Structure of a rim hoop for positioning
US6552253B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Dec 11, 2001 |
| Grant date | Apr 22, 2003 |
| Priority date | — |
| Expiry date | Dec 11, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10D13/28
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
An improved structure of a rim hoop for positioning is disclosed. An improved structure of a rim hoop for positioning having a drum bell, a drum hoop for positioning a drum head bolts, and rim hoop and lug, characterized in that the lug is an arch-shaped structure including a straight shaft rod and a seat rod at the ends thereof, the lug is positioned at one side of the drum bell, the rim hoop is mounted onto the middle section of the shaft rod by means of an elastic circular pad such that the rim hoop and the lug are directly connected to the external ring surface of the drum bell, facilitating the drum bell to position the drum hoop with bolts fastening onto the lug.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.