Dispensing – With discharge assistant – Motor operated
Patent
1987-06-26
1988-11-29
Rolla, Joseph J.
Dispensing
With discharge assistant
Motor operated
222380, 222493, 222496, B67D 500
Patent
active
047875372
ABSTRACT:
A high pressure metering apparatus for ejecting a fluid such as a polishing aste comprises a housing having a storage chamber, a spring-loaded, stroke-adjustable compressed air piston-cylinder device with a plunger, an injection nozzle, and an adjustable valve device closing the storage chamber off from the injection nozzle. The valve device includes a valve ball and a valve plate. A piston element is fixed to the housing, to which piston element the valve ball is concentrically fixed, and on which a cylinder element is displaceably mounted. The cylinder element is closed by the valve plate of the valve device, which has a valve seat situated opposite the valve ball. The injection nozzle is located downstream of the valve plate and is fixed to the cylinder element. A compression spring bears against the cylinder element and a clamping cap. The valve plate is thus fixed in the cylinder element independently of the injection nozzle, which is removable by a screwed connection passing through a front opening of the clamping cap. The injection nozzle can then be replaced without disturbing the valve setting.
REFERENCES:
patent: 1403197 (1922-01-01), Rieck
patent: 1977869 (1934-10-01), Ulm
patent: 2142081 (1939-01-01), Olive
patent: 2169291 (1939-08-01), Rotter
patent: 3076583 (1963-02-01), Eberspacher
patent: 3758005 (1973-09-01), Christine et al.
patent: 3828986 (1974-08-01), Roth
patent: 4690310 (1987-09-01), Rasmussen
Hau-Simex Giesserei-und Oberfalchentechnik Vetriebsgesellschaft
Pedersen Nils E.
Rolla Joseph J.
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