发明名称 |
CONTAINER |
摘要 |
A package is provided with a lid and container that are heat sealed together. A multi-ply sheet material is provided for being thermoformed to define the container which has a tapering wall and bulge-resistant bottom end. Prior to thermoforming the container from the sheet, the sheet is heated with oval pads on a plurality of plates which are arranged in a configuration to facilitate control of the sheet temperature. A plug is used in the thermoforming process to contact the sheet and position the sheet within a die. A lid sheet is heat sealed to the container sheet over the thermoformed containers so as to produce a pair of spaced-apart, annular bead heat seals. The package is completed by severing the sealed-together sheets at the periphery of the container with a punch and die set that produces a clean, smooth cut surface. |
申请公布号 |
CA2283398(A1) |
申请公布日期 |
1998.09.11 |
申请号 |
CA19982283398 |
申请日期 |
1998.03.03 |
申请人 |
ABBOTT LABORATORIES |
发明人 |
STEVENS, TODD A.;MIHALOV, LORI J.;ULSTAD, DAVID C.;SITA, LEWIS H.;ZEITLER, W. GEORGE |
分类号 |
B29C65/18;B29C65/74;B65B7/16;B65B61/06;B65D17/40;B65D51/20;B65D53/00;B65D77/20 |
主分类号 |
B29C65/18 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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