Linerless closure for container

TL;DR: In this paper, the authors describe a closure with a sealing rib projecting downwardly from the underside of its top portion, where the first portion (15) increases in thickness as it extends away from the top portion (11).

TL;DR: In this article, a closure shell with an end wall (14) and a sidewall (16) has an inside thread (18) for engagement to a thread formation of a confiner neck.

TL;DR: In this paper, the authors describe a closed container with an integral sealing fin with an inner end ( 24 ) as a first portion and an outer end ( 26 ) as second portion, and the outer end, as molded, extends inwardly and downwardly from a distal end of the first portion.

TL;DR: In this article, a universal dispensing closure capable of fitting various sized container openings in sealed engagement and used to house a secondary supply or dose of product and when the closure is activated dispense the secondary product or dose into a receiving vessel to wliieh it is attached.

TL;DR: In this paper, the tamper evident band (11) is provided with longitudinal reinforcement by projections (25 and 28) or other areas of thickening (26) to provide the band with longitudinal stiffness while still permitting it to expand over the retaining flange on the container.

TL;DR: A tamper indicating package consisting of a container having a neck with a threaded finish, an annular bead on the neck, a plastic closure which includes a base wall and a depending peripheral skirt having threads interengaging the threads of the container, and a tamper indicated band attached to the skirt by a plurality of weakened portions defining a line of severing as discussed by the authors.

Abstract: A closure (1) for a container having an externally screw threaded neck (9), said closure (1) being moulded in one piece from a resilient plastics material and comprising a top (4) and a dependingskirt (2) which has on its internal surface a complementary screw thread (3), characterised in that an annular sealing rib (6) projects downwardly from the top (4), the rib (6) includes a first substantially cylindrical portion (7) contiguous with the top (4) and lying adjacent to or abutting with the skirt (2) and a second, frusto-conical, portion (8) contiguous with the end of the first portion (7) distal to the top (4) and extending radially inwardly to terminate in a circular free edge, the internal diameter of the first portion (7) being equal to or only slightly larger than the external diameter of the neck (9) of the container to which the closure is to be attached such that, during threaded engagement of the closure (1) with the neck (9), the second, frusto-conical, portion (8) will be engaged by a free end of the neck (9) and folded back against the first, substantially cylindrical portion (7) of the rib (6) and to form a gas-tight seal between the neck (9) of the container and the closure (1).

TL;DR: In this article, a safety closure for containers comprising a container with a threaded neck portion (11), a cap (14) provided with a multiplicity of threads cooperatively engaging the threads (12, 12a) on the neck portion, and resilient liner is defined.