Racquetball racquet having increased stiffness at tip
US5470061A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 28, 1994 |
| Grant date | Nov 28, 1995 |
| Priority date | — |
| Expiry date | Jun 28, 2014 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B2049/0212
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
Racquetball racquet having a frame forming a head and a handle characterized by a side profile comprising two intersecting arcs having different radii of curvature and intersecting at a point of intersection which is in the region of but above the throat of the racquet. These two arcs define two oppositely tapered frame segments. The first frame segment extends from the tip of the racquet, where the frame height is at a maximum, to the point of intersection, where the frame height is at a minimum. The second frame segment extends from the handle, at or below the throat, to the point of intersection. The arc defining the first segment is of much larger radius of curvature than the arc defining the second segment. This affords a maximum frame cross-sectional area at the tip and a smaller frame cross-sectional area in a flex zone which includes the point of intersection. The resulting racquet has a greater stiffness moment at the tip and a smaller stiffness in the flex zone which may afford more power and greater control.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.