Ball throwing machine
US6739325B1 · kind B1 · utility
18Cited by
8References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 7, 2000 |
| Grant date | May 25, 2004 |
| Priority date | — |
| Expiry date | Oct 27, 2020 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF41B4/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A ball throwing machine includes a frame mounting a pair of rotary wheels provided with substantially identical pneumatic tires preferably made of non-marking rubber or synthetic elastomer and each having a diameter ranging between about 6-14 inches (15-35 cm); a wall depth ranging between about 1-4 inches (2.5-10 cm); and a footprint ranging between about 0.25-6 inches (0.6-15 cm). The frame mounts a pair of electric motors each associated with one of the rotary wheels for rotating the latter, and the frame may support a battery source of electric potential for the electric motors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.