Dispensing – Axially rotary and longitudinally movable tubes – sleeves – or... – Axial discharge
Patent
1993-04-19
1994-04-26
Shaver, Kevin P.
Dispensing
Axially rotary and longitudinally movable tubes, sleeves, or...
Axial discharge
B65D 4728
Patent
active
053059328
ABSTRACT:
There is disclosed a press on dispensing cap for containers which can be opened and closed by a limited angular rotation. The cap is press fitted onto the neck of a container such as a tube, and the neck of the container has a plurality of discontinuous spiral tracks which receive lugs carried on an inner skirt of the cap to permanently retain the cap, and to permit extension and retraction of the cap upon twisting. Preferably the lugs have a plurality of closely spaced ribs on their inside surface which ride against the neck wall, thereby reducing the frictional resistance of the cap to rotation. The cap has a dispensing orifice which seals about a central boss on the end of the neck, and two additional seals which engage against sealing surfaces of the tube neck. One seal is a circular rim on the underside of the cap which seals against a circular rim on the end of the neck, opposed to that on the cap. Another seal is an annular lip on the inside wall of the skirt of the cap which slides against the neck of the tube.
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Seda International Plastics
Shaver Kevin P.
LandOfFree
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