Pneumatic rotary drive
US5261320A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 21, 1992 |
| Grant date | Nov 16, 1993 |
| Priority date | — |
| Expiry date | Dec 21, 2012 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01C5/06
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.