Position-determining actuator
US10208772B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 12, 2018 |
| Grant date | Feb 19, 2019 |
| Priority date | — |
| Expiry date | Jan 12, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B2211/6313
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A position-determining actuator includes a rod, a barrel, a wave detector, and a controller. The barrel at least partially surrounds a piston of the rod so as to define a cap-side void and allow the rod to telescope relative to the barrel. The wave detector is associated with the cap-side void and configured to read fluid pressure of a hydraulic fluid disposed in the cap-side void. The controller is configured to receive, from the wave detector, a pressure reading from within the cap-side void; analyze the pressure reading to determine an extension standing wave; and analyze the extension standing wave to determine an extension dimension of the cap-side void.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.