Plastic article or earthenware shaping or treating: apparatus – With safety feature
Patent
1984-03-20
1986-01-07
Woo, Jay H.
Plastic article or earthenware shaping or treating: apparatus
With safety feature
100219, 425405H, 425413, 4254515, B28B 300
Patent
active
045631433
ABSTRACT:
An isostatic press includes a closed press frame, there being a pressure chamber bearing against a first interior portion of the frame. A conveyor path for pressure chamber closures (3) each carrying a press tool part, extends through the frame under the pressure chamber, displacement means being arranged for lifting in the plane of the frame a chamber closure (3) into contact with the pressure chamber. During pressurization of the pressure chamber (1) the closure (3) is carried by two separate support legs (4,5) pivotably mounted in the plane of the frame, the conveyor path extending between the legs. The closure (3) is carried in the plane of the frame by a portion (72) of the conveyor path, which constitutes the lower press table of the press and is supported by the legs. The free end surfaces of the legs may have an arcuate contour in the plane of the frame and coact with complementally formed surfaces on the underside of said portion (72). The center of curvature for the circular end surface is preferably displaced inwardly towards the interior of the frame from the mean force line (A) of the respective leg.
REFERENCES:
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patent: 2475394 (1949-07-01), Lester
patent: 2585297 (1952-02-01), Beuscher
patent: 3208373 (1965-09-01), Bachelier
patent: 3262158 (1966-07-01), Von Reimer et al.
patent: 3579741 (1971-05-01), Schwartz
patent: 3698843 (1972-10-01), Bowles et al.
patent: 4088432 (1978-05-01), Farrell
patent: 4243369 (1981-01-01), James
Fortenberry J.
KB Cold Isostatic Press Systems CIPS
Woo Jay H.
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