# US 5,707,308 A · Puck

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- Number: US 5,707,308 A
- Document ID: US5707308A
- Status: Granted
- Kind: A
- Application number: 08/665,746
- Filed: 1996-06-18
- Granted: 1998-01-13
- Earliest claimed: 1996-06-18
- Inventors: Tai-ping Liu
- Web page: https://patentgrep.com/patent/US5707308A

## CPC

- A63B 67/14: Curling stone; Shuffleboard; Similar sliding games
- A63B: APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT (apparatus for passive exercising, massage A61H)

## Abstract

A puck includes a top side, a bottom side and a peripheral surface, the top side having a plurality of first vent holes defined therein, the bottom side having a plurality of second vent holes defined therein and the peripheral surface having a plurality of third vent holes defined therein, a first passage defined through the puck and communicating with each pair of the closest first vent hole and third vent hole, a second passage defined through the puck and communicating with each pair of the closest second vent hole and the third vent hole such that when the puck slides on a surface, the first passages and the second passages guide air to flow therethrough so as to let the puck slide smoothly and in a straight direction.

## Claims

### Claim 1

A puck having a top side, a bottom side and a peripheral surface, at least one first vent hole defined in said top side, at least one second vent hole defined in said bottom side and at least one third vent hole defined in said peripheral surface, a first passage defined through said puck and communicating with said first vent hole and said third vent hole, a second passage defined through said puck and communicating with said second vent hole and said third vent hole, said first passage and said second passage being separated in said puck by a cone formed between said first passage and said second passage.

### Claim 2 (depends on 1)

The puck as claimed in claim 1 wherein said top side and said bottom side of said puck each have at least three bosses extending therefrom.

### Claim 3 (depends on 1)

The puck as claimed in claim 1 wherein said puck has a first ring disposed to said top side thereof and a second ring disposed to said bottom side thereof, each of said first ring and said second ring having at least three protrusions extending therefrom.

### Claim 4 (depends on 3)

The puck as claimed in claim 3 wherein each of said top side and said bottom side of said puck has a first annular groove and a second annular groove defined therein wherein said first annular groove has a diameter smaller than that of said second annular groove, each of said rings having an outer peripheral flange and an inner peripheral flange such that said inner peripheral flange is inserted into said first annular groove and said outer peripheral flange is inserted into said second annular groove.

### Claim 5

A puck having a top side, a bottom side and a peripheral surface, at least one first vent hole defined in said bottom side and at least one second vent hole defined in said peripheral surface, a first passage defined through said puck and communicating with said first vent hole and said second vent hole, said top side and said bottom side of said puck each having at least three bosses extending therefrom, a first ring disposed to said top side and a second ring disposed to said bottom side of said puck, each of said first ring and said second ring having at least three protrusions extending therefrom.

### Claim 6 (depends on 5)

The puck as claimed in claim 5 wherein each of said top side and said bottom side of said puck has a first annular groove and a second annular groove defined therein wherein said first annular groove has a diameter smaller than that of said second annular groove, each of said rings having an outer peripheral flange and an inner peripheral flange such that said inner peripheral flange is inserted into said first annular groove and said outer peripheral flange is inserted into said second annular groove.