Dispensing – Movable material discharge guide – With flow controller or closure
Patent
1975-09-18
1977-05-10
Tollberg, Stanley H.
Dispensing
Movable material discharge guide
With flow controller or closure
222538, 222541, B65D 4710
Patent
active
040223574
ABSTRACT:
A retractable pouring spout closure for dispensing liquid products from containers in a safe and controlled manner. The closure consists of a plastic nozzle with integrally molded captive cap for friction fit engagement within a container wall opening. A tearing diaphragm seals off the upper end of the nozzle and has a cylindrical wall depending from its lower surface within the confines of the nozzle throat. A retractable pouring spout has its upper end tightly surrounding the depending cylinderical wall in stored position so as to require breaking of the diaphragm seal prior to unplugging the spout.
REFERENCES:
patent: 1124495 (1915-01-01), Mahn
patent: 2774523 (1956-12-01), Rieke
patent: 3235146 (1966-02-01), Parish et al.
patent: 3310206 (1967-03-01), Littlefield
patent: 3804305 (1974-04-01), Rieke
American Flange & Manufacturing Co. Inc.
Shannon John P.
Tollberg Stanley H.
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