Variable flow dispensing device

Details Variable flow dispensing device Variable flow dispensing device

B - Operations, Transporting

05

B

222/30.3

B05B 7/12 (2006.01) B05B 7/04 (2006.01) B29B 7/74 (2006.01)

Patent

CA 1211741

ABSTRACT OF THE DISCLOSURE A dispensing device for mixing and dispensing multi-component liquid mixtures is described. The dispensing device comprises valve assemblies including a tapered valve plug and a correspondingly tapered valve seat and, downstream from said valve assemblies, respective orifices which provide access to a mixing and dispensing nozzle. The cross-sectional area of the orifices is about 1.7 x 10-4 to 2.0 x 10-3 sq. in. and the ratio of the cross-sectional area of the valve opening at any level of operation to the cross-sectional area of its respective downstream orifice is less than about 3Ø The device generally is configured as a dispensing "gun" and provides a capability for controlled variation in the flow rate of the liquid components and mixing of the components at a consistent volume ratio.

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