Piston for hydraulic actuating cylinders

Details Piston for hydraulic actuating cylinders Piston for hydraulic actuating cylinders

1997-03-27

1998-11-17

Nguyen, Hoang

Expansible chamber devices

Piston

With ball or roller anti-friction means on side wall portion

92192, 92248, 92256, F16J 102, F16J 900

Patent

active

058362355

ABSTRACT:
In order to reduce the weight and manufacturing cost of a piston for a hydraulic actuating cylinder, the piston, the piston rod and the external reinforcement cap are combined to form a unitary integral part. The unitary part is advantageously a single extrusion product. The piston is shaped so as to be able both to slide along the length of the inner cylinder wall, and to tilt upon deflection or lateral displacement of the piston rod in the bore of the cylinder, while still maintaining its hydraulic seal.

REFERENCES:
patent: 1775892 (1930-09-01), DeSalvardi
patent: 2251259 (1941-08-01), Carmichael
patent: 2926976 (1960-03-01), Bowerman et al.
patent: 3716310 (1973-02-01), Guenther
patent: 4807577 (1989-02-01), Koutsouppidis
patent: 4909133 (1990-03-01), Taylor et al.
patent: 4944215 (1990-07-01), Nimmo et al.
patent: 5213025 (1993-05-01), Rozer
patent: 5245913 (1993-09-01), Kato
patent: 5363744 (1994-11-01), Pichler

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