Fluid driven working cylinder without a piston rod

Details Fluid driven working cylinder without a piston rod Fluid driven working cylinder without a piston rod

1991-08-26

1993-01-12

Look, Edward K.

Expansible chamber devices

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

92137, 277DIG7, F01B 2900

Patent

active

051780569

ABSTRACT:
A fluid-driven working cylinder without a piston rod is provided with a cylinder housing (4) which in cross-section is fully closed, and along which a force takeaway (1) is guided without turning. The force takeaway (1) is connected with a band (7) that extends respectively from each of the ends of the cylinder housing (4) and is fastened to the piston. The band (7) is externally guided over two reversing wheels. To avoid leaks of the cylinder housing (4) during pressurization the interior of the cylinder housing (4) is divided into a piston space (8), in which the working piston is moved back and forth, and a band space (9), which is separated from piston space (8), but which is connected with the piston space (8) by means of a longitudional slit (10) which is sealed off by a sealing strip (5). Band (7) runs in the band space (9) and is connected to the piston by means of linkage (6) which projects through the longitudinal slit (10). This construction permits the preferred usage of a toothed belt or a chain as a band.

REFERENCES:
patent: 4252285 (1981-02-01), Hammond et al.
patent: 4337845 (1982-06-01), Zelli et al.
patent: 4714007 (1987-12-01), Maisch
patent: 4733604 (1988-03-01), Lipinski
patent: 4856415 (1989-08-01), Noda
patent: 4991494 (1991-02-01), Migliori
patent: 5020421 (1991-06-01), Podlesak
patent: 5022311 (1991-06-01), Fortmann et al.
patent: 5035171 (1991-07-01), Gottling et al.

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