Retractable pouring spout closure

Details Retractable pouring spout closure Retractable pouring spout closure

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

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