METHOD AND DEVICE FOR SHAPING AND LOCKING SHELLS
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United States of America Patent
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Issued Date -
Oct 15, 2015
app pub date -
Oct 29, 2013
filing date -
Nov 7, 2012
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Abstract
Technical device for shaping. Characterized in that said machine shapes shells simply by means of a positive or negative thrust driving into what is referred to as a funnel a precut and pre-scored sheet. The pushing or pulling energy forces the sheet to deform and then to adopt the desired shape. The widening, situated at the top of said funnel, allows the sheet to be positioned and then guided into the restriction opening. The deformations are oriented by fixed supports situated on the path of said funnel. As it gradually passes through the restriction, the shell takes shape with its sides being folded down vertically and its four corners being folded towards its inner centre. Closure with the locking key by guided pressure.
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