US 12,236,982 B2
Resonant suppressor for record player tone arm
Louis Desjardins, Montreal (CA)
Assigned to KRONOS AUDIO PRODUCTS INC., Montreal (CA)
Filed by Kronos Audio Products Inc., Montreal (CA)
Filed on Jan. 25, 2023, as Appl. No. 18/101,355.
Claims priority of provisional application 63/303,362, filed on Jan. 26, 2022.
Prior Publication US 2023/0238021 A1, Jul. 27, 2023
Int. Cl. G11B 3/31 (2006.01)
CPC G11B 3/31 (2013.01) 17 Claims
OG exemplary drawing
 
1. A tone arm for a record player, the tone arm comprising:
an anterior arm section adapted for mounting a pickup cartridge thereto;
a posterior arm section adapted for mounting the tone arm to the record player, the posterior arm section comprising an open chamber; and
a mounting component mounted in the chamber, the mounting component comprising i) a first contact surface for butting against the anterior arm section and ii) a second contact surface butting against the posterior arm section, whereby the mounting component secures the anterior arm section and the posterior arm section to each other,
the mounting component comprising a plurality of mounting-component sections having a different wall structure selected from the group of wall structures consisting of:
a) a wall structure consisting of crisscrossed radially extending walls;
b) a wall structure comprising, in longitudinal sequence, a first channel that does not butt against a first arm section among the anterior arm section and the posterior arm section, a radial ridge that butts against the first arm section, and a second channel that does not butt against the first arm section; and
c) a wall structure providing a first face that butts against the anterior arm section and a second face that butts against the posterior arm section, the wall structure comprising a plurality of hollow conduits extending longitudinally between the first face and the second face,
wherein each one of the mounting-component sections is made of a different one of the wall structures whereby each one of the mounting-component sections is transmitting longitudinally sound waves differently.