Injection molded synthetic drumsticks with microcellular structure

Abstract

Synthetic drumsticks for musical purposes and methods for making them. The present drumsticks are characterized by having a microcellular foamed structure. The preferred method comprises injection molding of thermoplastic materials that are saturated with gasses, particularly in their supercritical phase. The products of the injection molding process are drumsticks formed to final dimensions and ready for use. The foamed materials are preferably made from filled resins. The formation of micron-scale gas cells during the molding process yields formed drumsticks that are similar to woods or better, in feel and durability. The products of the invention further have advantages of durability, recycleability, exact matching of properties (reproducibility of manufacture), improved shock absorption, and “livelier” rebound from the drumhead thus preventing forearm fatigue in the user. The present drumsticks also provide a better/sharper “ring”, than wooden drumsticks, when used on cymbals. By adding coloring agents during manufacture the drumsticks can be made in any color and can also be made to glow in the dark.

Dependencies are inferred from the claim text.