Heavy-load hydraulic or air cylinder

Details Heavy-load hydraulic or air cylinder Heavy-load hydraulic or air cylinder

1996-11-25

1998-04-14

Denion, Thomas E.

Expansible chamber devices

With cushioning means effective over a portion only of stroke

92 85A, 92 85R, F01B 1102

Patent

active

057379980

ABSTRACT:
A heavy-load hydraulic or air cylinder comprises a main body provided therein with an action rod having an driven end. The driven end is exerted on by the liquid or air pressure to actuate the action rod. The driven end is provided respectively on both sides thereof with a pressure bearing piece. The driven end and the pressure bearing piece are provided therebetween with a leakproof ring. The main body is further provided at the exit end thereof with at least one pressure bearing piece. The pressure bearing piece and an exit cap are provided therebetween with a leakproof ring. When the action rod is at work to bring about the pressure, the pressure bearing piece is acted on by the pressure, which is the transferred to act on the leakproof ring, which in turn generates the reaction force to act against the inner wall surface of the main body so as to enable the cylinder to withstand a heavy burden or weight.

REFERENCES:
patent: 3465650 (1969-09-01), Gluck
patent: 4206687 (1980-06-01), Klaus et al.
patent: 4211150 (1980-07-01), Framberg
patent: 4700611 (1987-10-01), Kaneko
patent: 5213024 (1993-05-01), Huber et al.
patent: 5228380 (1993-07-01), Stoll et al.

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