A Threaded Closure
AssigneeObrist Closures Switzerland GmbH
InventorsLino Dreyer, Sebastien Widmer, Romain Dampfhoffer
Life of this patent
Estimating the term…
Abstract
A closure is provided and comprises a top plate and a sidewall depending therefrom. The interior of the sidewall has a screw thread formation comprising a plurality of thread segments. The thread segments collectively define an engagement surface for engagement with an external thread formation on an associated container. A notional helical top surface with a constant pitch extends along the formation, and at least some, but not all, of the segments include material offset from the notional helical top surface towards the top plate.
Claims28
A closure comprising a top plate and a sidewall depending therefrom, the interior of the sidewall having a screw thread formation, the formation comprising a plurality of thread segments, the thread segments collectively define an engagement surface for engagement with an external thread formation on an associated container, a notional helical top surface with a constant pitch extends along the formation, at least some, but not all, of the segments include material offset from the notional helical top surface towards the top plate.
A closure comprising a top plate and a sidewall depending from the periphery thereof, the interior of the sidewall having a screw thread formation, the formation comprising a plurality of separate thread segments, at least one of the segments having a first axial thickness and at least one of the segments having a second axial thickness which is greater than the first axial thickness and being increased in a direction towards the top plate so as to offset the top contact surface of the formation and compensate vertical displacement of the closure in use.
(canceled)
A closure comprising a top wall and an annular skirt depending therefrom, the interior of the skirt has a screw thread formation for threaded engagement with an external thread formation on an associated container, the formation comprising a plurality of thread segments, in which the thread segments include two or more different segment profiles, and in which the closure comprises an outer seal for sealing against a container neck, and a pressure formation for pressing the outer seal against the neck.
(canceled)
(canceled)
(canceled)
(canceled)
(canceled)
(canceled)
(canceled)
Dependencies are inferred from the claim text.