Ball launcher
US10287844B2 · kind B2 · utility
5Cited by
2References
27Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 14, 2017 |
| Grant date | May 14, 2019 |
| Priority date | — |
| Expiry date | Jun 27, 2037 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B34/06
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A ball launcher for launching a plurality of balls into a well, including an endless conveyor belt, the conveyor belt forming a plurality of ball retainers, each operable to contain one of the plurality of balls, a drive motor for selectively driving the conveyor belt, and a brake for braking the conveyor belt.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.