Plastic article or earthenware shaping or treating: apparatus – Preform reshaping or resizing means: or vulcanizing means...
Patent
1990-10-31
1992-05-12
Woo, Jay H.
Plastic article or earthenware shaping or treating: apparatus
Preform reshaping or resizing means: or vulcanizing means...
72319, 264339, B29C 5304
Patent
active
051122103
ABSTRACT:
A bending machine for thermoplastic workpieces includes a first clamp assembly having first and second clamping jaws. A second clamp assembly is disposed along a first side of the first clamp assembly and includes third and fourth clamping jaws. The second clamp assembly is displaceable relative to the first clamp assembly, and the fourth clamping jaw is in planar alignment with the second clamping jaw. A heater assembly includes at least a first heating knife disposed along the first side of the first clamp assembly, and is displaceable relative to the first clamp assembly. A bending jaw is disposed along an opposite second side of the first clamp assembly and is pivotal between a first position in planar alignment with the second and fourth clamping jaws and a second position angularly disposed relative thereto.
REFERENCES:
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patent: 3888613 (1975-06-01), Fries et al.
patent: 3946588 (1976-03-01), Mayston
patent: 4557684 (1985-12-01), Romine et al.
patent: 4781787 (1988-11-01), Weissfloch et al.
patent: 4944176 (1990-07-01), Glorieux et al.
Berenato, III Joseph W.
Davis Robert B.
Wegener GmbH
Woo Jay H.
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