Patent ID: 6164499
Filing Date: 2000-12-26
Classification: B01F,B05B,Y10T

Abstract:
A paint colorant dispenser comprising a reservoir for holding paint colorant, a dispensing nozzle, a pump and a valve, the valve comprising:a) a housing having a bore and first, second and third ports in an inner wall of the bore, the first port in fluid communication with the reservoir, the second port in fluid communication with the pump and the third port in fluid communication with the nozzle;b) a spool member in the bore, the spool member rotatable about a longitudinal axis;c) a sealing member on the spool member, the sealing member comprising a thin member curved to conform generally with the inner wall of the bore;d) a spring in the spool member, the spring forcing the sealing member against the inner wall of the bore;wherein, when the spool member is in a first position the first and second ports are in fluid communication with one another and the sealing member seals closed the third port and when the spool member is rotated to a second position the second and third ports are in fluid communication with one another and the sealing member seals closed the first port.