| |
 |
Matt Hackworth Patents |
|
Inventor: Hackworth; Matt
Address: Tulsa, OK
No. of patents: 2
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 6181647 |
Vertical jump measuring device |
January 30, 2001 |
| A method to measure height of a vertical jump of a jumper. At least one switch is deactivated by the jumper stepping thereon. The switch is initially activated by the jumper jumping upward therefrom and thereafter deactivated upon return. A time period is measured while the switch is |
| 5838638 |
Portable verticle jump measuring device |
November 17, 1998 |
| A method to measure height of a vertical jump of a jumper. At least one switch is deactivated by the jumper stepping thereon. The switch is initially activated by the jumper jumping upward therefrom and thereafter deactivated upon return. A time period is measured while the switch is |
|
|
|