Elastomeric pitch lock restraint
US10994837B1 · kind B1 · utility
2Cited by
5References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 17, 2019 |
| Grant date | May 4, 2021 |
| Priority date | — |
| Expiry date | Jan 29, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64C29/0033
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An exemplary pitch lock for a tiltrotor aircraft to enable and disable a pitching degree of freedom of a rotor blade assembly includes a first tab coupled to a blade stop assembly, the first tab having a first ramp surface, a second tab coupled to a blade cuff, the second tab having a second ramp surface, a hasp having a central opening to receive the first and the second tab and rollers rotatably coupled to the hasp on opposite sides of the central opening, where the rollers engage the first and second ramp surfaces and retain the first and the second tabs in the central opening.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.