Racquet having articulating grommet assemblies
US7887444B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 18, 2009 |
| Grant date | Feb 15, 2011 |
| Priority date | — |
| Expiry date | Dec 18, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B2209/02
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A sports racquet including a frame, at least one grommet assembly. The frame includes a head portion coupled to a handle portion. The head portion includes a hoop having inner and outer peripheral walls. At least a first set of concave recesses and channels are formed into the outer peripheral wall. The hoop includes first, second and third groups of string openings. The second and third groups of string openings are aligned with the first set of concave recesses. The second group of string openings extends through the outer peripheral wall at the first set of concave recesses. The grommet assembly engages the outer peripheral wall. The grommet assembly includes at least three pivotable elements interconnected by torque transmitting arms, each pivotable element including a string passage. The pivotable elements and the torque transmitting arms are pivotable about an axis parallel to a string bed plane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.