Dispenser for media

Details Dispenser for media Dispenser for media

1997-02-19

1999-03-23

Douglas, Steven O.

Dispensing

With discharge assistant

With movable nozzle interconnected therewith

222341, G01F 1100

Patent

active

058848193

ABSTRACT:
A dispenser (1) comprises for its plunger chamber (13) an outlet valve (20) which after opening on the actuating stroke continues to remain open for a time during the subsequent return stroke due to a delay means (30) so as to ensure a more or less complete venting or filling of the plunger chamber (13). At the end of the delay period the closure maintained in the open position position by friction surface areas (37, 38) is released and automatically jumps back into its closed position. After venting, the effectiveness of the delay means (30) diminishes so that in normal operation substantially only a pressure dependent opening and closing of the outlet valve (20) is provided for.

REFERENCES:
patent: 5105994 (1992-04-01), Jouillat et al.
patent: 5192006 (1993-03-01), Van Brocklin et al.
patent: 5316198 (1994-05-01), Fuchs et al.
German search report dated Aug. 6, 1996 in German Appl. No. 196 06 703.0.
European search report dated Jun. 6, 1997 in European Appl. No. 97101769.4.

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