Receptacles – Closures – With closure opening arrangements for means
Reexamination Certificate
2000-04-26
2001-07-03
Newhouse, Nathan J. (Department: 3727)
Receptacles
Closures
With closure opening arrangements for means
C220S269000, C220S270000, C220S712000
Reexamination Certificate
active
06253946
ABSTRACT:
A prerequisite for a can closure is to withstand the pressure generated by the carbonated drink contained in the can while still being easy to open.
There are various types of prior art closures for a can drink, which, to open the can, have the common feature of comprising a ring, strip or similar, appropriately fastened by rivets to the closure. Such additional components often end up in the nature and increase the strain on the environment. Also, it is awkward to open such cans with one hand, for instance a driver trying to do so may jeopardise traffic safety. Patent specifications DE 28 47 323, GB 1,415,935, GB 2,294,446 and U.S. Pat. No. 5,535,911 describe various solutions aiming to open closures for of drink cans with one hand, however, these solutions have not been satisfactory in practical operation. These references and the solutions described in them explicitly represent the state of the art. Their solutions do not have the benefits this invention does.
The invention relates to a closure for a can of drink formed in one piece which can be opened with one hand, in which a projection from where guide scores start has been formed. The closure in accordance with the invention is characterised by the fact that the projection has essentially abrupt walls and is equipped with a peak from where the guide scores start, in alignment with the join between the abrupt projection walls and the closure, and that the guide score continues from the guide score join away from the projection, and that the closure tears along these guide scores when the projection is pressed down against the closure.
Various embodiments of the invention are set forth in the dependent claims of the set of claims.
A closure for a can of drink which is made in one piece has the obvious productional advantages of not requiring additional components such as strips, rings and rivets, and of requiring clearly fewer operation steps in the manufacture of the closure. The advantages thus achieved involve faster and less expensive production, no need of machines, storage space or handling equipment for supplementary parts, and less strain on the environment.
REFERENCES:
patent: 3355058 (1967-11-01), Asbury
patent: 3779417 (1973-12-01), Klein
patent: 3927794 (1975-12-01), Erdman
patent: 4018357 (1977-04-01), Ostrem
patent: 4078693 (1978-03-01), Asbury
patent: 4078694 (1978-03-01), Gnyp et al.
patent: 4359170 (1982-11-01), Edlund
patent: 4465203 (1984-08-01), Lambert
patent: 4553684 (1985-11-01), Bennett
patent: 4585140 (1986-04-01), Lambert
patent: 4784283 (1988-11-01), Cantu
patent: 4909407 (1990-03-01), Lambert et al.
patent: 5147057 (1992-09-01), Marshall et al.
patent: 5535911 (1996-07-01), Cortez
patent: 5894950 (1999-04-01), Kick
patent: 28 47 323 A1 (1980-05-01), None
patent: 1 415 935 (1975-12-01), None
patent: 2 294 446 (1996-05-01), None
Greenberg & Traurig, LLP
Manak Joseph M.
Newhouse Nathan J.
Oy Modux AB, et al.
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