Self-closing powder cap

Details Self-closing powder cap Self-closing powder cap

1998-06-10

1999-09-14

Kashnikow, Andres

Dispensing

With resilient biasing means for outlet element

222517, 222558, 222512, 222559, B67D 300

Patent

active

059508817

ABSTRACT:
A self-closing cap comprising a base having one or more holes and a lid movably mounted about the base. The lid has one or more holes, and is capable of occupying a first open position and a second closed position. In the first open position, the holes of the base align with the holes of the lid. In the second closed position, the holes of the base do not align with the holes of the lid. A spring means is provided between the base and the lid in order to automatically place the lid in the closed position. Further, the underside of the lid is provided with one or more protrusions which seal the holes of the base when the lid is in the closed position.

REFERENCES:
patent: 2025188 (1935-12-01), Wilson
patent: 2330939 (1943-10-01), Wilson
patent: 2590437 (1952-03-01), Maves
patent: 2620098 (1952-12-01), Kinley
patent: 4458818 (1984-07-01), Hansen
patent: 5310081 (1994-05-01), McCabe
patent: 5339993 (1994-08-01), Groya et al.

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