:
Two electrovalves (7A, 7B) are grouped in a same block (7) and disposed in parallel between a supply conduit (5) and a distribution conduit (6). Each electrovalve is provided with a micrometric adjustment screw (9A, 9B) which can be actuated from outside the block. When one of the electrovalves is in operation to deliver successive identical quantities of liquid, the other electrovalve is adjusted as a function of a new value and, during changeover, it suffices to switch the electrovalves. The same block (7) can contain a third electrovalve (7C) for blowing gas under pressure to expel the remaining drops within the distribution conduit. The liquid and the gas are two phases of the same fluid.

REFERENCES:
patent: 3951186 (1976-04-01), Mencacci
patent: 4202387 (1980-05-01), Upton
patent: 4350186 (1982-09-01), Schalkowsky et al.
patent: 4460026 (1984-07-01), Hurley et al.
patent: 4790359 (1988-12-01), Whitford
patent: 5131440 (1992-07-01), Quinn

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