Installation for blow-molding hollow bodies

Details Installation for blow-molding hollow bodies Installation for blow-molding hollow bodies

2007-11-28

2010-11-02

Davis, Robert B (Department: 1791)

Plastic article or earthenware shaping or treating: apparatus

With apparatus assembly or dismantling means or with idle part

C425S529000, C425S535000

Reexamination Certificate

active

07824166

ABSTRACT:
The present invention relates to a blow-molding installation for manufacturing thermoplastic hollow bodies by blow-molding or stretch-blow-molding containers (37) in a molding cavity of a mold, this blow-molding installation comprising a double-acting nozzle actuator (1) with two stages in series, equipped with two pistons (5, 6), these being an upper piston and a lower piston respectively, the nozzle (15, 16) being fixed removably, and pneumatic control means being designed to make said pistons (5, 6) slide according to a first operating mode used when the nozzle (15) is of the type that makes sealed contact with the mouth of the neck of the container, and a second operating mode used when the nozzle (16) is of the bell type with sealed contact against the surface of the mold in which the container (37) is placed.

REFERENCES:
patent: 5169705 (1992-12-01), Coxhead et al.
patent: 6769895 (2004-08-01), Derouault et al.
patent: 2008/0286402 (2008-11-01), Mie
patent: 0437381 (1991-07-01), None
patent: 1529620 (2005-05-01), None
patent: WO 01/53063 (2001-07-01), None

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