Method and apparatus for tone arm magnetic stabilization and...

Details Method and apparatus for tone arm magnetic stabilization and... Method and apparatus for tone arm magnetic stabilization and...

2008-06-03

2008-06-03

Korzuch, William (Department: 2627)

Dynamic information storage or retrieval

Dynamic mechanism subsystem

Specified detail of transducer assembly support structure

Reexamination Certificate

active

07382713

ABSTRACT:
A unipivot tone arm assembly wherein the tone arm is supported by a single point is balanced in such a way as to have neutral stability providing constant tracking force over the peaks and valleys of phonograph records. Lateral stability lacking in a neutral balanced unipivot tone arm is provided by magnetic coupling between magnets on the tone arm housing assembly and a freely rotating platform. Anti-skate is accomplished through a pulley mechanism between the rotating platform and the tone arm gantry, with the pulley on a counterweighted rotating pivot arm.

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Graham Engineering Inc., “The Phantom”, URL http:////www.graham-engineering.com/—wsn/page2.html, published Sep. 28, 2004.

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