Bottles and jars – Closures – Frangible member or portion
Patent
1982-12-13
1984-06-12
Norton, Donald F.
Bottles and jars
Closures
Frangible member or portion
B65D 4142
Patent
active
044536445
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to a cap with tear-off tag having a pulling member in the form of a ring or eye connected to the tear-off tag.
Caps of the type described above are already known through our Swedish patent application No. 78 02 184-7, for example.
Since opening means provided with pulling rings or eyes have become extremely popular for containers of the can type which are opened by pulling the opening means in an upward direction, it has proved difficult to get the consumer to handle pulling rings or eyes on cap for containers in any other way than by pulling straight upwards. This may cause problems in opening caps sealing the opening of a bottle, since the "correct" method of opening these is first to pull the pulling ring straight out across the longitudinal direction of the bottle and only thereafter pull the ring upwards. During the initial pull in transverse direction, the weakened sections of the material defining the tear-off tag itself will properly give way simultaneously on both sides of the tear-off tag. Since this initial pull on the tag demands a good grip for the weakened sections to give way and permit the cap to be opened it has been proposed according to the Swedish patent application mentioned above to use a pulling ring or eye connected to the tear-off tag. However, it has been found that, as in the case of pulling rings for opening cans, the ring is pulled straight upwards even when removing the cap from a bottle. There is then a considerable risk that the tear-off tag will not come loose from the rest of the cap in the correct manner, i.e. the tear-off tag may break off, or it is even possible that the pulling ring itself may break off from the tag if the tear-off tag and pulling ring have been made as two separate components and then joined together.
Another drawback with known caps of the type in question is the deformation of tear-off tag and pulling member which may occur when handling the cap prior to its application on the bottle or container. The tag part protruding from the cap may also be deformed, for instance, when the sealed bottles are packed in crates or the like for transport.
The primary object of the present invention is to achieve a cap with a tear-off tag having a pulling ring or eye connected to the tag, which can be opened in a simple manner by pulling the ring or eye in an upward direction, without the risk of the ring or eye unintentionally coming loose from the tag--in the event of the tag and ring or eye consisting of two separate components which have been joined together.
Another object of the present invention is to achieve a cap of the type described in which the protruding tag-end has considerably greater resistance to deformation during sorting and transportation of the cap to the place of use.
Yet another object of the present invention is to achieve a cap of the type described where the pulling ring or eye is shaped to fit the neck of a bottle, for instance, thus making unintentional interference with the opening components of the cap more difficult when the capped bottle is placed in a crate, for instance.
Yet another object of the present invention is to achieve a cap of the type described above, where a force component acting transversely to the direction of pull is in any case obtained when the ring or eye is pulled straight up.
The above objects are achieved according to the invention in that the cap is given the features defined in the claims.
By arranging at least one upset buckling or impression extending over the pulling member and the outer part of the tear-off tag connected to the pulling member, the tear-off tag itself is reinforced, at the same time as the buckling or impression on the pulling member is rolled up over the buckling or impression on the tear-off tag when the pulling member is bent from folded down to folded up position. When the pulling member is then pulled straight up, leverage will be produced between the pulling member and the junction of the tear-off tag with the cap so that a bending torque is exerted on t
REFERENCES:
patent: 1239238 (1917-09-01), White
patent: 1549080 (1925-08-01), Henson
patent: 2778520 (1957-01-01), Hyde, Jr.
patent: 3743129 (1973-07-01), Willis et al.
patent: 3958710 (1976-05-01), Harding et al.
patent: 4003488 (1971-01-01), Moller
patent: 4227619 (1980-10-01), Magnusson
Norton Donald F.
Wicanders AB
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