Method and apparatus for dispensing viscous materials

Details Method and apparatus for dispensing viscous materials Method and apparatus for dispensing viscous materials

1975-11-10

1977-06-21

Reeves, Robert B.

Dispensing

Resilient wall

Supply container delivering to receiving chamber

222209, 222214, 222420, 222262, 222504, 141117, B65D 3700

Patent

active

040306402

ABSTRACT:
A method and apparatus for dispensing small quantities of viscous materials in a reliable and accurately repeatable manner are described. A deformable tube which couples material in a reservoir to a discharge port is pinched by a valve at the same time the reservoir is pressurized. The material is dispensed in correspondence with the amount of reduction of the tube volume by the pinch valve. A simultaneous depressurizing of the material in the reservoir and the opening of the pinch valve enables a suck-back for a crisp cut-off of the material.

REFERENCES:
patent: 2884165 (1959-04-01), Moeller
patent: 3208643 (1965-09-01), Phillips
patent: 3369717 (1968-02-01), Campbell
patent: 3434632 (1969-03-01), Batrow

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