Actuator assembly for a fluid control device
US11326713B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 19, 2020 |
| Grant date | May 10, 2022 |
| Priority date | — |
| Expiry date | Jul 2, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K35/06
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A fluid control device comprising including a body having an inlet, an outlet, and a fluid flow path between the inlet and the outlet, a seat, and a control element that is coupled to a stem. The control element and the stem are movable relative to a longitudinal axis and biased toward a closed position, in which the control element engages the seat. An actuator assembly is operatively coupled to the stem and includes a planetary gear transmission mechanism configured to receive a first rotational velocity and to deliver a second rotational velocity different than the first rotational velocity. A shaft has a first end coupled to the transmission mechanism and a second end coupled to valve stem. The second rotational velocity is transmitted to the valve stem to move the control element between the closed position and an open position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.