Plastic article or earthenware shaping or treating: apparatus – Plural sets each comprising a female mold and opposed... – Molds or press members traveling transversely to molding motion
Reexamination Certificate
2005-08-09
2005-08-09
Utech, Benjamin L. (Department: 1722)
Plastic article or earthenware shaping or treating: apparatus
Plural sets each comprising a female mold and opposed...
Molds or press members traveling transversely to molding motion
C425S34800S, C425S353000
Reexamination Certificate
active
06926511
ABSTRACT:
The invention relates to a rotary press with anti-rotation secured shafts and exchangeable punches attached thereto. The rotary press comprises a punch turn which is universally ensured with the use of anti-rotation secured punch shafts, meaning, not only with rotation-symmetrical but also with roll-guided punches, is solved in such a way that the exchangeable punch is executed in a rotational manner, where a circumferential recess in the stem of the punch is envisaged, into which a component such as a spring thrust piece engages for the purpose of fixation, and that the shell surface of the exchangeable punch indicates a zone which interacts with a zone of the external component, either force-locking or positive locking, in such a way that the punch receives a turning movement at a defined point of the pitch circle of the punch circumference.
REFERENCES:
patent: 3118183 (1964-01-01), Gex et al.
patent: 4443171 (1984-04-01), Dixon
patent: 4487566 (1984-12-01), Barna
patent: 5116214 (1992-05-01), Korsch et al.
patent: 5906837 (1999-05-01), Link et al.
patent: 6595767 (2003-07-01), Hinzpeter et al.
patent: 88 16 064.5 (1989-02-01), None
Korsch Pressen GmbH, Rückblick und Ausblick; Mar. 1995.
Garbe Dietrich
Pagel Jürgen
Schulze Herbert
Korsch Pressen AG
Nguyen Thu Khanh T.
Norris McLaughlin & Marcus PA
Utech Benjamin L.
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