Viscous product dispenser

Details Viscous product dispenser Viscous product dispenser

1988-03-15

1989-10-10

Shaver, Kevin P.

Dispensing

With discharge assistant

With material supply container and discharge assistant with...

222383, 222256, 222512, 222517, 1375124, B67D 542

Patent

active

048725960

ABSTRACT:
A two-chamber viscous product dispenser has an internal valve element which includes integral inlet and outlet check valves for the valving of product into the pump chamber and from the pump chamber through a stationary spout. The outlet valve may be in the form of a flap valve having resilient webs for spring biasing the valve to its closed position. Otherwise, the outlet valve may be plate like capable of deforming when opening.

REFERENCES:
patent: 4179051 (1979-12-01), Thomas
patent: 4301948 (1981-11-01), Czech et al.
patent: 4485943 (1984-12-01), Czech
patent: 4515298 (1985-05-01), Czech
patent: 4564130 (1986-01-01), Eulenburg
patent: 4651904 (1987-03-01), Schuckmann
patent: 4684044 (1987-08-01), Foster
patent: 4691847 (1987-09-01), Ford et al.

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