Dosing nozzle assembly and process for dosing liquid

Details Dosing nozzle assembly and process for dosing liquid Dosing nozzle assembly and process for dosing liquid

1996-09-17

1998-07-14

Kashnikow, Andres

Fluid sprinkling, spraying, and diffusing

With means causing intermittent interruption of supply to...

239324, 239574, 137853, 222309, 222380, B05B 108, B05B 130, B65D 8854

Patent

active

057791473

ABSTRACT:
The present invention relates to a nozzle assembly for dosing liquid while preventing spillage or dripping between the dosing. This nozzle assembly includes a dosing chamber (4) has an inlet (21), a piston housing wherein a piston plunger (5) is disposed, and an outlet (22) communicating with a distribution channel (10), a first one-way valve to open the inlet (21) when the dosing chamber (4) is being filled and to close the inlet (21) when a dose is being emptied out from the dosing chamber (4) into the distribution channel. The nozzle assembly furthermore comprises a second one-way valve (3) and a pressure release valve (23) to open a distribution channel outlet (27) when pressurized to a desired pressure. This pressure release valve (23) has an elastic cover (19) tightly fitted around the distribution channel outlet (27) and a distribution chamber having one or more needles (13) through which the liquid is dosed. The invention also relates to a process for dosing of a liquid while preventing dripping between the doses.

REFERENCES:
patent: 4095722 (1978-06-01), Miller
patent: 4410108 (1983-10-01), Minard
patent: 4846379 (1989-07-01), Warburton et al.
patent: 5027983 (1991-07-01), Wakabayashi et al.
patent: 5305783 (1994-04-01), Debush
patent: 5407102 (1995-04-01), Freudinger et al.
patent: 5660205 (1997-08-01), Epstein

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