Collapsible wall closure for dispensers

Details Collapsible wall closure for dispensers Collapsible wall closure for dispensers

1980-10-31

1984-06-12

Rolla, Joseph J.

Dispensing

Movable material discharge guide

Foldable, bendable, collapsible or flexible

222530, 138119, 251 4, B65D 4722

Patent

active

044536534

ABSTRACT:
A collapsible wall closure for a dispenser nozzle comprised of a stiff but resilient tube section adapted to be bent over and latched in the bent position to provide a fluid tight closure of the nozzle by collapse of the tube wall. The interior of the nozzle tube is undercut in the region of the wall collapse on either side of the tube along the fold line of the tube, in order to provide complete sealing collapse of the tube wall in the bent position. The undercuts are comprised of shallow grooves extending axially along the tube interior thinning the tube wall thickness in the region of the wall collapse. A pair of closures are incorporated in a cap closure particularly adapted to an ammonia hydroxide container for connection to vapor-type diazo reproduction machines.

REFERENCES:
patent: 2985341 (1961-05-01), Howell
patent: 3055556 (1962-09-01), Hester
patent: 3181743 (1965-05-01), Libit et al.
patent: 3244331 (1966-04-01), Kharasch
patent: 3392887 (1968-07-01), Bross

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