Plastic article or earthenware shaping or treating: apparatus – With separate apparatus cleaning means
Reexamination Certificate
2005-10-19
2010-02-02
Gupta, Yogendra (Department: 1791)
Plastic article or earthenware shaping or treating: apparatus
With separate apparatus cleaning means
C425S231000, C425S345000, C425S407000
Reexamination Certificate
active
07654814
ABSTRACT:
Rotary press comprising a rotor rotatably driven about a vertical axis, said rotor exhibiting a die plate and upper and lower punches which are vertically guided in guides of the rotor working together with die holes in a die plate, at least one press station which exhibits an upper and a lower pressure passed by the punches and through which the punches are moved towards the die hole in order to compress the material in the die hole, characterized in that the rotor is provided with means which act upon compacts or parts thereof which adhere to the pressing surface or which means eliminate or prevent an adherence of a compact or parts thereof to the pressing surface of the upper punch, respectively, during the return stroke.
REFERENCES:
patent: 3677673 (1972-07-01), Shapiro
patent: 4061453 (1977-12-01), DeSantis
patent: 4219320 (1980-08-01), Stuben et al.
patent: 5449481 (1995-09-01), Sagawa et al.
patent: 5536331 (1996-07-01), Korsch
patent: 5643630 (1997-07-01), Hinzpeter et al.
patent: 6749416 (2004-06-01), Arndt et al.
patent: 6750193 (2004-06-01), Holderbaum et al.
patent: 6866493 (2005-03-01), Trebbi et al.
patent: 2 042 224 (1972-03-01), None
patent: 29 43 789 (1980-05-01), None
patent: 88 16 064.5 (1989-02-01), None
patent: 100 46 869 (2002-04-01), None
patent: 100 24 340 (2002-09-01), None
patent: 101 42 624 (2003-04-01), None
patent: 0 448 190 (1991-09-01), None
patent: 1 070 497 (2001-01-01), None
patent: 00/27618 (2000-05-01), None
PAJ:Patent Abstracts of Japan CD ROM 1989 JP01321100A.
Bommrowitz Helmut
Ehrich Thorsten
Schikowski Jürgen
Schmidt Ingo
Fette GmbH
Gupta Yogendra
Nguyen Thu Khanh T
Vidas Arrett & Steinkraus P.A.
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