IP Library Granted Patent US 12,221,226
Granted Patent B2
US 12,221,226 · App. 18/627,713 · Granted Feb 11, 2025

Contactless power generator for powering lights on a propeller

Inventor: Brian T. Cozine (Kechi, KS)
Assignee: Textron Aviation Inc.
B64D47/06B64C11/00B64D41/00F21S9/04H02G1/06H02G3/22H02K99/10B64D2203/00F21W2107/30
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Quick Facts
Patent No.
US 12,221,226
App. No.
18/627,713
Granted
Feb 11, 2025
Kind
B2
Abstract

A system and a method for contactless power generation for a lighting arrangement configured on an aircraft propeller. Power is produced when a magnetic field produced by an arrangement of magnets on an airframe magnetically interacts with coils configured on an aircraft propeller. When the propeller spins, rotation of the mounted coils through the magnetic fields of the magnets generate power. Electrical wiring carrying charge from the coils to the lights is laid into grooves formed in propeller blades which connect to lights inserted in formed sockets.

Claims (19)

1. A contactless power generation system for an aircraft lighting arrangement, the power generation system comprising: at least one magnet configured on a stationary aircraft structure; at least one coil mounted on an aircraft apparatus, the coil generating an electrical current using the magnet upon rotation of the aircraft apparatus; an electrical connection electrically connecting the coil to a lighting arrangement existing on a portion of the aircraft apparatus; a first socket formed into a forward facing surface of a blade tip of the aircraft apparatus, and a second socket formed into a rear facing surface of the blade tip, wherein the lighting arrangement includes a first lighting component incorporated into the first socket and a second lighting component incorporated into the second socket.

2. The system of claim 1 wherein the aircraft apparatus is a propeller.

3. The system of claim 1 wherein the coil is mounted to a propeller hub.

4. The system of claim 1 wherein the magnet is mounted to a cowl.

5. The system of claim 2 wherein the electrical connection is inlaid into a groove formed in the propeller.

6. The system of claim 5 wherein the groove is formed into a forward facing surface of a blade of the propeller.

7. The system of claim 1 comprising a through hole which extends from the first socket to the second socket and is configured to allow for electrical connection between the first lighting component and the second lighting component.

8. The system of claim 6 comprising a filling agent applied over the electrical connection inlaid in the groove.

9. A method for powering a lighting system in an aircraft propeller, the method comprising: mounting a coil into the propeller; incorporating a magnet into a stationary aircraft structure of the aircraft across from the coil; connecting the coil to the lighting system on the aircraft propeller to power the lighting system using an electrical conduit; forming the first socket into a front facing surface of a propeller tip, forming a second socket into a rear facing surface of the propeller tip, and forming the lighting system including independent LED light sources in each of the first socket and the second socket.

10. The method of claim 9 comprising:

forming a groove into a surface of a blade of the propeller to receive the electrical conduit;

forming a first socket proximate an outer area of the propeller blade to receive at least a portion of the lighting system; and

covering the groove and the first socket with a filling agent.

11. The method of claim 10 comprising forming the groove near a trailing edge of a front facing surface of the blade.

12. The method of claim 10 comprising using an epoxy as the filling agent.

13. An aircraft lighting system comprising: a coil mounted onto an aircraft propeller; a magnet mounted onto stationary aircraft structure across from the coil; a first light source formed into a front facing surface of a blade tip of the aircraft propeller; a second light source formed into a rear facing surface of a blade tip of the aircraft propeller; and an electrical connection established between the coil, the first light source, and the second light source.

14. The system of claim 13 comprising a groove formed into a blade surface on the aircraft propeller, the groove configured to house the electrical connection.

15. The system of claim 13 wherein the first light source is configured to emit light having a different color than is emitted from the second light source.

16. The system of claim 14 wherein the groove is formed into a front facing surface of the aircraft propeller.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 27, 2025
From: TEXTRON AVIATION INC.
To: TEXTRON AVIATION RHODE ISLAND INC.
Reel/Frame 071408/0678 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 27, 2025
From: TEXTRON AVIATION RHODE ISLAND INC.
To: TEXTRON INNOVATIONS INC.
Reel/Frame 071408/0714 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 5, 2024
From: COZINE, BRIAN T.
To: TEXTRON AVIATION INC.
Reel/Frame 067016/0337 →
Continuity (2)
Provisional Application 63494504 · Apr 6, 2023
Related Publication 20240336371A1 · Oct 10, 2024
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