# US 4,399,723 A · Compact combination tool set

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- Number: US 4,399,723 A
- Document ID: US4399723A
- Status: Granted
- Kind: A
- Application number: 06/190,714
- Filed: 1980-09-25
- Granted: 1983-08-23
- Earliest claimed: 1979-07-11
- Inventors: Gilles Marleau
- Web page: https://patentgrep.com/patent/US4399723A

## CPC

- B25G 1/085: {for screwdrivers, wrenches or spanners}
- B25G: HANDLES FOR HAND IMPLEMENTS (attaching the blades or the like to handles of hand tools for soil working A01B1/22; handles of hand implements for harvesting A01D1/14; handles integral with brushware A46B)

## Abstract

A compact combination tool set providing a complete set of tools such as screw drivers, wrenches, knives, utensils or combinations of such devices is provided. The set comprises a plurality of inter-fitting tool segments, each tool segment having a tool or connecting shank projecting from one end thereof and a recess at the other end thereof adapted to receive a tool or shank projecting from one end of a second tool segment, said recesses and said projecting tools including portions which are noncircular in cross-section and which are adapted to be telescopically and frictionally inter-engaged so as to prevent relative rotation thereof, whereby a plurality of tool segments may be selectively inter-fitted for compact storage, and selectively separated for use. The tool segments in one embodiment have shanks which are of the same length and cross-section whereby tool segments of different sizes are selectively interengageable with each other or with an associated handle means.

## Claims

### Claim 1

A compact combination tool set comprising:
a plurality of inter-fitting tool segments;
each tool segment having a tool projecting from one end thereof and a recess at the other end thereof adapted to receive a tool projecting from one end of a second tool segment;
said recesses and said projecting tools including portions which are non-circular in cross-section and which are adapted to be telescopically and frictionally inter-engaged so as to prevent relative rotation thereof;
each of said projecting tools being of the same length and cross-section and each of said recesses being of a length sufficient to fully receive said tools therein;
whereby a plurality of tool segments may be selectively inter-fitted for compact storage, and selectively separated for use in any one of said recesses.

### Claim 2 (depends on 1)

A compact combination tool set according to claim 1, each of said tool segment recesses being configured as a wrench socket at the other ends thereof.

### Claim 3

A compact combination tool set comprising:
a plurality of inter-fitting tool segments;
each tool segment having a tool projecting from one end thereof and a recess at the other end thereof adapted to receive a tool projecting from one end of a second tool segment;
said recess being configured as a wrench socket at the outer end thereof;
said recesses and said projecting tools including portions which are non-circular in cross-section and which are adapted to be telescopically and frictionally inter-engaged so as to prevent relative rotation thereof.
each of said projecting tools being of the same length and cross-section and each of said recesses being of a length sufficient to fully receive said tools therein;
whereby a plurality of tool segments may be selectively inter-fitted for compact storage, and one tool segment selectively separated therefrom, and inter-engaged with said other tool segments at one end of said plurality of inter-fitted tool segments, for use thereof;
each of said tool segments having a transverse bore therein adapted to receive a shank of a tool projecting from any one of a second tool segment whereby said second tool segment provides a handle for the application of torque thereto.

### Claim 4 (depends on 1, 3)

A compact combination tool set according to claims 1 or 3, the exterior surface of each tool segment being roughened to reduce slippage.