Plastic article or earthenware shaping or treating: apparatus – Pattern control of travel for a forming means
Reexamination Certificate
2008-07-25
2011-10-11
Ewald, Maria Veronica (Department: 1744)
Plastic article or earthenware shaping or treating: apparatus
Pattern control of travel for a forming means
C264S308000, C264S401000, C264S113000
Reexamination Certificate
active
08033811
ABSTRACT:
A digital manufacturing system for producing first and second objects comprises a platen, a gantry, a pantograph extrusion head system and first and second sets of extruders. The platen defines a workspace upon which the objects are produced. The gantry defines a headspace displaced from the workspace. The extrusion head system is mounted to the gantry for movement in the headspace. The sets of extruders are connected to the extrusion head system and are configured to deposit extrusion material on the workspace to build the objects. Each set of extruders comprises a first extruder mounted to the extrusion head system; a second extruder mounted to the extrusion head system so as to be actuatable from a first to a second position; and a flexible linkage connecting the extruders. The flexible linkages position the second extruders in approximately equal known spatial relationships to the first extruders in the second positions.
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Crump Steven Scott
Swanson William J.
Ewald Maria Veronica
Morrison Brian R.
Stratasys Inc.
Westman Champlin & Kelly P.A.
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