Tabbed Seal With Oversized Tab
AssigneeSelig Sealing Products, Inc.
InventorsRobert William Thorstensen-Woll, Steven A. Brucker
Life of this patent
Estimating the term…
Abstract
Various enhancements of tabbed seals are provided herein with enhanced grasping functionality. Such enhancements include an oversized tab structure for increasing the overall surface area of the tab. In some forms, the tab has been configured such that the overall gripping tab is larger, but a portion thereof is temporarily adhered to the lower laminate, such as during seal and/or cap installation. Instead, the gripping tab includes a small free portion and then a second, temporarily bonded portion that can either release or rupture, permitting the overall grippable portion of the tab to be large.
Claims20
A tabbed sealing member for sealing to a rim surrounding a container opening, the sealing member comprising:
- a lower laminate portion including a sealant layer for sealing to the rim of the container;
- an upper laminate portion;
- and
- a bonding layer partially bonding the upper laminate portion to the lower laminate portion to form a gripping tab, the gripping tab configured for removing the sealing member from the container opening,
- wherein the gripping tab has an outermost edge with a free portion extending from the outermost edge inwardly to a first portion, a temporarily bonded portion extending continuously from the first portion inwardly to a second portion where the temporarily bonded portion is configured to release and/or rupture prior to the tabbed seal being from removed from the container, and a permanently bonded portion extending from the second portion inwardly, where the free portion and the temporarily bonded portion can be grasped by a user to remove the tabbed sealing member from the container.
A tabbed sealing member for sealing to a rim surrounding a container opening, the tabbed sealing member having an upper surface area, the tabbed sealing member comprising:
- a lower laminate portion including a sealant layer for sealing to the rim of the container;
- an upper laminate portion;
- and
- a bonding layer partially bonding the upper laminate portion to the lower laminate portion to form a gripping tab, the gripping tab configured for removing the sealing member from the container opening;
- wherein the gripping tab has an outermost edge with a free portion extending from the outermost edge inwardly to a first portion, the free portion having an area less than 50% of the upper surface area, a temporarily bonded portion that releases or ruptures prior to the tabbed seal being removed from the container, and a permanently bonded portion, the temporarily bonded portion extending continuously from the first portion inwardly to the permanently bonded portion, the free portion and the temporarily bonded portion having an area greater than 50% of the upper surface area, whereby a user can grasp the free portion and the temporarily bonded portion to remove the tabbed sealing member from the container.
A laminate for forming a tabbed sealing member for sealing to a rim surrounding a container opening, the laminate comprising:
- a lower laminate portion including a sealant layer for sealing to the rim of the container;
- an upper laminate portion;
- and
- a bonding layer partially bonding the upper laminate portion to the lower laminate portion to form a gripping tab when the laminate is formed into the tabbed sealing member, the gripping tab configured for removing the sealing member from the container opening;
- wherein the laminate has a width with a first portion of the width having the upper and lower laminate portions being unbonded to one another, a second portion of the width where the upper and lower laminate portions are temporarily bonded to one another, and a third portion of the width where the upper and lower laminate portions are permanently bonded to one another via at least a portion of the bonding layer, the second portion extending continuously from the first portion to the third portion.
Dependencies are inferred from the claim text.