Drumhead tightening device, support device for drum including the drumhead tightening device, and drum
US7825318B2 · kind B2 · utility
5Cited by
8References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 12, 2008 |
| Grant date | Nov 2, 2010 |
| Priority date | — |
| Expiry date | Nov 29, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10D13/16
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
Drumhead tightening devices include lugs secured to a shell of a drum, lug bolts screwed to the lugs, hooks, which are engaged with a hoop fitted to an open end of the shell, and retaining members for retaining the position of the hooks with respect to the lug bolts. Each retaining member is mounted on one of the lug bolts in a state where the associated hook is arranged between a head portion of the lug bolt and the retaining member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.