Spring type apparatus for projecting balls
US4345577A · kind A · utility
Inventor
Key dates
| Filing date | Sep 28, 1979 |
| Grant date | Aug 24, 1982 |
| Priority date | — |
| Expiry date | Sep 28, 1999 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B69/408
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
Apparatus for projecting balls, having an impact device (10) supported in a frame (11) and provided to convey to a ball an impulse in a direction of projection (Z) from a position in the frame. The frame (11) is supported in a frame work (30) for movement around a vertical axis (X) and a horizontal axis (Y). First and second motor (M1) and (M2) respectively, are provided to rotate the frame (11) around its vertical axis (X) and its horizontal axis (Y) respectively. The rotation being a two way movement over adjustable angular arcs. A controller (27, 27', 28, 28', 45, 46) is arranged for controlling the movement of the frame (11) around the vertical axis (X) and the horizontal axis (Y). The controller comprises limit switches (27, 27', 28, 28') which are manually displacable, a control system (46) having adjustable limiter (A-F) for limiting the movement of the frame (11), or an adjuster (45) for adjusting a sequence of predetermined directions for the frame (11).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.