Simultaneous twin pitch adjustment system
US8317477B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 2, 2010 |
| Grant date | Nov 27, 2012 |
| Priority date | — |
| Expiry date | Aug 14, 2031 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04F21/247
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Disclosed is a simultaneous twin pitch adjustment system that includes a flexible shafting cord operatively connected to first and second couplers. The couplers are supported by posts and are operatively connected to pitch communicators. A handle is supported by each post and is configured such that manipulation of the handle translates to adjustment of the pitch of an associated rotor blade assembly. When the simultaneous twin pitch adjustment system is engaged, manipulation of one handle further translates, via the flexible shafting cord, to adjustment of the pitch of another rotor blade assembly in an amount essentially equal to the amount the associated rotor blade assembly is adjusted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.