Plastic article or earthenware shaping or treating: apparatus – Control means responsive to or actuated by means sensing or... – Feed control of material en route to shaping area
Reexamination Certificate
2006-10-03
2006-10-03
Heitbrink, Tim (Department: 1722)
Plastic article or earthenware shaping or treating: apparatus
Control means responsive to or actuated by means sensing or...
Feed control of material en route to shaping area
C425S150000
Reexamination Certificate
active
07114940
ABSTRACT:
An electromotive adjustment drive includes an electric drive having a single motor with a rotor having a magnetic pole assembly, and a stator interacting with the rotor and having a magnetic pole assembly. The rotor is operatively connected to a member, such as a plasticizing screw of an injection unit, and is constructed for movement along a travel path, whereby one of the magnetic pole assemblies of the rotor and the stator is extended in relation to the other one of the magnetic pole assemblies of the rotor and the stator by a portion corresponding to the travel path. A spindle drive is positioned between the rotor and a motor housing and has a first transmitting element which is operatively connected to the rotor, and a second transmitting element which supports the first transmitting element. A plurality of switching elements is constructed for selective operation of the electric drive as a rotary drive or as injection drive.
REFERENCES:
patent: 5645868 (1997-07-01), Reinhart
patent: 6461139 (2002-10-01), Yokoya et al.
patent: 06 091709 (1994-04-01), None
Harish Kittappa Gowda
Ickinger Georg Michael
Kumar Mathrubootmam
Saju Mangalasseril
Sivakumar Shanmugham
Demag Ergotech GmbH
Feiereisen Henry M.
Heitbrink Tim
L & T-Demag Plastics Machinery Private Limited
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