Hydraulic rotator and valve assembly
US7152519B2 · kind B2 · utility
7Cited by
28References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 13, 2005 |
| Grant date | Dec 26, 2006 |
| Priority date | — |
| Expiry date | May 13, 2025 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02F9/2271
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A motor-driven hydraulic rotator assembly for use on articulated-boom excavating equipment, or the like, for rotating and actuating an operable attachment. The rotator assembly comprises concentric tubular oil distribution channels located within the load-bearing shaft and drive assembly. In a preferred embodiment, the motor comprises a hydraulic pressure relief valve to decrease a low pressure side of the motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.