Dispensing apparatus with discharge assistant and rotary dispens

Details Dispensing apparatus with discharge assistant and rotary dispens Dispensing apparatus with discharge assistant and rotary dispens

1980-03-31

1982-05-04

Weidenfeld, Gil

Dispensing

With discharge assistant

With biasing means for discharge assistant and/or its casing

13762547, 222387, 222449, 222452, 222469, 239331, G01F 1102, B65D 8854

Patent

active

043278450

ABSTRACT:
An apparatus for dispensing measured quantities of viscous material from a pressurized supply source including a measuring cylinder having a spring loaded piston therein and a rotary valve for alternately communicating the measuring cylinder with the supply source and with a discharge outlet. The rotary valve member has axially spaced O-ring seals to inhibit leakage from the ends of the valve member and an inlet seal for sealing against leakage from the pressurized inlet passage in a direction circumferentially of the rotary valve member.

REFERENCES:
patent: 720492 (1903-02-01), Sedberry
patent: 1673103 (1928-06-01), Cochin
patent: 1979428 (1934-11-01), Wheeler
patent: 2337321 (1943-12-01), Freeman
patent: 3189233 (1965-06-01), Wilson et al.
patent: 3198015 (1965-08-01), Smith
patent: 3405601 (1968-10-01), Clarke
patent: 3715062 (1973-02-01), Todd et al.

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