Rotary actuator apparatus
US4274329A · kind A · utility
12Cited by
12References
7Claims
0Family size
Inventor
Key dates
| Filing date | Nov 13, 1978 |
| Grant date | Jun 23, 1981 |
| Priority date | — |
| Expiry date | Nov 13, 1998 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B15/06
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A rotary actuator apparatus provides compound rotation at its output in two planes perpendicular to one another. This compound rotation is utilized in positioning a workpiece or in positioning a rock drill on the boom of a vehicle. A rotary rack and pinion actuator has an output pinion shaft rotatably mounted in an external housing and a piston driven rack in a cylinder at right angles to the output shaft housing. This cylinder is welded to the output shaft housing so that the cylinder can transmit rotational torque to the output shaft housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.