Manufacturing container or tube from paper; or other manufacturi – Container making – Rigid container
Patent
1990-08-24
1992-09-15
Terrell, William E.
Manufacturing container or tube from paper; or other manufacturi
Container making
Rigid container
493 82, 493175, 493468, 30 2, B31B 314, B31B 322, B31B 328
Patent
active
051472694
ABSTRACT:
A method and apparatus for producing blanks to form into cartons, boxes or the like from a continuous sheet, the carton having a substantially tubular shaped part which, in cross-section, has three or more sides, the blank including continuous, sequentially disposed portions which will provide carton side parts and flap parts at one or both of the ends of the tubular carton side part at some or each of the side parts, the ends of the tubular carton part being closed by the flap parts. A sheet or blank of required shape is produced using a fixture with a longitudinal extension that corresponds to the longitudinal extension of the tubular carton part and has a cross-sectional outer profile which corresponds to the cross-sectional profile of the tubular carton part. An edge part of a material sheet of at least the required size for a blank is attached to the fixture preferably along a longitudinally extending corner part of the fixture, the corner part forming a demarcation line between two adjacent side parts of the carton blank and at which line the sheet is folded, and the side parts wrapped around the fixture in the tubular carton part configuration with flap parts which are a continuation of the carton side parts. The fixture can be used as a template when it is necessary to cut and remove excess parts of the sheet attached to and formed around the fixture.
REFERENCES:
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patent: 4659322 (1987-04-01), Boudin et al.
patent: 4932930 (1990-06-01), Coalier et al.
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