Drum head with sound attenuating center coating
US6518490B2 · kind B2 · utility
19Cited by
13References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 23, 2001 |
| Grant date | Feb 11, 2003 |
| Priority date | — |
| Expiry date | Jan 23, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10D13/20
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A sound attenuating drum head that has a support ring, a synthetic membrane carried by the ring, a localized thin coating on the membrane, and acting to attenuate vibration of the head, when struck, that coating confined on a mid-region of the head.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.