Plastic article or earthenware shaping or treating: apparatus – Means for molding powdered metal
Patent
1981-02-02
1983-07-12
Flint, Jr., J. Howard
Plastic article or earthenware shaping or treating: apparatus
Means for molding powdered metal
425352, 425156, 425162, 425165, 425167, 425214, 425355, 425411, B30B 1102
Patent
active
043928005
ABSTRACT:
A press for compressing pulverulent materials into both concave and convex pieces includes a press frame, a die carying plate, upper and lower punches, holders for carrying the punches and control devices for controlling the displacement of the upper and lower punches. The press comprises also a first piston-cylinder device for controlling the displacement of the die carrying plate, a second piston-cylinder device fastened to the frame and supporting the die carrying plate, levers arranged above the die carrying plate and having one end pivoted to the frame and sliders slidable on the opposite ends are provided in the press. The first piston cylinder device acts on the other ends of the levers to exert thereon a pressure depending on the distance of the sliders from the other ends of the levers.
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patent: 3758245 (1973-09-01), Hermes
patent: 3802818 (1974-04-01), Watanabe et al.
patent: 3868201 (1975-02-01), Jacobson et al.
patent: 4128376 (1978-12-01), Abertazzi
Flint, Jr. J. Howard
Merisinter S.p.A.
Striker Michael J.
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