Actuator having external load supporting member
US7343846B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 9, 2004 |
| Grant date | Mar 18, 2008 |
| Priority date | — |
| Expiry date | Mar 9, 2024 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C11/06
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A hydraulic actuator is provided for supporting a load. The actuator includes a cylinder, a lower end closed by a base, and an annular side wall connected between the base and the upper wall. A piston is disposed partially within the cylinder, and includes a rod extending through the upper end of the cylinder, and a piston head that defines a hydraulic chamber with the base. A cylinder chamber is disposed between the base and the piston head and communicates with a fluid source and a fluid return to correspondingly extend and retract the piston. A support member is connected to the cylinder wall, and can be raised to support a tilt saddle member between the piston rod and the load after the piston has been extended.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.