Valve actuation mechanism
US11339886B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 4, 2019 |
| Grant date | May 24, 2022 |
| Priority date | — |
| Expiry date | Apr 26, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64D25/14
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A valve actuation mechanism comprises a housing, an actuation pin rotatably mounted within the housing and at least one torque spring coupling the actuation pin to the housing for biasing the actuation pin from a first, inoperative rotational position towards a second, operative rotational position. The mechanism further comprises an actuation pin retaining element for selectively retaining the actuation pin in its first position, the retaining element being engageable with the actuation pin and the housing when the retaining element is in a retaining position so as to prevent rotation of the actuation pin towards its second position, and selectively disengageable from the housing to permit rotation of the actuation pin towards its second position. A locking element is provided for selectively preventing disengagement of the retaining element from the housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.