Apparatus for producing shaped articles

Plastic article or earthenware shaping or treating: apparatus – Means applying electrical or wave energy directly to work – Sonic or supersonic wave energy

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Details

4251744, 425363, 425394, 425395, 425406, 425408, 425445, 425806, B28B 1700

Patent

active

059194936

ABSTRACT:
Known fabrication apparatuses, including patterned pinch rollers, molds, etc., are adapted to create articles having a shape characterized by more than six faces of identical size and shape, and by members extending outwardly in three orthogonal dimensions, the articles each including at least a pair of faces which intersect to bound a concave region, each article including a plurality of such concave regions. In certain embodiments, vibrational energy (e.g. ultrasonic or microwave energy) is utilized to aid in article formation.

REFERENCES:
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patent: 2408164 (1946-09-01), Foster et al.
patent: 3078516 (1963-02-01), Trammell, Jr. et al.
patent: 3975132 (1976-08-01), Keim
patent: 4128369 (1978-12-01), Kemerer et al.
patent: 4238179 (1980-12-01), Llabres et al.
patent: 4913910 (1990-04-01), McCarville et al.

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