Child resistant container-closure assembly
First Claim
1. A closure for a container having a neck with an access opening therein and means defining a locking rib on the outer surface of the neck interrupted at least at two circumferentially spaced locations to define gaps therein of predetermined differing arcuate dimensions, said closure including a cap having a top, a skirt depending from the outer edge of the top and at least a pair of primary locking lugs projecting radially inwardly from the skirt which in all positions, except one, engage under said locking rib to secure the cap in place, said primary lugs being of an arcuate span and circumferential spacing to register with said gaps in said one position and at least one auxiliary releasable locking lug of a shallower radial projection than said primary lugs engaging under said bead when said cap is in said one position, said auxiliary lug operable to snap over said bead in said one position when said cap is tilted relative to the neck of the container.
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Accused Products
Abstract
A closure for a container having a neck with an access opening therein and means defining a locking rib on the outer surface of the neck interrupted at least at two circumferentially spaced locations to define gaps therein or predetermined differing arcuate dimensions, said closure including a cap having a top, a skirt depending from the outer edge of the top and at least a pair of primary locking lugs projecting radially inwardly from the skirt which in all positions, except one, engage under said locking rib to secure the cap in place, said primary lugs being of an arcuate span and circumferential spacing to register with said gaps in said one position and at least one auxiliary releasable locking lug of a shallower radial projection than said primary lugs engaging under said bead when said cap is in said one position, said auxiliary lug operable to snap over said bead in said one position when said cap is tilted relative to the neck of the container.
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Citations
21 Claims
- 1. A closure for a container having a neck with an access opening therein and means defining a locking rib on the outer surface of the neck interrupted at least at two circumferentially spaced locations to define gaps therein of predetermined differing arcuate dimensions, said closure including a cap having a top, a skirt depending from the outer edge of the top and at least a pair of primary locking lugs projecting radially inwardly from the skirt which in all positions, except one, engage under said locking rib to secure the cap in place, said primary lugs being of an arcuate span and circumferential spacing to register with said gaps in said one position and at least one auxiliary releasable locking lug of a shallower radial projection than said primary lugs engaging under said bead when said cap is in said one position, said auxiliary lug operable to snap over said bead in said one position when said cap is tilted relative to the neck of the container.
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9. A closure for a container having a neck with an access opening therein and means defining a locking rib on the outer surface of the neck interrupted at circumferentially spaced locations to define at least three gaps therein of predetermined differing arcuate dimensions, two of said gaps being of approximately equal arcuate dimension and the third gap being of a greater arcuate dimension, said gaps being disposed about the circular neck of the container so that said two gaps are disposed in one semicircular segment of said neck and said third gap is disposed in the other semicircular segment, said closure including a cap having a top, a skirt depending from the outer edge of the top and at least a pair of primary locking lugs projecting radially inwardly from the skirt which in all positions, except one, engage under said locking rib to secure the cap in place, said primary lugs being of an arcuate span and circumferentail spacing to register with said gaps in said one position and at least one auxiliary releasable locking lug of a shallower radial projection than said primary lugs engaging under said bead when said cap is in said one position, said auxiliary lug operable to snap over said bead in said one position when said cap is tilted relative to the neck of the container.
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10. The combination of a closure and a container having a neck with an access opening therein, means defining a locking rib projecting radially outwardly from said neck interrupted at least at two circumferentially spaced locations to define gaps therein of predetermined differing angular dimensions and a radially outwardly projecting band below said locking rib of a greater diametral dimension than said locking rib to define a stepped configuration, said closure including a cap having a top, a skirt depending from the outer edge of the top and at least a pair of primary locking lugs projecting radially inwardly from the skirt which in all positions, except one, engage under said locking rib to secure the cap in place, said primary lugs being of an arcuate span and circumferential spacing to register with said gaps in said one position and at least one auxiliary releasable locking lug of a shallower radial projection than said primary lugs engaging under said bead when said cap is in said one position, said auxiliary lug operable to snap over said bead in said one position when said cap is tilted relative to the neck of the container, a tear band detachably secured to the lower edge of said skirt having a locking flange at its lower terminal edge engageable in a groove below said band, the diametral dimension of said flange being slightly less than said band and greater than said locking rib to facilitate assembly of said closure to the container.
- 11. A closure for a container having a neck with a circumferentially extending radially projecting bead having at least one gap therein, said closure comprising a top and a depending skirt, at least one primary locking lug projecting radially from the skirt operable to register with the gap in one removal position and at least one auxiliary locking lug projecting radially from the skirt in the same direction as said primary lug, said auxiliary locking lug being contiguous to one terminal end of said primary locking lug and being of a shallower radial projection than said primary locking lug.
- 15. A closure for a container having a neck with a circumferentially extending radial bead with at least two circumferentially spaced gaps therein, said closure comprising a top and a depending skirt, at least a pair of circumferentially spaced primary locking lugs projecting radially from the skirt operable to register with the gaps in one removal position and at least one auxiliary locking lug projecting radially from the skirt in the same direction as said primary locking lugs, said auxiliary locking lug disposed adjacent a primary locking lug and being of a shallower radial projection than said primary locking lug.
- 17. The combination of a closure and a container having a neck with an access opening therein and means defining a locking rib on the surface of the neck interrupted at least at one location to define a gap therein of predetermined arcuate dimension, said closure having a top, a circumferential skirt depending from the top and at least one primary locking lug projecting radially from the skirt which in all positions, except one, engages under said locking rib to secure the cap in place, said primary locking lug being of an arcuate span to register with said gap in said one position and at least one auxiliary releasable locking lug contiguous to at least one terminal end of said primary locking lug and of a shallower radial projection than said primary lug engaging under said bead when said cap is in said one position, said auxiliary locking lug operable to snap over said bead in said one position when said cap is tilted relative to the neck of the container.
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21. The combination of a closure and a container having a neck with an access opening therein and means defining a locking rib on the surface of the neck interrupted at least at one location to define a gap therein of predetermined arcuate dimension, said closure having a top, a circumferential skirt depending from the top and at least one primary locking lug projecting radially from the skirt which in all positions, except one, engages under said locking rib to secure the cap in place, said primary locking lug being of an arcuate span to register with said gap in said one position and means providing auxiliary releasable locking means adjacent at least one terminal end of said primary locking lug when said primary locking is disposed in said one position, said means providing a small seating force releasable upon tilting movement of said closure relative to the neck of the container.
Specification