# US 2024/0201706 A1 · Drone saw

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- Number: US 2024/0201706 A1
- Document ID: US20240201706A1
- Status: Published application
- Kind: A1
- Application number: 18/540,477
- Filed: 2023-12-14
- Published: 2024-06-20
- Earliest claimed: 2022-12-19
- Inventors: Kevin Good; Daniel J. Good
- Web page: https://patentgrep.com/patent/US20240201706A1

## CPC

- G05D 1/6895: {the payload being a manipulator arm}
- A01G 3/086: {Chain saws}
- A01G 23/095: Delimbers (A01G23/083 takes precedence)
- B64U 40/20: for in-flight adjustment of the base configuration
- B64U 60/40: foldable or retractable
- G05D 1/226: Communication links with the remote-control arrangements
- B64U 30/299: Rotor guards (ducted or shrouded rotors B64U30/26; guards used as ground propulsion B64U60/60)
- B64U 2101/40: for agriculture or forestry operations
- G05D 2105/15: for harvesting, sowing or mowing in agriculture or forestry
- G05D 2109/254: {Flying platforms, e.g. multicopters}
- G05D: SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- A01G: HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING (picking of fruits, vegetables, hops or the like A01D46/00; propagating unicellular algae C12N1/12)
- B64U: UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR

## Abstract

A battery powered octocopter drone with a protective frame. An articulating arm is mounted to the drone with a battery powered chain saw positioned along the end of the articulating arm. The chainsaw allows for the trimming of remote trees and bushes previously only accessible by a ladder or bucket lift. The drone is adjustable forward/aft to compensate for the center of gravity. The drone includes a remote control receiver, telemetry and an antenna allowing an operator to control all aspects of the drone from a remote position.

## Claims

### Claim 1

An unmanned aerial vehicle (UAV) for trimming tree branches, said UAV comprising:
a base supporting a propulsion system for generating thrust through a plurality of flight impellers secured thereto to enable controlled flight;
a protective frame coupled to said base extending outwardly that provides protective enclosures for said impellers;
a first articulating arm secured to said base having a pivoting rotational coupling along a proximal end with the length of said first articulating arm extending to a distal end and a second articulating arm having a proximal end with the length of said second articulating arm extending to a distal end, wherein said first articulating arm is pivotally coupled to said second articulating arm below a lower surface of said base;
a saw mechanism coupled to said distal end of said second articulating arm having a cutting chain that spins around a chain base;
a control system including a set of processors and actuators configured to receive and process input data and control the flight parameters of the UAV; and
a power source for providing electrical power to the UAV components, said power source including a battery pack slidably positioned along a slide table coupled to said lower surface of said base and movable between a forward position along said proximal end of said first articulating arm and an aft position along an outer edge of said frame.

### Claim 2 (depends on 1)

The UAV for trimming tree branches according to claim 1, wherein said protective frame is coupled to said base and extends outwardly therefrom provides a protective enclosure for said lower surface of said base.

### Claim 3 (depends on 1)

The UAV for trimming tree branches according to claim 1, wherein said distal end of said second articulating arm includes an electric motor for rotation of said chain.

### Claim 4 (depends on 1)

The UAV for trimming tree branches according to claim 1, wherein said battery power pack is adjustable between the forward and aft position to provide compensation for the center of gravity when the repositioning of said chainsaw occurs.

### Claim 5 (depends on 1)

The UAV for trimming tree branches according to claim 1, includes a retractable landing gear having feet that extend vertically for landing and storage.

### Claim 6 (depends on 5)

The UAV for trimming tree branches according to claim 5, wherein said feet are foldable against said frame.

### Claim 7 (depends on 1)

The UAV for trimming tree branches according to claim 1, wherein said base may be stacked upon a second drone member.

### Claim 8 (depends on 1)

The UAV for trimming tree branches according to claim 1, wherein said control system includes a receiver, antenna, and appropriate telemetry to interface with a remote transmitter.

### Claim 9 (depends on 8)

The UAV for trimming tree branches according to claim 8, wherein said remote control transmitter operates the speed of the chain rotation, direction, as well as angular articulation of said second articulating arm, and the rotational position of said first articulating arm.

### Claim 10 (depends on 1)

The UAV for trimming tree branches according to claim 1, wherein said base includes a micro engine coupled to a fuel tank to generate power for recharging said battery power pack and to operate said saw.

### Claim 11 (depends on 1)

The UAV for trimming tree branches according to claim 1, wherein said base is composed of lightweight carbon fiber.

### Claim 12 (depends on 1)

The UAV for trimming tree branches according to claim 1, wherein said chain base operates at a position 180° from said battery power pack to allow ease of battery power pack movement to operate as a counterweight.

### Claim 13 (depends on 1)

The UAV for trimming tree branches according to claim 1, including a guard encompassing said chain along an upper edge of said chain base, wherein said guard allows cutting only along one edge and provides shielding from engaging limbs on multiple chain base edges.