Pneumatic rotary drive

Details Pneumatic rotary drive Pneumatic rotary drive

1992-12-21

1993-11-16

Denion, Thomas E.

Expansible chamber devices

Collapsible chamber wall portion

Wall portion formed of flexible material

92137, 92120, F01B 1900

Patent

active

052613208

ABSTRACT:
A pneumatic rotary drive includes a housing and at least one cover sealingly closing the housing. A rotatable shaft extends out of the housing through the at least one cover. At least one guide member is mounted in the housing. A belt mounted in the housing is in engagement with the shaft. A pressing member presses two portions of the belt together so that two expandable pressure chambers are formed. When pressure is admitted to one of the pressure chambers, the pressure chamber expands and the shaft is rotated. The belt has two ends which are located adjacent each other in a common plane and form one of the belt portions which are pressed together. The housing has an internal wall with a toothing which is in engagement with an external toothing of the belt.

REFERENCES:
patent: 3417942 (1968-12-01), Van Alstyne
patent: 4616556 (1986-10-01), Meilman et al.
patent: 4756237 (1988-07-01), Shishkin et al.
patent: 4838148 (1989-06-01), Denker
patent: 4876946 (1989-10-01), Shishkin et al.

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