초록 ▼

Improved easy open means for containers. Especially adapted to those used for liquids, including carbonated beverages, and permitting drinking from the container or pouring out contents. An important feature is attachment of closure to container after opening to avoid litter. Main feature is an open

Improved easy open means for containers. Especially adapted to those used for liquids, including carbonated beverages, and permitting drinking from the container or pouring out contents. An important feature is attachment of closure to container after opening to avoid litter. Main feature is an openable segment in the top defined by a score line that extends almost all around its periphery, but interrupted at one point by an unscored section which provides integral hingeable attachment means to secure the segment to the top within the container after opening. Opening of the segment is accomplished by a manually operated elongated leverage lift tab which is hingeably secured to the top by a rivet which is positioned just outside of the segment and close to the score line. The outer longer lift end of the lift tab extends over the container top beyond the segment, and the shorter inner end extends partially over the segment, and comprises a downward pressure exerting extension. When the lift end is raised, the inner end exerts high downward pressure near the score line, thereby rupturing the score line with the rupture starting near the pressure point and extending on around the periphery, and the segment is thereby hinged down into the container where it remains attached to the top by the hingeable unscored section. The lift tab is then folded back out of the way to a position just overlying the container top, and ready for drinking from the can or pouring out the contents. Other features include various lift tab pressure exerting means, depression in top for lift tab, angular positioning of lift tab for improved rupturing and less obstruction to the user, part of score line replaced by adhesive sealing for easier initial rupture, various means for stiffening segment and top.

대표청구항 ▼

An improved easy open container having a top with easy opening means therein, and said easy opening means comprising, an openable segment of generally rounded corner shape in said container top and with said segment defined by a weakening score line which extends most of the way around the periphery

An improved easy open container having a top with easy opening means therein, and said easy opening means comprising, an openable segment of generally rounded corner shape in said container top and with said segment defined by a weakening score line which extends most of the way around the periphery of said segment, but with said score line interrupted at a point to leave an unscored section of said periphery, and said unscored section providing an integral hingeable attachment means to anchor said segment to said container top after opening of said segment, said openable segment having an outer end extending toward the peripheral border of said container top, and an inner end extending toward the inner region of said top, and said unscored section of said score line positioned along one side of said segment, and being closer to said inner end than to said outer end of said segment, a leverage lift tab for manual opening of said openable segment, and having rivet securement means positioned along its length to permanently secure it to said container top, and with flexible upwardly hingeable connection means between the main body of said lift tab and said rivet, and with said rivet securement means positioned on said top just outward of said openable segment and close to said score line and in the region of said inner end of said segment, and said lift tab having a longer outer lift end extending beyond said segment and closely overlying said top mainly outward of said segment, and having s shorter inner downward pressure exerting end means extending over only a part of said segment and said part located in its inner end region, and said inner downward pressure exerting end means of said lift tab having pressure contact means whereby when said outer lift end of said lift tab is manually raised, said pressure contact means will tilt downward and exert high downward pressure on said segment and cause rupture along said score line, and will bend said segment down into said container where it remains anchored to said top by said hingeable unscored section, and whereby an opening is formed in said container top suitable for outflow of the contents of said container.