Patent · US Active

Insert for a blade of a rotary-wing aircraft

US11891169B2 · kind B2 · utility

0Cited by

15References

16Claims

0Family size

Assignee

Textron Innovations Inc. · US

Inventors

Paul Sherrill · Grapevine, US
Robert Self · Fort Worth, US

Key dates

Filing date	Sep 6, 2019
Grant date	Feb 6, 2024
Priority date	—
Expiry date	Mar 19, 2041

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF05D2300/603
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

In an implementation, a rotor blade (alternatively referred to herein as “blade”) for a helicopter or other aircraft may include an outer layer. The outer layer may define a cavity. The outer layer may at least partially correspond to an airfoil, e.g., a wing. One or more inserts may be included within the cavity and be encompassed thereby. The first insert may have a density of at least 0.6 pounds per cubic inch.

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