Rotary actuated support
US4508016A · kind A · utility
Inventor
Key dates
| Filing date | Sep 9, 1983 |
| Grant date | Apr 2, 1985 |
| Priority date | — |
| Expiry date | Sep 9, 2003 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66C23/44
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A fluid-powered, rotary actuated support, including an elongated cylindrical body having ports for introducing pressurized fluid therein; a platform concentric with the cylindrical body and rotatable relative thereto; a radially extending bearing support joined to the cylindrical body and confronting the platform; bearings disposed between the bearing support and the platform for allowing relative rotational movement between the platform and the bearing support, with one of the platform or bearing support being subjected to bending loads disposed in a generally vertical plane from the weight of a crane or other device and its load; a longitudinally splined output shaft rotatably disposed within the body and having a drive end for providing rotational drive between the body and the platform, the splines being loosely fitted to the platform for substantially isolating the shaft from non-rotational movement of the platform, the shaft being bearingless and radially floating within the body for transferring rotational torque between the body and the platform without causing bending of the output shaft under the bending loads of the crane or other device, the drive end of the shaft being…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.