Fluid dispenser with a magnetically operable discharge opening

Details Fluid dispenser with a magnetically operable discharge opening Fluid dispenser with a magnetically operable discharge opening

1993-02-17

1994-03-15

Kashnikow, Andres

Dispensing

Automatic control

Delivery from source controlled by quantity in discharging...

222 58, 222504, 141114, 141DIG1, B67D 508

Patent

active

052940225

ABSTRACT:
A fluid dispenser comprises an open-topped flexible container (13) which tapers downwardly to a discharge opening (14). The container (13) is mounted on a load platform (11) of a load cell (10). The portion of the container (13) that forms the discharge opening (14) is between one permanent magnet (16) on the load platform (11) and another permanent magnet (17) which is fixed to the material of the container (13). The magnets (16 and 17) attract one another to close the discharge opening (14). An electro-magnetic actuator (18), spaced from the magnet (17), is operable on command from a computer (12) to attract the magnet (17) and open the discharge opening (14). The computer (12) controls a shut-off valve (18) to control filling of the container (13) in accordance with the weight read out from the load cell (10).

REFERENCES:
patent: 4450987 (1984-05-01), Boettcher et al.
patent: 4601411 (1986-07-01), van Overbruggen
patent: 4605297 (1986-08-01), Livingston et al.
patent: 4626241 (1986-12-01), Campbell et al.
patent: 4646784 (1987-03-01), de Leeuwe
patent: 4804118 (1989-02-01), Mullen et al.
patent: 4848594 (1989-07-01), Bjorkengren et al.
patent: 4944428 (1990-07-01), Gmur et al.
patent: 4958665 (1990-09-01), Iwano
patent: 5193593 (1993-03-01), Denis et al.

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