Plastic article or earthenware shaping or treating: apparatus – Diverse distinct type shaping means – Shaping orifice and either a downstream preform reshaping...
Reexamination Certificate
2008-05-13
2008-05-13
Davis, Robert B. (Department: 1791)
Plastic article or earthenware shaping or treating: apparatus
Diverse distinct type shaping means
Shaping orifice and either a downstream preform reshaping...
C425S185000, C425S19200R, C425S388000
Reexamination Certificate
active
10553485
ABSTRACT:
A device for calibrating an extruder plastic profile having a calibration unit for the profiled strand coming-out of a molding profile nozzle is described, the calibration unit having a molding body (1) enclosing the profiled strand, having calibration surfaces (5), which press against the profiled strand, and vacuum slots (6), which run in the calibration surfaces (5) transversely to the passage direction of the profiled strand (2) and are connectable to a partial vacuum source. In order to provide advantageous construction conditions, it is suggested that at least individual vacuum slots (6) penetrate the molding body (1) transversely to the passage direction (2) and be closed on outside of the molding body (1) using a removable cover (12).
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International Search Report of PCT/AT2004/00129, Feb. 2, 2006.
Collard & Roe P.C.
Davis Robert B.
Gruber & Co.Group GmbH
Leyson Joseph
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