Hydraulic actuator including a multi-head piston for hydraulic gearing
US12145719B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 22, 2022 |
| Grant date | Nov 19, 2024 |
| Priority date | — |
| Expiry date | Oct 4, 2042 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B2211/8752
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A hydraulic actuator system includes a hydraulic actuator having a housing with a piston having a piston shaft arranged within the housing. The housing is formed to have first, second and third regions, wherein the first region is between the second and third regions and has a larger major dimension than the second and third regions. The system also includes first, second, and third piston heads connected to the piston shaft with the first piston head being tween the second and third piston, wherein the first position head is within the first region and divides the first region into two volumes, the second piston head is in the second region and defines a first volume and the third piston head is in the third region and defines a fourth volume. The system also includes a mode selection device operably connected to the first, second, third and fourth volume.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.