US 12,249,301 B2
Controlled density-gradient timpani percussion mallets
Jason Haaheim, New York, NY (US)
Appl. No. 16/625,850
Filed by Jason Haaheim, New York, NY (US)
PCT Filed Jun. 26, 2018, PCT No. PCT/US2018/039516
§ 371(c)(1), (2) Date Dec. 23, 2019,
PCT Pub. No. WO2019/005804, PCT Pub. Date Jan. 3, 2019.
Claims priority of provisional application 62/525,573, filed on Jun. 27, 2017.
Prior Publication US 2020/0126523 A1, Apr. 23, 2020
Int. Cl. G10D 13/12 (2020.01)
CPC G10D 13/12 (2020.02) 18 Claims
OG exemplary drawing
 
1. A timpani percussion mallet comprising:
a shaft of the timpani percussion mallet, the shaft comprising a carbon fiber tube, the carbon fiber tube having a first open end, a second open end, and an outer wall extending therebetween; and
contained within the outer wall of the carbon fiber tube, a plurality of solid materials including a first solid material and a second solid material, the first solid material having a first constant diameter and a first longitudinal linear density, the second solid material different from the first solid material, and the second solid material having a second constant diameter and a second longitudinal linear density different from the first longitudinal linear density, wherein
the first solid material and the second solid material are each non-movable within the carbon fiber tube,
the first solid material comprises a polymer foam component adhered to the outer wall of the carbon fiber tube,
the second solid material comprises a caulking material component adhered to the outer wall of the carbon fiber tube,
the first solid material extends to the first open end of the carbon fiber tube, and the second solid material extends to the second open end of the carbon fiber tube,
the first longitudinal linear density of the first solid material is constant along a longitudinal dimension of the carbon fiber tube at the first open end,
the second longitudinal linear density of the second solid material is constant along the longitudinal dimension of the carbon fiber tube at the second open end,
the first solid material and the second solid material each spanning an inner diameter of the carbon fiber tube,
wherein the position and length of each of the first solid material and the second solid material within the outer wall of the carbon fiber tube is selectively configured to control center of mass, moment of inertia, and vibration mitigation for the timpani percussion mallet.