Seal cap for container closure

• US 10,086,985 B2
• Filed: 09/11/2014
• Issued: 10/02/2018
• Est. Priority Date: 10/29/2013
• Status: Active Grant

• Current Assignee: Schã¼Tz GmbH & Company KGaA
• Original Assignee: Schã¼Tz GmbH & Company KGaA
• Inventors: Klatt, Bernd
• Primary Examiner(s): Smalley, James N
• Application Number:
  US15/032,458
• Publication Number:
  US 20160272385A1
• Time in Patent Office: 1,482 Days
• Field of Search: 220789, 220661, 215255
• CPC Class Codes: B65D 2251/0015 of the 41-type
• CPC Class Codes: B65D 2251/0075 of the 39-type
• CPC Class Codes: B65D 2401/15 Tearable part of the closure B65D2401/60 takes precedence
• CPC Class Codes: B65D 39/025 the closure being maintained in place by an additional element
• CPC Class Codes: B65D 39/082 Bung-rings and bungs for bung-holes
• CPC Class Codes: B65D 41/58 Caps or cap-like covers combined with stoppers
• CPC Class Codes: B65D 51/18 Arrangements of closures with protective outer cap-like covers or of two or more co-operating closures B65D51/247 takes precedence
• CPC Class Codes: B65D 55/0863 Plastic snap-on cap-like collars having frangible parts collar for maintaining rigid discs in sealing engagement with mouth of containers B65D51/145

Abstract

A seal cap (10) for a container closure includes a cover disc (11) having a fastening ring, connected to an underside of the cover disc, with a latching element, for producing a detachable engagement connection with the container closure, connected to a pull tab arranged at the circumference of the cover disc via a connecting element. The connecting element has a cover strip formed in the cover disc that is separated from adjacent areas of the cover disc by lateral cover-strip predetermined breaking lines, which have predetermined breaking elements and has a pull web connected to the latching element of the fastening ring. The cover strip extends from the pull tab, at the circumference of the cover disc into a central inner portion (18) of the cover disc within the fastening ring and the pull web is arranged in an intersecting area between the cover strip and the fastening ring.

Claims

1. A seal cap for a container closure, the seal cap comprising

a cover disc;

a fastening ring connected to an underside of the cover disc, the fastening ring having a latching element for producing a detachable engagement connection with the container closure;

a connecting element; and

a pull tab arranged at a circumference of the cover disc and connected to the latching element via the connecting element, the connecting element having a cover strip formed in the cover disc and being separated from adjacent areas of the cover disc by lateral cover-strip predetermined breaking lines, which have predetermined breaking elements, and having a pull web connected to the latching element of the fastening ring, wherein the cover strip extends from the pull tab, at the circumference of the cover disc, into a central inner portion of the cover disc within the fastening ring and the pull web is arranged in an intersecting area between the cover strip and the fastening ring.

2. The seal cap according to claim 1, wherein the pull web between the latching element and the cover strip is connected to the latching element in the area of a recess formed in the fastening ring.

3. The seal cap according to claim 1, wherein adjacent to a connecting area of the pull web, the latching element is separated from a ring base of the fastening ring, which is connected to the cover disc, by latching-element predetermined breaking lines extending parallel to the cover disc and laterally to the pull web.

4. The seal cap according to claim 1, wherein the pull web has a section extending parallel to the cover disc and being connected to the latching element and has a section adjoining thereto and extending transversely to the cover disc and being connected to a cover strip section of the cover strip, the cover strip section being arranged in the inner portion of the cover disc.

5. The seal cap according to claim 4, wherein the cover strip section has a thickness that is reduced as compared to the cover disc.

6. The seal cap according to claim 1, wherein the latching element has an indentation adjacent to the connecting area of the pull web and in the area of the recess formed in the fastening ring.

7. The seal cap according to claim 1, wherein at a circumference of the cover disc the cover disc has an edge apron arranged concentrically to the fastening ring and separated from the cover disc by a circular edge-apron predetermined breaking line formed along the circumference of the cover disc and the pull tab of the cover strip is formed in the edge apron such that the pull tab is connected to adjacent areas of the edge apron at lateral predetermined breaking elements.

8. The seal cap according to claim 1, wherein the fastening ring forms a cup portion of the seal cap together with the central inner portion of the cover disc in such a manner that the inner portion of the cover disc forms a cup bottom formed in the cover disc and the cup bottom is separated from an outer portion of the cover disc by a circular inner-portion predetermined breaking line.

9. The seal cap according to claim 1, wherein predetermined breaking elements between the pull tab and the adjacent areas of the edge apron are configured in relation to the predetermined breaking element of the edge-apron predetermined breaking line such that the predetermined breaking elements of the edge-apron predetermined breaking line remain intact when the pull tab is detached from the edge apron.

10. The seal cap according to claim 1, wherein the predetermined breaking element of the inner-portion predetermined breaking line is configured in relation to a predetermined breaking element of a latching-element predetermined breaking line such that the inner-portion predetermined breaking line remains intact when the cover strip is detached from the cover disc.

11. A seal cap for a container closure, the seal cap comprising:

a cover disc comprising an outer edge and a longitudinal axis, the outer edge defining a circumference of the cover disc;

a fastening ring connected to an underside of the cover disc, the fastening ring having a latching element for producing a detachable engagement connection with the container closure;

a connecting element comprising a cover strip and lateral cover-strip predetermined breaking lines, the lateral cover-strip predetermined breaking lines comprising predetermined breaking elements, the cover strip being separated from adjacent areas of the cover disc by the lateral cover-strip predetermined breaking lines; and

a pull tab arranged at the circumference of the cover disc, the pull tab being connected to the latching element via the connecting element, the connecting element having a pull web connected to the latching element of the fastening ring, wherein the cover strip extends in a radial direction, with respect to the longitudinal axis, from the pull tab to a position in a central inner portion of the cover disc within the fastening ring and the pull web is arranged in an intersecting area between the cover strip and the fastening ring.

12. The seal cap according to claim 11, wherein the lateral cover-strip predetermined breaking lines extend from the outer edge to at least the fastening ring.

13. The seal cap according to claim 11, wherein the fastening ring comprises a fastening ring outer surface, the lateral cover-strip predetermined breaking lines extending from the outer edge to at least the fastening ring outer surface.

14. The seal cap according to claim 11, wherein the lateral cover-strip predetermined breaking lines extend from the outer edge to the position in the central inner portion of the cover disc.

15. The seal cap according to claim 11, wherein adjacent to a connecting area of the pull web, the latching element is separated from a ring base of the fastening ring, which is connected to the cover disc, by latching-element predetermined breaking lines extending parallel to the cover disc and laterally to the pull web.

16. A seal cap for a container closure, the seal cap comprising:

a cover disc comprising an outer wall and a longitudinal axis, the outer wall extending in a circumferential direction with respect to the longitudinal axis;

a fastening ring connected to an underside of the cover disc, the fastening ring being located radially inward of the outer wall with respect to the longitudinal axis, the fastening ring having a latching element for producing a detachable engagement connection with the container closure;

a connecting element comprising a cover strip and lateral cover-strip predetermined breaking lines, the lateral cover-strip predetermined breaking lines comprising predetermined breaking elements, the cover strip being separated from adjacent areas of the cover disc by the lateral cover-strip predetermined breaking lines; and

a pull tab arranged at the circumference of the cover disc, the pull tab being connected to the latching element via the connecting element, the connecting element having a pull web connected to the latching element of the fastening ring, the pull web being located adjacent to the fastening ring, wherein the cover strip extends in a radial direction, with respect to the longitudinal axis, from the pull tab to a position in a central inner portion of the cover disc within the fastening ring and the pull web is arranged in an intersecting area between the cover strip and the fastening ring.

17. The seal cap according to claim 16, wherein the pull web is located radially inward of the outer wall with respect to the longitudinal axis.

18. The seal cap according to claim 17, wherein the fastening ring comprises a fastening ring wall defining an interior space of the fastening ring, the pull web being located in the interior space.

19. The seal cap according to claim 16, wherein the lateral cover-strip predetermined breaking lines extend from the outer edge to the position in the central inner portion of the cover disc.

20. The seal cap according to claim 16, wherein adjacent to a connecting area of the pull web, the latching element is separated from a ring base of the fastening ring, which is connected to the cover disc, by latching-element predetermined breaking lines extending parallel to the cover disc and laterally to the pull web.