Bowling ball insert providing finger tip gripping
US7220186B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Jan 10, 2005 |
| Grant date | May 22, 2007 |
| Priority date | — |
| Expiry date | Jan 23, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B37/0002
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A finger grip system is provided for obtaining maximum rotation and a resulting pronounced hook when releasing a bowling ball. The system includes drilled holes for receiving a bowler's middle finger, ring finger and thumb, the holes being spaced such that only fingertips may be inserted into the holes. Inserts are placed in the holes, the inserts having a resilient frictional character, and defined therein lips at the corner of a bottom surface and a wall of a central aperture. The inserts are sized to locate the lips such that dominant upward force applied by the fingers and thumb results from contact of finger and thumb tips rather than other parts of the fingers. Force applied in this manner results in increased rotation of bowling balls.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.