Dispensing – With discharge assistant – Container with follower
Patent
1996-11-27
1999-03-30
Kashnikow, Andres
Dispensing
With discharge assistant
Container with follower
222386, 22215361, 22215309, B67D 542, B67D 532, B67D 533
Patent
active
058877649
ABSTRACT:
An apparatus for maintaining a sealed environment in the pressurized barrel reservoir injector which comprises a plastic closure cap that mates with a barrel reservoir with a dispensing tip. The closure cap has a top wall and a circular outer side wall extending downward from the top wall, and an annular sealing rib for engagement with an annular planar surface. Importantly, the cap also has three locking tabs that have a ascending horizontal top surface that engage external tabs on the reservoir, and also having an interior groove that houses a series of three nodes that are evenly spaced and positioned slightly ahead of the leading end of each locking tab. The external threading tabs of the reservoir pass counter-clockwise through the groove and pass over the nodes. The nodes act to maximize tension of the cap locking tab against the end of the external reservoir tab thereby preventing loosening of the cap.
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patent: 3780734 (1973-12-01), Wulff
patent: 3831816 (1974-08-01), Pauliukonis
patent: 4595002 (1986-06-01), Michaels et al.
patent: 4717384 (1988-01-01), Waldeisen
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patent: 5238153 (1993-08-01), Mass et al.
Anderson Mark L.
Ennis, III James F.
Kashnikow Andres
Quinalty Keats
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