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US 6,006,930 AGranted
Bottle finish and closure cap with double screw thread
AssigneeCrown Cork AG
InventorsLino Dreyer, Richard Jauslin
Life of this patent
Estimating the term…
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AssigneeCrown Cork AG
InventorsLino Dreyer, Richard Jauslin
Estimating the term…
For improving the venting behavior of containers with beverages containing carbon dioxide, a container finish (1) and a closure (11) is provided with a twin-start thread. The thread comprises in each case two threads (3, 13) which extend over an angle of 240.degree. to less than 360.degree., preferably 280.degree., and which are arranged so as to be displaced at 180.degree.. In this way, initial or first sections (5), in which the threads (3) overlap each other vertically, are formed on the outside surface (2) of the container finish (1), as well as second sections (6) in which, vertically, only one thread (3) is arranged. On the inside surface (12) of the closure (11), initial or first sections (15) are formed in which the threads (13) overlap each other vertically, as well as second sections (16) in which, vertically, only one thread (13) is arranged. In each of the sections (5, 6, 15, 16), at least one venting recess (4, 14) is arranged per thread, said venting recess interrupting the threads (3, 13).
Container finish (1) with an essentially cylindrical outside surface (2) with two threads (3) protruding radially outwards, said threads being arranged on the outside surface (2) so as to be displaced by 180.degree., and with venting recesses (4), said venting recesses interrupting the threads (3), characterized in that each thread (3) extends over an angle of 240.degree. to less than 360.degree., preferably 340.degree., wherein both the threads (3) overlap each other vertically in two first sections (5) of the outside surface (2) and wherein, vertically, only one thread (3) is arranged in each of two second sections (6), and wherein, per thread (3), at least one venting recess is provided in each of the first sections (5), said venting recess being essentially vertically aligned with the venting recess (4) of the other thread (3), and wherein at least one venting recess (4) is provided in each of the second sections (6).
Closure (11) with a closure base (20) and a circumferential skirt (21) affixed to said base, said skirt possessing an essentially cylindrical inside surface (12) with two threads (13) protruding radially inwards, said threads being arranged so as to be displaced by 180.degree. on the inside surface (12) and possessing venting recesses (14) interrupting the threads (13), characterized in that each thread (13) extends over an angle of 240.degree. to less than 360.degree., preferably 340.degree., wherein both threads (13) overlap each other vertically in two first sections (15) of the inside surface (12) and wherein, vertically, in each case only one thread (13) is arranged in two second sections (16), and wherein, in each first section (15), at least one venting recess (14) is provided per thread (13), said venting recess aligning essentially vertically with the venting recess (14) of the other thread (13) and wherein, in each second section (16), at least one venting recess (14) is provided.
Closure arrangement with a container finish (1) and a closure cap (11) for closing a container (1a), wherein the container finish (1) possesses an essentially cylindrical outside surface (2) with two threads (3) protruding radially outwards, said threads being arranged so as to be displaced by 180.degree. on the outside surface (2), as well as venting recesses (4) interrupting the threads (3), and wherein the closure (11) possesses a closure base (20) and attached to said base a circumferential skirt (21) with an essentially cylindrical inside surface (12), two radially inwardly protruding threads (13), displaced by 180.degree., being arranged on said inside surface, as well as venting recesses (14) which interrupt the threads (13), wherein the threads (13) of the closure (11) are able to be brought into engagement with the threads (3) of the container finish (1), characterized in that each thread (3) of the container finish (1) and each thread (13) of the closure (11) extends over an angle of 240.degree. to less than 360.degree., preferably 340.degree., wherein, in two first sections (5) of the outside surface (2) of the container finish (1), both the threads (3) of the container finish (1) overlap each other vertically, and wherein, vertically, in each case only one thread (3) is arranged in two second sections (6) of the outside surface (2) of the container finish (1), and wherein both the threads (13) of the closure (11) overlap each other vertically in two first sections (15) of the inside surface (12), and wherein, vertically, in each case only one thread (13) is arranged in two second sections (16) of the inside surface (12), and wherein, in each of the first sections (5) of the outside surface (2) of the container finish (1), per thread (3), at least one venting recess (4) is provided, said venting recess being aligned essentially vertically with the venting recess (4) of the other thread (3), as well as at least one venting recess (4) in each of the second sections (6), and wherein at least one venting recess (14) is provided per thread (13) in each of the first sections (15) of the inside surface (12) of the closure (11), said venting recess being aligned essentially vertically with the venting recess (14) of the other thread (13), as well as at least one venting recess (14) in each of the second sections (16).
Dependencies are inferred from the claim text.