Abstract: A closure for a container is provided with a top portion and a skirt depending from an outer periphery of the top portion. A generally circular rim extends downwards from the lower surface of the top portion. A liner is attached to the closure between an outer surface of the rim and an inner surface of the skirt. The liner is configured to provide a fluid tight seal for containers having varied neck dimensions and/or profiles. One or more projections extend into a space formed between the lower surface of the top portion, an inner surface of the skirt, and an outer surface of the rim, with the liner enveloping and being supported in the closure by the one or more projections.
Type:
Grant
Filed:
April 10, 2017
Date of Patent:
September 1, 2020
Assignee:
Silgan White Cap LLC
Inventors:
Sungsuk Steve Kim, Timothy Graham Stephenson
Abstract: A closure including a base, a cutter and a cap is described which is configured to be attached to a container. Upon initial removal of the cap from the base, the cutter is configured to move downwards relative to the base so as to create an opening through the container. The portion of the container through which the cutter creates an opening may be formed of a film that is configured to be easily pierceable by the cutter. Methods of molding the closure components may include co-molding the cutter and base an in integral unit so as to facilitate and expedite assembly of the base, cutter and cap components to form the closure.
Abstract: A spout includes a mounting portion to which a pouch of a container assembly is sealed. The exterior of the mounting portion is defined by a smooth, non-angled surface free of edges or sharp transition portions, and is defined along its height by a generally sinusoidal, wave-like pattern formed by alternating peaks and troughs. The exterior of the mounting portion is structured such that the ratio of the length of the portion of the mounting portion exterior surface extending between adjacent peaks to the height between adjacent peaks is minimized to no more than 10%, and more preferably no more than 5%. By minimizing this ratio, the amount that a pouch will stretch if it is pushed into the cavities formed between adjacent peaks of the mounting portion (e.g. during an HPP process) is minimized, thereby preventing damage to the pouch and/or attachment between the pouch and spout.
Abstract: A lightweight neck finish includes a retaining structure that interacts with a tamper band to cause frangible connectors between the tamper band and closure to break upon initial removal of the closure from the neck finish. An upper retention portion of the retaining structure has a profile with a reduced footprint as compared to a conventional retaining structure. A lower support portion of the retaining structure has an outermost diameter similar in size to an outermost diameter of a conventional retaining structure. However, the lower support of the lightweight neck finish is formed with one or more circumferentially extending slots and/or one or more vertical slots. The reduced footprint of the retention portion and the slots of the support portion minimize the amount of material, weight, and time and cost required to make the lightweight neck finish, while providing for increased tamper evidence visibility as compared to conventional neck finishes.
Abstract: A closure includes a top panel and a corner section connecting an outer periphery of the top panel with a downwardly extending annular skirt. A plurality of gently curved ridges are spaced about the outer perimeter of the closure. The ridges generally extend from a lower portion of the skirt and around the corner section, with the upper ends of the ridges terminating proximate the top panel outer periphery. A plurality of knurls extend radially outwards from the midpoints of the ridges along the skirt of the closure. The configuration, arrangement, and spacing of the ridges and knurls about the closure provide an enhanced grip and feel, allowing for easier twist-off of the closure from a container. The closure may be used interchangeably with existing capping chucks used to apply conventional closures without requiring any modification to the capping chucks to apply the closures to containers during a capping process.
Abstract: A container assembly including a pouch, spout and closure is provided. When the pouch and spout are attached, one or more cavities are formed between the inner surfaces of the sidewall of the pouch and the external surface of a mounting portion of the spout. One or both of the spout and pouch include a vent which provides for fluid communication between the cavity and the ambient environment on the outside of the pouch. The vents are configured to allow for pressure equalization of the cavity relative to the outside of the pouch during sterilization of the container assembly.
Abstract: A metal closure having multiple thread engaging lugs configured to decrease the pressure exerted by the closure lugs on the neck of a container is provided. In various embodiments, the metal closure comprises a top wall, a skirt extending downward from a peripheral edge of the top wall, a lower edge included on the skirt, and a plurality of lugs formed at the lower edge of the skirt. Pressure may be decreased by the closure having more lugs and/or larger lugs than other metal closures.
Abstract: A tamper evident closure and spout are provided. The closure includes a tamper-indicating band extending from a central wall. Formed about the tamper band are one or more spout engagement structures. Also provided about the tamper band may be one or more knuckles that assist in distorting the tamper band upon initial removal of the closure from a spout so as to increase the ease with which the tamper band can be identified as having been broken upon visual inspection by a user. The spout includes a wall portion and a central channel extending through the wall portion between an inlet opening and an outlet opening. Located about an outer portion of the spout are one or more tamper band engagement structures configured to engage a tamper band and which assist in breaking and distorting a tamper band upon initial removal of a closure from the spout.