A bass drum spinner mechanism was first patented in 1958. www.uspto.gov #2,854,880
The idea is old, but the Dynasty bass drum spinner is an improved design over previous mechanisms. It was used first by the Chicago Bulls Stampede last Fall, then NorthCoast this past Spring, now Blue Devils. And it's coming soon to a high school, college, drum corps, indoor line, parade corps, Brazilian band, pipe band, and bass line near you.
If anyone has a question or comment about the Dynasty bass spinner, you can email me at hallerberg@gmail.com