Liquid dispensing device

Details Liquid dispensing device Liquid dispensing device

1980-05-09

1986-04-01

Marmor, Charles A.

Dispensing

With cleaning means

Element extending through dispenser outlet

222518, 222559, 239583, B67D 506

Patent

active

045792550

ABSTRACT:
A liquid dispensing device is disclosed in which there is a movable needle operable to open and close a valve seat located within a nozzle of the dispensing device. The needle valve is guided by longitudinal bushing surfaces contained within the nozzle bore. The nozzle has very nearly zero volumetric capacity internally of the nozzle within which liquid may collect between the closed valve seat and the outlet orifice of the nozzle. This "zero capacity" nozzle contains two needle valve engageable seating surfaces, the first of which is operable to close off flow through the nozzle from the dispensing device, and the second of which subsequently closes the nozzle orifice.

REFERENCES:
patent: 427152 (1890-05-01), Buttz
patent: 1901979 (1933-03-01), Meusy
patent: 1962520 (1934-06-01), O'Malley
patent: 3146949 (1964-09-01), Reiners
patent: 3923252 (1975-12-01), Warning, Sr. et al.

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