B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
B29C 57/00 (2006.01) B29B 13/02 (2006.01) B29C 57/12 (2006.01)
Patent
CA 2576566
An apparatus (10) for reforming an annular end sealing surface (16) of a molded plastic container (12) includes a head (20) having an annular contact surface and a drive for bringing the annular contact surface into contact with the annular end sealing surface of the container. The head and the container do not rotate relative to each other during this contact reforming operation. Heat is applied through the contact surface to the end sealing surface while the surfaces are in contact to raise the temperature at the end sealing surface to at least the softening temperature of the plastic material, so that the end sealing surface is softened and reformed by heat and contact with the contact surface.
L'invention concerne un dispositif permettant de reformer une surface d'étanchéité terminale annulaire d'un récipient en plastique moulé par soufflage, qui comprend une tête à surface de contact annulaire et une commande pour amener la surface de contact annulaire en contact avec la surface d'étanchéité terminale annulaire pendant l'opération de reformage de contact. La tête est appliquée sur la surface d'étanchéité terminale, par la surface de contact, afin d'augmenter la température au niveau de la surface d'étanchéité terminale, jusqu'à obtention d'au moins la température de ramollissement de la matière plastique, de sorte que la surface d'étanchéité terminale soit ramollie et reformée sous l'effet de la chaleur et du contact avec la surface de contact.
Chisholm Brian J.
Geisinger Gregory A.
Graham Packaging Plastic Products Inc.
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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