Dispensing – Axially rotary and longitudinally movable tubes – sleeves – or... – Axial discharge
Patent
1986-01-02
1987-03-03
Skaggs, H. Grant
Dispensing
Axially rotary and longitudinally movable tubes, sleeves, or...
Axial discharge
215330, B67D 506
Patent
active
046469494
ABSTRACT:
A captive dispensing cap construction having a body part that is adapted to be carried on a container neck, and a screw cap part that is captive on the body part and is turnable thereon between a retracted, fully screwed on sealing position and an extended, discharge position. Cooperable threads are provided on the parts, to enable the cap part to be moved toward its retracted sealing position. The body part has a pair of upwardly facing cam tracks that are disposed opposite one another, and which are engaged respectively by a pair of interior lugs on the underside of the cap part. During unscrewing of the latter, the lugs ride up the tracks, thereby shifting the cap part axially upward toward its discharge position. Adjacent the lower ends of the cam tracks are abutment shoulders disposed in the path of movement of the lugs, providing tactual resistance to the initial unscrewing of the cap part. The arrangement is such that any tendency for the cap part to inadvertently turn from its fully on, sealing position causes the lugs to engage the abutment shoulders, such engagement resisting further turning movement. As a consequence, there is minimized the possibility of the cap part unscrewing by itself, as might otherwise occur from vibration during passage of the cap construction through automatic capping equipment, or during shipping and handling.
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Huppert Michael S.
Lehmann H. Gibner
Lehmann K. Gibner
Skaggs H. Grant
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