Dispensing – Axially rotary and longitudinally movable tubes – sleeves – or... – Axial discharge
Patent
1988-08-18
1989-09-19
Huppert, Michael S.
Dispensing
Axially rotary and longitudinally movable tubes, sleeves, or...
Axial discharge
222549, B65D 4700
Patent
active
048673544
ABSTRACT:
The invention provides a twist open/close outer cap internally threaded to fit the threads on a special bottle neck in cooperative sealing attachment with an inner cap inserted into the bottle neck. Structural features and a stop provide bi-directional controlled rotation of the outer cap. A beveled top fluid release plug fitting a correspondingly beveled dispensing aperture and interacting insert structure provides excellent sealing characteristics. The outer cap is a short cylindrical member with an opened bottom and a shallow concave top surface. A flow directing inverted funnel-like protrusion is formed around a dispensing aperture in the center of the outer cap top. Depending from the underside of the outer cap top surface, is a cylindrical sleeve fitting a receiving chamber formed by two base attached walls in the second cap inserted into the neck of the bottle. Screwing the outer cap up and down on threads cooperative with neck threads on the bottle, opens and closes the dispensing aperture by inserting and withdrawing the plug fitting the aperture. The positioning of stops on the outer bottle neck surface and the inner wall of the outer cap control the dispensing opening and are set in manufacturing according to the viscosity of the material to be dispensed.
REFERENCES:
patent: 2542350 (1951-02-01), Paulsen
patent: 2673661 (1954-03-01), Barton
patent: 3123259 (1964-03-01), Musel et al.
patent: 3175741 (1965-03-01), Porter
patent: 3216630 (1965-11-01), Stull
patent: 3240404 (1966-03-01), Porter et al.
patent: 3339773 (1967-09-01), Stull
patent: 3406880 (1968-10-01), Stull
patent: 3407967 (1968-10-01), Stull
patent: 4087023 (1978-05-01), Szczepanski
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