# US 4,399,782 A · Device for starting internal combustion engines

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- Number: US 4,399,782 A
- Document ID: US4399782A
- Status: Granted
- Kind: A
- Application number: 06/303,967
- Filed: 1981-09-21
- Granted: 1983-08-23
- Earliest claimed: 1981-09-21
- Inventors: Jack W. Shelley
- Web page: https://patentgrep.com/patent/US4399782A

## CPC

- F02N 11/12: Starting of engines by means of mobile, e.g. portable, starting sets
- F02B 1/04: with fuel-air mixture admission into cylinder
- Y10T 74/13: Machine starters
- F02N: STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02B: INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL (gas-turbine plants F02C; hot-gas or combustion-product positive-displacement engine plants F02G)
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

A device for transmitting power from a power driving unit to a driven member of an internal combustion engine embodies a first power transmitting member having one end adapted to be detachably connected to the power driving unit. A second power transmitting member in axial alignment with the first power transmitting member has one end adapted to be detachably connected to the driven member of the internal combustion engine. Cooperating male and female threaded members are carried by adjacent end portions of the first and second power transmitting members. Upon rotation of the cooperating members in one direction, the adjacent end portions of the power transmitting members move toward each other and engage each other to transmit power from the power driving unit to the driven member of the internal combustion engine. A resilient member operatively connects the power transmitting members to each other and absorbs shock and kick-back forces generated by the driven member of the internal combustion engine.

## Claims

### Claim 1

A device for transmitting power from a power driving unit to a driven member of an internal combustion engine comprising:
(a) a first shaft-like power transmitting member having one end adapted to be detachably connected to said power driving unit,
(b) a second shaft-like power transmitting member in axial alignment with said first shaft-like power transmitting member with one end thereof adapted to be detachably connected to said driven member with the other ends of said first and second power transmitting members defining adjacent end portions,
(c) a reduced diameter externally threaded end portion on one of said adjacent end portions in threaded engagement with a threaded opening in the other of said adjacent end portions and defining a shoulder in position to move toward and abut the end of said other of said adjacent end portions and transfer power from said driving unit to said driven member in response to relative rotation of said adjacent end portions in one direction and to move away from the end of said other of said adjacent end portions in response to relative rotation of said adjacent end portions in the opposite direction, and
(d) resilient means operatively connecting said first and said second power transmitting members to each other to define a shock absorber between said power driving unit and said driven member.