Single ratchet actuator with dual air drivers
US8894039B2 · kind B2 · utility
4Cited by
6References
16Claims
0Family size
Inventor
Key dates
| Filing date | Aug 10, 2012 |
| Grant date | Nov 25, 2014 |
| Priority date | — |
| Expiry date | Aug 10, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/18056
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An air driven actuator (100) uses oppositely disposed reciprocating air drivers (122, 124) to cause a single ratchet (146) to rotate via a drive plate (150) and a pawl (170). The ratchet (146) rotates a drive tube (144) that can further extend or retract landing gear on a semi-trailer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.