Cylinder device

Details Cylinder device Cylinder device

1993-04-02

1994-09-06

Denion, Thomas E.

Expansible chamber devices

With cushioning means effective over a portion only of stroke

92 51, 92 53, F01B 1102

Patent

active

053437977

ABSTRACT:
A cylinder device which is capable of restraining the total length thereof to a shorter length even when the stroke is made longer, and which thereby provides the compact appearance and layout of, for example, a machine tool, in which the cylinder device is used. The cylinder device includes a first cylinder provided with an extensible piston rod. The piston rod is constituted as a cylinder tube of a second cylinder. The extensible piston rod of the second cylinder is formed in the interior thereof with a flow path for guiding a working fluid into a cylinder chamber of the second cylinder constituted by the piston rod of the first cylinder.

REFERENCES:
patent: 344038 (1886-06-01), Fitts
patent: 1095926 (1914-05-01), Powell
patent: 3164066 (1965-01-01), Frye et al.
patent: 3905278 (1975-09-01), Ourdouillie
patent: 4922722 (1990-05-01), Kazumoto et al.

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