Bottles and jars – Closures – Having warning means or means impeding closure removal
Patent
1991-08-20
1992-05-26
Elkins, Gary E.
Bottles and jars
Closures
Having warning means or means impeding closure removal
215230, 215219, 215216, B68D 5502
Patent
active
051159295
ABSTRACT:
A child-resistant screw-on closure is provided with the closure having a closure state indicating pattern and formed as a three-element closure. The outer cap is arranged for rotation relative to the centrally located middle cap and cooperates in a torquing manner with the middle cap so that, as the closure is rotated to close the container, an indication of full sealing is viewable through a window of the outer cap only when such sealing is complete. Similarly, during rotative unsealing or opening of the container, the outer cap is the first to move relative to the remainder of the closure so that the indication of complete sealing of the container is no longer viewable through the window just as soon as rotative opening of the container has begun. Thus, the closure provides the user with a readily apparent indication as to whether the container closure is in its fully closed or container-sealing condition.
REFERENCES:
patent: 3888375 (1975-06-01), Gerk
patent: 4220247 (1980-09-01), Kramer
patent: 4365722 (1982-12-01), Kramer
patent: 4410098 (1983-10-01), Dubs et al.
patent: 4705181 (1987-11-01), Burke et al.
patent: 4872570 (1989-10-01), Harding
Elkins Gary E.
Schwarz Paul A.
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