Closure cap
AssigneeCrown Cork & Seal Technologies Corporation
InventorsUdo Bösl, Georg Pfefferkorn
Life of this patent
Estimating the term…
Abstract
A closure cap comprises in a transition range (7) between the cap base (2) and the cap skirt (3) a bulge (6) for pressing a sealing disk (5) against a container opening. The bulge (6) comprises an undercut (8) and in sections (9) is provided with weakenings (10) which give the bulge (6) a radial flexibility.
Claims29
A closure cap for a container, comprising a cap base, a cap skirt, with inner retaining elements which may be brought into engagement with outer retaining means of an opening of the container;
- a sealing disk which at least partly bears on the cap base
- and a circumferential bulge arranged in a transition region between said cap base and said cap skirt, for pressing said sealing disk onto an upper outer edge of said opening of the container,
- wherein said sealing disk bears at a radially inner surface of said circumferential bulge,
- wherein the closure cap between said bulge and said skirt at least partly is provided with a circumferential undercut having a height, and
- wherein said bulge in at least one segment-like section has a weakening, and wherein said weakening does not extend the full height of said undercut.
A combination of a closure cap and a container having an opening, said closure cap comprising a cap base, a cap skirt, with inner retaining elements which may be brought into engagement with outer retaining means of the opening of the container;
- a sealing disk which at least partly bears on the cap base and a circumferential bulge arranged in a transition region between said cap base and said cap skirt, for pressing said sealing disk onto an outer upper edge of said opening of the container, an inner diameter of said bulge being larger than the diameter of the outer upper edge of said opening of the container,
- wherein the closure cap between said bulge and said skirt at least partly is provided with a circumferential undercut having height, and wherein said bulge in at least one segment-like section has a weakening, and wherein said weakening does not extend the full height of said undercut.
A closure cap for a container, comprising a cap base, a cap skirt, with inner retaining elements which may be brought into engagement with outer retaining means of an opening of the container;
- a sealing disk which at least partly bears on the cap base
- and a circumferential bulge arranged in a transition region between said cap base and said cap skirt, for pressing said sealing disk onto an upper outer edge of said opening of the container,
- wherein said sealing disk bears at a radially inner surface of said circumferential bulge,
- wherein the closure cap between said bulge and said skirt at least partly is provided with a circumferential undercut, and
- wherein said bulge in at least one segment-like section has a weakening, wherein the radial rib ends between neighboring weakenings of the bulge.
Dependencies are inferred from the claim text.