# US 11,993,494 B2 · Rescue hoist cable angle exceedance detection arrangement

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- Number: US 11,993,494 B2
- Document ID: US11993494B2
- Status: Granted
- Kind: B2
- Application number: 17/828,929
- Filed: 2022-05-31
- Published: 2022-09-15
- Granted: 2024-05-28
- Earliest claimed: 2018-07-13
- Assignees: Goodrich Corporation
- Applicants: Goodrich Corporation
- Inventors: David R. Lopes; Bejan Maghsoodi; Zachary Limas; Steven D. Mahnken
- Web page: https://patentgrep.com/patent/US11993494B2

## CPC

- B66D 1/28: Other constructional details
- B64D 1/22: Taking-up articles from earth's surface
- B66D 1/36: Guiding, or otherwise ensuring winding in an orderly manner, of ropes, cables, or chains
- B66D 1/485: {electrical}
- B66D 1/54: Safety gear
- B66D 1/60: adapted for special purposes
- G01C 1/00: Measuring angles
- B66D: CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS (winding or unwinding ropes or cables for feeding or storage purposes B65H; rope or cable winding or unwinding mechanisms for lifts B66B)
- B64D: EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- G01C: MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY (measuring liquid level G01F; radio navigation, determining distance or velocity by use of propagation effects, e.g. Doppler effects, propagation time, of radio waves, analogous arrangements using other waves G01S)

## Abstract

A hoist system may include an airframe, a cable disposed between the hoist assembly and a hook assembly, and a cable angle exceedance detection arrangement. The cable angle exceedance detection arrangement may include a housing comprising a first end and a second end, a payout disposed within the housing and comprising an aperture within an interior surface and disposed a first end and a second end of the payout, a detection member coupled to the housing, and a wiring assembly coupled to and disposed between the detection member and a controller, wherein the controller is coupled with a display assembly via a communication assembly.

## Claims

### Claim 1

A hoist system comprising,
an airframe mechanically coupled to a hoist assembly;
a cable disposed between the hoist assembly and a hook assembly;
a cable angle exceedance detection arrangement, wherein the cable angle exceedance detection arrangement comprises:
a housing comprising a first aperture extending therethrough defining an axis, the first aperture being configured to allow the cable to extend through the housing from a first end of the housing, wherein the cable is aligned with the axis, to a second end of the housing, wherein the cable is configured to move with respect to the housing in a first direction parallel to the axis from the second end of the housing towards the first end of the housing in response to being wound about a drum, and the cable is configured to move with respect to the housing in a second direction parallel to the axis from the first end of the housing towards the second end of the housing in response to being unwound from the drum;
a payout disposed within the housing and comprising an aperture, wherein the aperture is disposed within an inner surface of the payout and wherein the aperture spans from a first end of the payout to a second end of the payout;
a detection member coupled to the housing and configured to be contacted by the cable in response to a fleet angle defined between the axis and the cable at the second end of the housing exceeding a selected value, wherein the detection member is located more proximate to the second end of the housing than the first end of the housing; and
a wiring assembly coupled to and disposed between the detection member and a controller, wherein the controller is coupled with a display assembly via a communication assembly.

### Claim 2 (depends on 1)

The hoist system of claim 1, wherein the detection member comprises a conductive material.

### Claim 3 (depends on 1)

The hoist system of claim 1, wherein the cable angle exceedance detection arrangement further comprises a cap positioned downstream of at least a portion of the detection member.

### Claim 4 (depends on 3)

The hoist system of claim 3, wherein the cable angle exceedance detection arrangement further comprises an insulator disposed between the detection member and the cap.

### Claim 5 (depends on 1)

The hoist system of claim 1, wherein the cable angle exceedance detection arrangement further comprises an anti-rotation feature coupled to the detection member.

### Claim 6 (depends on 5)

The hoist system of claim 5, wherein the anti-rotation feature comprises a first tab and a second tab, wherein the first tab and the second tab are coupled to the detection member.

### Claim 7 (depends on 1)

The hoist system of claim 1, wherein contact between the cable and the detection member initiates a signal sent from the wiring assembly to the display assembly.

### Claim 8 (depends on 1)

The hoist system of claim 1, wherein the first end of the payout has a smaller diameter than the second end of the payout.