Spool valve actuator
US12281720B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 13, 2023 |
| Grant date | Apr 22, 2025 |
| Priority date | — |
| Expiry date | Oct 19, 2043 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K11/0704
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A spool valve actuator may include a stop fixed to the case with a cylindrical body member having a first set of slots of a first length at regular circumferential distances and a second set of slots of a second length at regular circumferential distances offset from the first set of slots, both set of slots configured to slidably receive a proximal portion of a positioner, a ratchet member may comprise, a cylindrical body slidably attached to the spool valve shaft and keyed to the stop to prevent relative rotation, a distal edge comprising a plurality of distally facing teeth configured to engage the proximal portion of the positioner when the ratchet is moved away from the stop, the positioner may comprise a plurality of proximally extending positioning members configured to engage with both the distally facing teeth and the slots in the stop.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.