IP Library Granted Patent US 12,448,116
Granted Patent B2
US 12,448,116 · App. 18/894,867 · Granted Oct 21, 2025

Electric servo dump gate system on a crop duster

Inventor: Troy Reabe (De Pere, WI)
B64C19/02B64D1/06B64D1/16F16H21/06F16H21/44F16H51/00G05G1/04G05G5/005G05G2505/00
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Quick Facts
Patent No.
US 12,448,116
App. No.
18/894,867
Granted
Oct 21, 2025
Kind
B2
Abstract

The present invention is an Electric servo system which controls and automates gate openings based on GPS speed and position data that results in precise and reliable modern variable and constant rate application. The Electric servo system also allows for Mechanical gate linkages to remain intact, resulting in few changes to the aircraft and redundancy of emergency components. A Mechanical input connect/disconnect is used to effortlessly transfer between the automated Electric servo system and the Mechanical gate system.

Claims (47)

1. A dump gate system on a crop duster with a dump gate comprising:

a powered gate system connectable to the dump gate, the powered gate system comprising a servo and a series of mechanical components that connect the servo to the dump gate to actuate the dump gate;

a mechanical gate system with disconnect connectable to the dump gate, the mechanical gate system with disconnect comprising a series of cranks and linkages, a pilot input bell crank, and a mechanical pilot disconnect, wherein the mechanical gate system with disconnect is capable of being connected to the servo; and,

the mechanical pilot disconnect capable of providing continuous mechanical connection from the pilot input bell crank to the dump gate to enable the dump gate system to work manually by just insertion of a pin to the mechanical pilot disconnect.

2. The dump gate system of claim 1 , wherein just insertion of the pin to the mechanical pilot disconnect thereby enables a pilot to manually open and close the dump gate by at least one member in the group comprising the powered gate system and the mechanical gate system.

3. The dump gate system of claim 1 , wherein the mechanical gate system is capable of enabling a pilot to manually open and close the dump gate with just insertion of the pin.

4. The dump gate system of claim 1 , wherein just insertion of the pin reconnects the mechanical gate system enabling a pilot to manually open the dump gate to an extent that the dump gate opens in order to continue to work the dump gate.

5. The dump gate system of claim 4 , further comprising the dump gate capable of being manually opened to the extent that the dump gate opens while using a back-drivable motor.

6. The dump gate system of claim 5 , further comprising the dump gate capable of being manually opened to the extent that the dump gate opens including a force to open the dump gate being reduced by a high torque motor geared to reduce the force to back-drive the back-drivable motor.

7. The dump gate system of claim 1 , wherein the pin is a spring loaded pin.

8. The dump gate system of claim 1 , wherein the servo is an electric servo.

9. The dump gate system of claim 1 , wherein the servo is an back-drivable electric servo.

10. The dump gate system of claim 1 , further providing the dump gate system with an open/close switch which actuates the dump gate or ties to a GPS to automate dump gate openings based on stored application data, speed, and location data.

11. The dump gate system of claim 1 , wherein the powered gate system comprises the servo, an electric gate controller, and a GPS; and, wherein the servo is a back-drivable servo.

12. The dump gate system of claim 1 , wherein all the mechanical components of the powered gate system are necessary for the dump gate system to provide continuous mechanical connection to the dump gate to enable the dump gate system to continue to work in case of a failure of the powered gate system, and continually uses these mechanical components providing redundancy of an emergency system when powered operation of the dump gate system occurs.

13. The dump gate system of claim 12 , wherein the series of mechanical components of the powered gate system are continually being used while the powered gate system is in operation and this provides a continual check of the emergency system because same mechanical components to actuate the dump gate manually are used in the powered gate system and the mechanical gate system.

14. The dump gate system of claim 1 , further comprising a switch which actuates the dump gate in a powered operation mode and in a mechanical operation mode.

15. The dump gate system of claim 1 , further comprising a gate controller which actuates the dump gate in a powered operation mode and in a mechanical operation mode.

16. A dump gate system on a crop duster comprising:

a powered gate system and a mechanical gate system with disconnect, wherein the powered gate system comprises a series of mechanical components and servo that operate to open and close a dump gate;

the mechanical gate system with disconnect comprising a series of connected components including cranks, linkages and a mechanical pilot disconnect, wherein the powered gate system and the mechanical gate system with disconnect are connected together via the mechanical pilot disconnect; and, the mechanical components and the servo of the powered gate system are capable of providing continuous mechanical connection to the dump gate and are also components used for the dump gate system to continue to work manually upon just insertion of a pin to the mechanical pilot disconnect of the mechanical gate system.

17. The dump gate system of claim 16 , wherein just insertion of the pin to the mechanical pilot disconnect thereby enables a pilot to manually open and close the dump gate by at least one member in the group comprising the powered gate system and the mechanical gate system.

18. The dump gate system of claim 16 , wherein the mechanical gate system is capable of enabling a pilot to manually open and close the dump gate with just insertion of the pin.

19. The dump gate system of claim 16 , wherein just insertion of the pin reconnects the mechanical gate system enabling a pilot to manually open the dump gate to an extent that the dump gate opens in order to continue to work the dump gate.

20. The dump gate system of claim 19 , further comprising the dump gate capable of being manually opened to the extent that the dump gate opens while using a back-drivable motor.

21. The dump gate system of claim 20 , further comprising the dump gate capable of being manually opened to the extent that the dump gate opens including a force to open the dump gate being reduced by a high torque motor geared to reduce the force to back-drive the back-drivable motor.

22. The dump gate system of claim 16 , wherein the pin is a spring loaded pin.

23. The dump gate system of claim 16 , wherein the servo is an electric servo.

24. The dump gate system of claim 16 , wherein the servo is an back-drivable electric servo.

25. The dump gate system of claim 16 , further providing the dump gate system with an open/close switch which actuates the dump gate or ties to a GPS to automate dump gate openings based on stored application data, speed, and location data.

26. The dump gate system of claim 16 , wherein the powered gate system comprises the servo, an electric gate controller, and a GPS; and, wherein the servo is a back-drivable servo.

27. The dump gate system of claim 16 , wherein all the mechanical components of the powered gate system are necessary for the dump gate system to provide continuous mechanical connection to the dump gate to enable the dump gate system to continue to work in case of a failure of the powered gate system, and continually uses these mechanical components providing redundancy of an emergency system when powered operation of the dump gate system occurs.

28. The dump gate system of claim 27 , wherein the series of mechanical components of the powered gate system are continually being used while the powered gate system is in operation and this provides a continual check of the emergency system because same mechanical components to actuate the dump gate manually are used in the powered gate system and the mechanical gate system.

29. The dump gate system of claim 16 , further comprising a switch which actuates the dump gate in a powered operation mode and in a mechanical operation mode.

30. The dump gate system of claim 16 , further comprising a gate controller which actuates the dump gate in a powered operation mode and in a mechanical operation mode.

31. A dump gate system on a crop duster with a powered gate system and a mechanical gate system comprising:

the powered gate system comprising mechanical components, a servo, and a series of components that connect the servo to a dump gate;

the mechanical gate system connected to the servo wherein the mechanical gate system comprises a series of connected components including a pilot input bell crank, cranks and linkages; and,

direct mechanical connection among the mechanical gate system with the mechanical components and the servo of the powered gate system from the pilot input bell crank to the dump gate, thereby enabling the dump gate system to provide continuous mechanical connection to the dump gate to enable the dump gate system to continue to work by actuation of the dump gate by at least one member in the group comprising the powered gate system and the mechanical gate system.

32. The dump gate system of claim 31 , wherein the servo is an electric servo.

33. The dump gate system of claim 31 , wherein the servo is an back-drivable electric servo.

34. The dump gate system of claim 31 , further providing the dump gate system with an open/close switch which actuates the dump gate or ties to a GPS to automate dump gate openings based on stored application data, speed, and location data.

35. The dump gate system of claim 31 , wherein the powered gate system comprises the servo, an electric gate controller, and a GPS; and, wherein the servo is a back-drivable servo.

36. The dump gate system of claim 31 , wherein all the mechanical components of the powered gate system are necessary for the dump gate system to provide continuous mechanical connection to the dump gate to enable the dump gate system to continue to work in case of a failure of the powered gate system, and continually uses these mechanical components providing redundancy of an emergency system when powered operation of the dump gate system occurs.

37. The dump gate system of claim 36 , wherein the mechanical components of the powered gate system are continually being used while the powered gate system is in operation and this provides a continual check of the emergency system because same mechanical components to actuate the dump gate manually are used in the powered gate system and the mechanical gate system.

38. The dump gate system of claim 31 , further comprising a switch which actuates the dump gate in a powered operation mode and in a mechanical operation mode.

39. The dump gate system of claim 31 , further comprising a gate controller which actuates the dump gate in a powered operation mode and in a mechanical operation mode.

Continuity (5)
Continuation 18236592 · Aug 22, 2023
Division 18091939 · Dec 30, 2022
Division 16597468 · Oct 9, 2019
Provisional Application 62743383 · Oct 9, 2018
Related Publication 20250010981A1 · Jan 9, 2025
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