Portable softball pitching mound
US4561653A · kind A · utility
Inventor
Key dates
| Filing date | Jun 13, 1984 |
| Grant date | Dec 31, 1985 |
| Priority date | — |
| Expiry date | Jun 13, 2004 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B2102/182
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
The portable softball pitching mound of the present invention comprises a Fiberglas shell member having forward and rearward ends and opposite side portions. A pitching rubber is detachably mounted upon the upper surface of the shell member. The upper surface area of the shell member behind the pitching rubber is substantially flat and coplanar with the upper surface of the rubber. The area of the shell immediately adjacent to the forward edge of the rubber slopes forwardly and downwardly to form a push-off area terminating in a less inclined downwardly sloping resilient drag area extending to the forward edge of the shell member. The distance from the forward edge of the pitching rubber to the forward edge of the shell member is less than the length of a pitcher's stride. The shell is constructed of reinforced Fiberglas and the upper surface is covered with a layer of artificial turf.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.