Jack with fixed piston for handling, moving and manipulating a w

Details Jack with fixed piston for handling, moving and manipulating a w Jack with fixed piston for handling, moving and manipulating a w

1995-06-21

1997-04-01

Denion, Thomas E.

Expansible chamber devices

Moving cylinder

92165PR, 92165R, 92 85B, F01B 1502

Patent

active

056155980

ABSTRACT:
A jack consists of a body of the jack (2) sliding on a fixed piston (9) mounted on a support (6) by means of a piston rod (4), and at least one element for guiding the body on the support. The body of the jack is an extruded section (2) containing at least one longitudinal bore (3) used as the piston chamber for the jack, and equipped with at least two guide rods (5) mounted on the section (2) in the longitudinal direction. Bearings (15) adapted to the shape of the guide rods (5) are mourned on the fixed support (6). At least one of the bearings is adjustable. Advantageously, the extruded section (2) is equipped with two hydraulic shock absorbers intended to contact limit stops (21). Limit stops (21) have adjustable positions, and can be retracted and fixed on an L-shaped groove (20) of the fixed support (6).

REFERENCES:
patent: 817381 (1906-04-01), Matson
patent: 2952218 (1960-09-01), Steffes
patent: 3836011 (1974-09-01), Sakamoto et al.
patent: 4361209 (1982-11-01), Kappenhagen et al.
patent: 4796516 (1989-01-01), Horvath
patent: 4898080 (1990-02-01), Lieberman
patent: 5062357 (1991-11-01), Senior et al.
patent: 5182985 (1993-02-01), Gutowski
patent: 5188018 (1993-02-01), Trenner
patent: 5305683 (1994-04-01), Gospowski et al.
patent: 5311810 (1994-05-01), Takapa et al.
patent: 5469775 (1995-11-01), Stoll et al.

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