Apparatus for the volumetric metering of substances and use of t

Details Apparatus for the volumetric metering of substances and use of t Apparatus for the volumetric metering of substances and use of t

1997-02-05

2000-01-04

Fetsuga, Robert M.

Dispensing

With discharge assistant

With discharge volume varying means

222152, 22218906, 222306, 222434, 222438, 141 65, B65D 8854

Patent

active

060100389

ABSTRACT:
In an apparatus for the volumetric metering of fluid, pasty and/or powdery substances, in particular for separating small amounts of substance from a delivery flow, by means of an adjustable-volume measurement chamber which is connected to a feed conduit and which is provided with an outlet, a capillary measurement conduit (22) is connected as the measurement chamber to a vacuum conduit (33). In particular cases the measurement conduit can be acted upon by conveyor air, but in the normal case it is provided with a metering needle which is displaceable therein and whose free needle end (19) delimits the measurement chamber at one end. In addition a movable sealing body (56) is to be associated as a closure element with the mouth opening (23) of the measurement conduit (22), that serves as the outlet, which sealing body can be connected to a closure device (50) which is limitedly rotatable about a pivot means (52). The sealing body (56) is to be provided on an arm (51) of a closure flap (50) which is of a rocker-like configuration and whose other arm (48) is pivotably connected to a control member (44).

REFERENCES:
patent: 2540059 (1951-01-01), Stirn et al.
patent: 4337880 (1982-07-01), Rozmus
patent: 4671430 (1987-06-01), Dinius
patent: 5797435 (1998-08-01), Wada

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