Pressure cylinder apparatus and hydraulic press incorporating th

Details Pressure cylinder apparatus and hydraulic press incorporating th Pressure cylinder apparatus and hydraulic press incorporating th

1983-01-07

1984-05-01

Flint, Jr., J. Howard

Plastic article or earthenware shaping or treating: apparatus

Mold opening and closing means and segmented female mold

425352, 425406, 92177, 92110, B30B 132, B30B 1102

Patent

active

044458401

ABSTRACT:
Disclosed is a pressure cylinder apparatus having a cylinder and a slidable member such as a ram or piston which is slidable back and forth in response to charging and discharging of fluid into and out of the cylinder, wherein that the said slidable member has a polygonal cross-sectional shape and that the said stopper assembly having an aperture of a polygonal shape corresponding to the polygonal cross-section of the slidable member is provided in the plane perpendicular to the direction of movement of the slidable member so that the stopper assembly prevents or limits the undesirable rotation of the slidable member during outward movement of the slidable member, and disclosed also is a hydraulic press incorporating the pressure cylinder apparatus stated above, and the end surface of the said slidable member is shaped and sized to conform with the press mold part to which the end surface portion is connected.

REFERENCES:
patent: 1412119 (1922-04-01), Laussuco
patent: 2259781 (1941-10-01), Shaw et al.
patent: 2338491 (1944-01-01), Cutler
patent: 2358765 (1944-09-01), Stadlin
patent: 3180236 (1965-04-01), Beckett
patent: 4080877 (1978-03-01), de Fries

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