Reproducing stylus and method of making same

Details Reproducing stylus and method of making same Reproducing stylus and method of making same

1983-02-02

1985-06-04

Stephan, Steven L.

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Mechanical modification or sensing of storage medium

51327, 51281R, 76DIG12, G11B 344, B24B 100

Patent

active

045218773

ABSTRACT:
A reproducing stylus for a record having a sound groove, said stylus formed by removing front and back portions of its contact area with the sound groove to obtain an edge line portion having an orientation perpendicular to the direction of record travel and a width d where the effective radius of curvature of the stylus tip is approximately 1/2 d. The edge line portion is formed by reciprocally moving and grinding the tip on a grinding groove.

REFERENCES:
patent: 1914658 (1929-10-01), Funk
patent: 3292936 (1964-06-01), Grado
patent: 3534968 (1970-10-01), Puleston
patent: 3774918 (1973-11-01), Shibata
patent: 3871664 (1975-03-01), Hughes
patent: 4104832 (1978-08-01), Keizer
patent: 4165560 (1979-08-01), Matsumoto
patent: 4416005 (1983-11-01), van den Hul

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