Patent · US Active

Dual blade fold bolts and inboard centrifugal bearing in a folding rotor blade assembly

US10577079B2 · kind B2 · utility

1Cited by

25References

20Claims

0Family size

Assignee

Bell Helicopter Textron Inc. · US

Inventors

Jared Mark Paulson · Fort Worth, US
Tyler Wayne Baldwin · Keller, US
Kyle Thomas Cravener · Arlington, US

Key dates

Filing date	Dec 18, 2017
Grant date	Mar 3, 2020
Priority date	—
Expiry date	Jan 11, 2038

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB64C29/0033
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A folding rotor blade assembly for a tiltrotor aircraft comprising a rotor blade pivotally connected to a yoke with dual concentric blade bolts having a common central axis providing a pivotal axis inboard of an outboard shear bearing. In use, the compact folded arrangement of the rotor blades reduces folded aircraft dimensions in response to ever increasing restricted storage space parameters.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.