Patent · US Active

Folding spindle and bearing assembly in a folding rotor blade assembly

US10703460B2 · kind B2 · utility

2Cited by

25References

17Claims

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	Jul 7, 2020
Priority date	—
Expiry date	Oct 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 grip with dual concentric blade bolts having a common central axis providing a pivotal axis inboard of an outboard bearing. A folding spindle connects the outboard bearing to an outboard tip of a yoke. The outboard bearing and the spindle fold with the rotor blade relative to the yoke. 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.