IP Library Granted Patent US 7,350,751
Granted Patent B2
US 7,350,751 · App. 11/399,977 · Granted Apr 1, 2008

Anti-flip landing gear for aircraft

Assignee: Icon Aviation, Inc.
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Quick Facts
Patent No.
US 7,350,751
App. No.
11/399,977
Granted
Apr 1, 2008
Kind
B2
Abstract

A system for controlling landing gear of an aircraft is disclosed. The apparatus includes a sensor for sensing water, wherein the sensor is coupled to the landing gear and a retracting device for retracting the landing gear when the sensor senses a body of water. In one alternative, the aircraft is an amphibious aircraft and the sensor senses electrical conductivity. In another alternative, the retracting device comprises a hydraulic system for deploying and retracting the landing gear, wherein the hydraulic system retracts the landing gear when the sensor senses a body of water. In yet another alternative, the retracting device comprises a locking mechanism that locks the landing gear to the aircraft, wherein the locking mechanism unlocks the landing gear so as to detach it from the aircraft when the sensor senses a body of water.

Claims (29)

1. A system for controlling landing gear of an aircraft, comprising:

landing gear including a retracting device for retracting the landing gear;

an electrical conductivity water sensor coupled to the landing gear, wherein the sensor transmits a signal when water is sensed; and

a microprocessor configured for automatically initiating retraction of the landing gear when the signal is received from the water sensor.

2. The system of claim 1 , wherein the aircraft is an amphibious aircraft.

3. The system of claim 2 , wherein the signal is an electrical signal transmitted through a conductor.

4. The system of claim 2 , wherein the retracting device receives a signal from the microprocessor initiating retraction of the landing gear.

5. The system of claim 4 , wherein the retracting device is a mechanical device.

6. The system of claim 4 , wherein the retracting device can further detach the landing gear.

7. The system of claim 4 ,

wherein the retracting device is a hydraulic system for deploying and retracting the landing gear.

8. The system of claim 4 ,

wherein the retracting device is an electrical system for deploying and retracting the landing gear.

9. The system of claim 4 , further comprising:

a locking mechanism that locks the landing gear to the aircraft, wherein the locking mechanism unlocks the landing gear so as to detach it from the aircraft when initiated by the microprocessor.

10. The system of claim 2

wherein the microprocessor is further configured for considering additional sensor data before sending a signal to the landing gear so as to initiate retraction when the signal is received from the water sensor.

11. The system of claim 10 ,

wherein the retracting device is a hydraulic system for deploying and retracting the landing gear.

12. The system of claim 10 ,

wherein the retracting device is an electrical system for deploying and retracting the landing gear.

13. The system of claim 10 , further comprising:

a locking mechanism that locks the landing gear to the aircraft, wherein the locking mechanism receives a signal from the processor to unlock the landing gear so as to detach it from the aircraft.

14. The system of claim 13 , wherein the locking mechanism comprises a pneumatic cylinder and a pneumatic relief valve that releases pressure within the pneumatic cylinder when the locking mechanism receives a signal from the processor to unlock the landing gear so as to detach it from the aircraft.

15. The system of claim 13 , wherein the locking mechanism comprises a mechanical lock that unlocks when the locking mechanism receives a signal from the processor to unlock the landing gear so as to detach it from the aircraft.

16. A system for controlling landing gear of an aircraft, comprising:

landing gear including a retracting device for retracting the landing gear;

at least one accelerometer for sensing forward rotation of the aircraft, wherein the at least one accelerometer transmits a signal when forward rotation of the aircraft is sensed;

a microprocessor configured for automatically initiating retraction of the landing gear when the signal is received from the at least one accelerometer.

Assignments (6)
CORRECTIVE ASSIGNMENT TO CORRECT THE ASSIGNEE PREVIOUSLY RECORDED ON REEL 70513 FRAME 1. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Recorded Apr 16, 2025
From: SEAPLANE DEBTOR 1, INC., FORMERLY ICON AIRCRAFT, INC.
To: SG INVESTMENT AMERICA, INC.
Reel/Frame 070878/0571 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 14, 2025
From: SEAPLANE DEBTOR 1, INC., FORMERLY ICON AIRCRAFT, INC.
To: SG INVESTMENT AMERICA, INC
Reel/Frame 070513/0001 →
RELEASE OF SECURITY INTEREST Recorded May 15, 2019
From: VENTURE LENDING & LEASING VII, INC.
To: ICON AIRCRAFT, INC.
Reel/Frame 049189/0525 →
SECURITY INTEREST Recorded Oct 24, 2014
From: ICON AIRCRAFT, INC.
To: VENTURE LENDING & LEASING VII, INC.
Reel/Frame 034026/0838 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 17, 2012
From: ICON AVIATION, INC.,
To: ICON AIRCRAFT, INC.
Reel/Frame 027544/0478 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 26, 2007
From: HAWKINS, THOMAS
To: ICON AVIATION, INC.
Reel/Frame 019091/0226 →
Continuity (2)
Provisional Application 6066976200 · Apr 8, 2005
Related Publication 20060226286A1 · Oct 12, 2006