Mixing head

Details Mixing head Mixing head

1989-04-28

1990-08-07

Jenkins, Robert W.

Agitating

Having interrelated feed and discharge means

366150, B01F 1502

Patent

active

049462849

ABSTRACT:
In a mixing head for mixing plural kinds of liquid materials, a first forward movement passage for opening a discharge control valve which control supplying the liquid materials into a mixing chamber, is ramified from a second forward movement passage for closing a circulation control valve which controls the circulation of the liquid materials, and extends across a spool of the circulation control valve. The spool is provided with a groove for opening the first forward movement passage when the circulation control valve is in a closed state. Further, a restriction passage having a check valve for keeping a working fluid from flowing into a first cylinder including a first piston of the discharge control valve, is formed to be communicated with the first cylinder at a side of the first forward movement passage and is ramified from the second forward movement passage.

REFERENCES:
patent: 4017242 (1977-04-01), Mercer
patent: 4749554 (1988-06-01), Proksa
patent: 4772129 (1988-09-01), Woitzel

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