Variable-pitch arm star construction for rotary molding...

Details Variable-pitch arm star construction for rotary molding... Variable-pitch arm star construction for rotary molding...

2006-11-28

2006-11-28

Davis, Robert B. (Department: 1722)

Plastic article or earthenware shaping or treating: apparatus

Female mold and means to shape parison directly by internal...

Including means to prepare parison

C198S470100, C198S803900, C425S540000

Reexamination Certificate

active

07140870

ABSTRACT:
A star construction having variable pitch arms for a rotary molding machine for making plastic vessels and bottles, comprises a plurality of arms including gripper elements and a system including two levers which engages with the grippers, while cooperating with respective cam contours, the lever and cam system being reciprocatedly driven for providing a pitch variation and controlling the positions of the gripper elements.With respect to prior solutions, the variable pitch arm star construction according to the invention allows to quickly and simply perform the operations necessary for modifying the arm pitch.

REFERENCES:
patent: 5683729 (1997-11-01), Valles
patent: 5863571 (1999-01-01), Santais et al.
patent: 6386857 (2002-05-01), Nava
patent: 6649118 (2003-11-01), Dunlap et al.
patent: 6779651 (2004-08-01), Linglet et al.
patent: 10017050 (2001-10-01), None
patent: WO 01/44084 (2001-06-01), None

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