# US 4,391,445 A · Logical skill toy

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- Number: US 4,391,445 A
- Document ID: US4391445A
- Status: Granted
- Kind: A
- Application number: 06/235,528
- Filed: 1981-02-18
- Granted: 1983-07-05
- Earliest claimed: 1980-04-03
- Inventors: Gabor Vizelyi
- Web page: https://patentgrep.com/patent/US4391445A

## CPC

- A63F 9/0876: {Bent wire or cord puzzles}
- A63F 2250/122: Closed loop
- A63F: CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR

## Abstract

There is disclosed a logical toy in which a series of rigid hooks are fixed by legs about the perimeter of a disc. The legs are connected to the disc so that the annular closed part of each hook except the first in the series encloses the legs of the preceding adjacent hook to form a trap with said hook. A closed cord is arranged around the legs of one of the hooks. The object of the toy is to move the cord through the series of hooks.

## Claims

### Claim 1

A logical toy comprising a series of hooks with legs fixed about the perimeter of a disc, the legs of each of said hooks being fixed and connected to said disc so that the annular closed part of each hook except the first in the series encloses the legs of the preceding hook adjacent to it to thereby form a trap with said hook; and a closed cord arranged around the legs of one of said hooks.

### Claim 2 (depends on 1)

The toy defined in claim 1, wherein said hooks are comprised of generally cylindrical metal wires placed in such a manner that a gap is formed between adjacent hooks, said gap being larger than the diameter of said cord to allow it to pass therethrough.

### Claim 3 (depends on 1, 2)

The toy defined in claims 1 or 2 wherein there are an odd number of hooks.

### Claim 4 (depends on 3)

The toy defined in claim 3, wherein the number of hooks is 3, 5, or 7.