Linear actuator

Details Linear actuator Linear actuator

1995-11-15

1997-03-04

Ryznic, John E.

Expansible chamber devices

Sealed opening in longitudinal wall of chamber for receiving...

92151, F15B 1500, F01B 2900

Patent

active

056069022

ABSTRACT:
A linear actuator has a cylinder body having a slot defined therein, a slide table, a joint connected substantially perpendicularly to a lower surface of the slide table, a pair of pistons slidably disposed in a through hole defined in the cylinder body and defining respective cylinder chambers in the through hole, for displacing the joint in response to a fluid under pressure supplied to one of the cylinder chambers, a guide projecting from a lower surface of the slide table, a pair of spaced guide blocks projecting from an upper surface of the cylinder body, and a plurality of balls rollingly interposed between the guide and the guide blocks.

REFERENCES:
patent: 4401011 (1983-08-01), Wallberg
patent: 4403389 (1983-09-01), Coope
patent: 4664020 (1987-05-01), Kaiser
patent: 4838147 (1989-06-01), Grishchenko
patent: 5245910 (1993-09-01), Drittel
patent: 5303638 (1994-04-01), Green
patent: 5363741 (1994-11-01), Takada et al.
Patent Abstracts of Japan, vol. 9, No. 87 (M-372)(1810), Apr. 17, 1985, JP-A-59-214537, Dec. 4, 1984.
Patent Abstracts of Japan, vol. 9, No. 229 (M-413)(1952), Sep. 14, 1985, JP-A-60-085840, May 15, 1985.
Patent Abstracts of Japan, vol. 9, No. 206 (M-406)(1929), Aug. 23, 1985, JP-A-60-067046, Apr. 17, 1985.

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