# US 2019/0170106 A1 · Engine Starter Attachments for Drill/Driver Gun

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- Number: US 2019/0170106 A1
- Document ID: US20190170106A1
- Status: Published application
- Kind: A1
- Application number: 16/226,934
- Filed: 2019-01-31
- Published: 2019-06-06
- Earliest claimed: 2017-01-10
- Assignees: Skunk Works, LLC
- Applicants: Skunk Works, LLC
- Inventors: Robert H. Koehler
- Web page: https://patentgrep.com/patent/US20190170106A1

## CPC

- F02N 11/12: Starting of engines by means of mobile, e.g. portable, starting sets
- B25B 13/46: of the ratchet type, for providing a free return stroke of the handle
- F02B 63/02: for hand-held tools
- F02N 1/00: Starting apparatus having hand cranks (with intermediate power storage F02N5/00 - F02N15/00)
- F02N 15/006: {Assembling or mounting of starting devices}
- F02N 11/14: Starting of engines by means of electric starters with external current supply (F02N11/12 takes precedence)
- F02N: STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- B25B: TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING, OR HOLDING
- F02B: INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL (gas-turbine plants F02C; hot-gas or combustion-product positive-displacement engine plants F02G)

## Abstract

A specialty nut and specialty ratchet driver device used to start an internal combustion engine, each with an integrated one direction clutch, designed to be an attachment for a commercially available battery operated drill/driver gun. The specialty ratchet driver with an integrated one direction clutch is inserted into the driver receptacle of the socket placed over the nut on the crank shaft of the engine. One end of a drive shaft is inserted into the one direction clutch portion of the specialty ratchet driver device and the other end of the drive shaft is inserted into the chuck of a battery operated drill/driver gun. The torque of the drill/driver gun turns the crank shaft of the engine with sufficient force to initiate starting of the engine. The one direction clutch then allows the engine to turn faster than the drill/driver so as not to impede the engine start up.

## Claims

### Claim 1

An internal combustion engine starter attachment for a drill/driver gun comprising:
a nut with a front portion, a back portion, an outer surface and an inner surface;
a one direction clutch having an inner diameter and an outer diameter;
a drive shaft having a first end and a second end;
the outer diameter of the one direction clutch being fixed into the front portion of the inner surface of the nut and the inner diameter of the one direction clutch adapted to removably receive the first end of the drive shaft;
the back portion of the nut having threads on the inner surface to attach to a threaded portion of a crank shaft of an internal combustion engine;
the second end of the of the drive shaft adapted to be inserted into a chuck of the drill/driver gun.

### Claim 2 (depends on 1)

The internal combustion engine starter of claim 1, wherein the second end of the drive shaft has a hex configuration.