Method and apparatus for forming large articles

Details Method and apparatus for forming large articles Method and apparatus for forming large articles

2006-08-15

2006-08-15

Smith, Duane (Department: 1722)

Plastic article or earthenware shaping or treating: apparatus

Preform reshaping or resizing means: or vulcanizing means...

Including shaping means comprising fluid pressure contacting...

C425SDIG048, C425S397000, C425S400000, C425S403100

Reexamination Certificate

active

07090485

ABSTRACT:
Method and apparatus of forming articles includes a press having a pair of opposite platens. An articulated clamping frame is mounted between the platens, each of which are moveable toward and away from the clamping frame. Material to be formed is clamped into the clamping frames and the articulated clamping frame is wrapped around the die as the die forms the material. The formed article is extracted from the die by moving the clamping frame away from the die.

REFERENCES:
patent: 2968064 (1961-01-01), Howell
patent: 3655320 (1972-04-01), Heavener
patent: 3791567 (1974-02-01), Schott, Jr.
patent: 4099901 (1978-07-01), Shuman
patent: 4744848 (1988-05-01), Andrews et al.
patent: 4938678 (1990-07-01), Oulman
patent: 4975236 (1990-12-01), MacLachlan
patent: 5843492 (1998-12-01), McCorry
patent: 5863568 (1999-01-01), Tomita et al.
patent: 6250909 (2001-06-01), Segen, Jr.

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