IP Library Granted Patent US 12,522,354
Granted Patent B2
US 12,522,354 · App. 17/864,271 · Granted Jan 13, 2026

Augmented hoist cable cut algorithm

Inventors: Sridhar Hariram (Bangalore, IN); Rajagopal Kalathur Srinivasan (Chandler, AZ); Greeshma Nellikkurussi Kalarikkal (Kerala, IN); Manju Maheve (Bangalore, IN)
Assignee: HORNET ACQUISITIONCO, LLC
B64D1/02B66D1/58
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Quick Facts
Patent No.
US 12,522,354
App. No.
17/864,271
Filed
Jul 13, 2022
Granted
Jan 13, 2026
Kind
B2
Art Unit
3653
USPC
700/213
Abstract

Systems and methods for operating a hoist and hook assembly may method comprising determining a clutch slip via a clutch sensor, determining an overload via a load sensor, and cutting a cable coupled to the hoist and hook assembly in response to the clutch slip determination and the overload determination.

Claims (86)

1 . A method of operating a hoist and hook assembly, comprising:

determining, by a controller, a clutch slip via a clutch sensor;

determining, by the controller, an overload via a load sensor;

determining a duration of at least one of the clutch slip or the sensed overload is at or above a first predefined threshold; and

cutting, by the controller, a cable coupled to the hoist and hook assembly in response to the clutch slip determination and the overload determination.

2 . The method of claim 1 , further comprising determining, by the controller, a first clutch slip via a first clutch sensor on a motor side of a gear train of the hoist and hook assembly.

3 . The method of claim 2 , further comprising determining, by the controller, a second clutch slip via a second clutch sensor on a drum side of the gear train of the hoist and hook assembly.

4 . The method of claim 1 , further comprising initiating a cable cut in response to determining the clutch slip and the overload.

5 . The method of claim 1 , further comprising indicating aurally or visually that a second predefined threshold has elapsed.

6 . The method of claim 5 , further comprising cutting the cable in response to the third predefined threshold elapsing and a cable cut switch not being set to disable.

7 . A non-transitory, tangible computer readable storage medium having instructions stored thereon that, in response to execution by a processor, cause the processor to perform operations comprising:

determining, by the processor, a clutch slip using a clutch sensor;

determining, by the processor, an overload using a load sensor;

determining a duration of at least one of the clutch slip or the sensed overload is at or above a first predefined threshold; and

cutting, by the processor, a cable coupled to the hoist and hook assembly using a cable cut cartridge in response to the clutch slip determination and the overload determination.

8 . The non-transitory, tangible computer readable storage medium of claim 7 , wherein the operations further comprise determining, by the processor, a first clutch slip via a first clutch sensor on a motor side of a gear train of the hoist and hook assembly.

9 . The non-transitory, tangible computer readable storage medium of claim 8 , wherein the operations further comprise determining, by the processor, a second clutch slip via a second clutch sensor on a drum side of the gear train of the hoist and hook assembly.

10 . The non-transitory, tangible computer readable storage medium of claim 7 , wherein the operations further comprise initiating a cable cut in response to determining the clutch slip and the overload.

11 . The non-transitory, tangible computer readable storage medium of claim 7 , wherein the operations further comprise indicating aurally or visually that a second predefined threshold has elapsed.

12 . The non-transitory, tangible computer readable storage medium of claim 11 , wherein the operations further comprise cutting the cable in response to the third predefined threshold elapsing and a cable cut switch not being set to disable.

13 . A hoist system comprising,

an airframe mechanically coupled to a hoist assembly;

a cable disposed between the hoist assembly and a hook assembly;

a clutch sensor coupled to the hoist assembly;

a load sensor coupled to the cable; and

a controller configured to:

determine a clutch slip via the clutch sensor;

determine an overload via the load sensor;

determine a duration of the clutch slip is at or above a first predefined threshold and a duration of the sensed overload is at or above a second predefined threshold; and

cut the cable via a cable cut cartridge in response to the clutch slip determination and the overload determination.

14 . The hoist system of claim 13 , wherein the controller is further configured to determine a first clutch slip via a first clutch sensor on a motor side of a gear train of the hoist and hook assembly and a second clutch slip via a second clutch sensor on a drum side of the gear train of the hoist assembly.

15 . The hoist system of claim 13 , wherein the controller is further configured to:

initiate a cable cut in response to determining the clutch slip and the overload;

indicate aurally or visually that a third predefined threshold has elapsed; and

cut the cable in response to the third predefined threshold elapsing and a cable cut switch not being set to disable.

16 . A method of operating a hoist and hook assembly, comprising:

determining, by a controller, a first clutch slip via a first clutch sensor on a motor side of a gear train of the hoist and hook assembly;

determining, by the controller, an overload via a load sensor; and

cutting, by the controller, a cable coupled to the hoist and hook assembly in response to the clutch slip determination and the overload determination.

17 . The method of claim 16 , further comprising determining, by the controller, a second clutch slip via a second clutch sensor on a drum side of the gear train of the hoist and hook assembly.

18 . A method of operating a hoist and hook assembly, comprising:

determining, by a controller, a clutch slip via a clutch sensor;

determining, by the controller, an overload via a load sensor;

initiating, by the controller, a cable cut in response to determining the clutch slip and the overload; and

cutting a cable coupled to the hoist and hook assembly in response to the clutch slip determination and the overload determination.

19 . A method of operating a hoist and hook assembly, comprising:

determining, by a controller, a clutch slip via a clutch sensor;

determining, by the controller, an overload via a load sensor;

indicating aurally or visually that a predefined threshold has elapsed; and

cutting, by the controller, a cable coupled to the hoist and hook assembly in response to the clutch slip determination and the overload determination.

20 . A non-transitory, tangible computer readable storage medium having instructions stored thereon that, in response to execution by a processor, cause the processor to perform operations comprising:

determining, by the processor, a first clutch slip via a first clutch sensor on a motor side of a gear train of the hoist and hook assembly;

determining, by the processor, an overload using a load sensor; and

cutting, by the processor, a cable coupled to the hoist and hook assembly using a cable cut cartridge in response to the clutch slip determination and the overload determination.

21 . The non-transitory, tangible computer readable storage medium of claim 20 , wherein the operations further comprise determining, by the processor, a second clutch slip via a second clutch sensor on a drum side of the gear train of the hoist and hook assembly.

22 . A non-transitory, tangible computer readable storage medium having instructions stored thereon that, in response to execution by a processor, cause the processor to perform operations comprising:

determining, by the processor, a clutch slip using a clutch sensor;

determining, by the processor, an overload using a load sensor;

initiating, by the processor, a cable cut in response to determining the clutch slip and the overload; and

cutting a cable coupled to the hoist and hook assembly using a cable cut cartridge in response to the clutch slip determination and the overload determination.

23 . A non-transitory, tangible computer readable storage medium having instructions stored thereon that, in response to execution by a processor, cause the processor to perform operations comprising:

determining, by the processor, a clutch slip using a clutch sensor;

determining, by the processor, an overload using a load sensor;

indicating aurally or visually that a predefined threshold has elapsed; and

cutting, by the processor, a cable coupled to the hoist and hook assembly using a cable cut cartridge in response to the clutch slip determination and the overload determination.

24 . A hoist system comprising,

an airframe mechanically coupled to a hoist assembly;

a cable disposed between the hoist assembly and a hook assembly;

a clutch sensor coupled to the hoist assembly;

a load sensor coupled to the cable; and

a controller configured to:

determine a first clutch slip via a first clutch sensor on a motor side of a gear train of the hoist and hook assembly;

determine a second clutch slip via a second clutch sensor on a drum side of the gear train of the hoist assembly;

determine an overload via the load sensor; and

cut the cable via a cable cut cartridge in response to the clutch slip determination and the overload determination.

25 . A hoist system comprising,

an airframe mechanically coupled to a hoist assembly;

a cable disposed between the hoist assembly and a hook assembly;

a clutch sensor coupled to the hoist assembly;

a load sensor coupled to the cable; and

a controller configured to:

determine a clutch slip via the clutch sensor;

determine an overload via the load sensor;

initiate a cable cut in response to determining the clutch slip and the overload;

indicate aurally or visually that a predefined threshold has elapsed; and

at least one of cut the cable in response to the third predefined threshold elapsing and a cable cut switch not being set to disable or cut the cable via a cable cut cartridge in response to the clutch slip determination and the overload determination.

Assignments (6)
RELEASE OF SECURITY INTEREST Recorded Dec 13, 2024
From: BARINGS FINANCE LLC, AS COLLATERAL AGENT
To: HORNET ACQUISITIONCO, LLC; INTERNATIONAL MEZZO TECHNOLOGIES, INC.
Reel/Frame 069645/0938 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 13, 2024
From: GOODRICH CORPORATION
To: HORNET ACQUISITIONCO, LLC
Reel/Frame 069648/0049 →
U.S. INTELLECTUAL PROPERTY SECURITY AGREEMENT Recorded Dec 12, 2024
From: INTERNATIONAL MEZZO TECHNOLOGIES, INC.; LIFESAVING SYSTEMS, LLC; HORNET ACQUISITIONCO, LLC; HARTZELL ENGINE TECHNOLOGIES LLC; AIR COMM CORPORATION LLC; ONBOARD SYSTEMS INTERNATIONAL, LLC; ENVIRO SYSTEMS, INC.; TAILWIND TECHNOLOGIES LLC; HARTZELL PROPELLER LLC; AMERITECH INDUSTRIES, INC.
To: JPMORGAN CHASE BANK, N.A.
Reel/Frame 069604/0015 →
SECURITY INTEREST Recorded Oct 31, 2024
From: HORNET ACQUISITIONCO, LLC; INTERNATIONAL MEZZO TECHNOLOGIES, INC.
To: BARINGS FINANCE LLC, AS COLLATERAL AGENT
Reel/Frame 069284/0088 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 13, 2022
From: HARIRAM, SRIDHAR; SRINIVASAN, RAJAGOPAL KALATHUR; KALARIKKAL, GREESHMA NELLIKKURUSSI; MAHEVE, MANJU
To: GOODRICH AEROSPACE SERVICES PRIVATE LIMITED
Reel/Frame 060500/0509 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 13, 2022
From: GOODRICH AEROSPACE SERVICES PRIVATE LIMITED
To: GOODRICH CORPORATION
Reel/Frame 060500/0522 →