Piston-rod-less linear drive

Details Piston-rod-less linear drive Piston-rod-less linear drive

1996-04-30

1997-09-02

Lopez, F. Daniel

Expansible chamber devices

With inspection window in expansible chamber wall portion

With lock

92 88, F01B 3112

Patent

active

056620225

ABSTRACT:
A pistonrod-less linear drive, whose housing having a longitudinal slot contains a drive part for longitudinal movement therein. A transmission member linked with the drive part projects right through the longitudinal slot to the outside. Adjacent to the two flanks of the longitudinal slot there is a respective resistance strip which extends in the longitudinal direction of the slot and is secured to the housing. A wiper contact arrangement is provided on the transmission member which simultaneously makes contact with both resistance strips and on longitudinal movement of the transmission member slides along the resistance strips. Connection means are provided to render possible connection of the two resistance strips with a position detecting and evaluating device.

REFERENCES:
patent: 4656457 (1987-04-01), Brausfeld et al.
patent: 4819546 (1989-04-01), Ernst et al.

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