Tone-arm elements

Details Tone-arm elements Tone-arm elements

1981-03-18

1982-12-28

Van Balen, William J.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Physical dimension specified

428408, 524431, B32B 500, B32B 900

Patent

active

043662056

ABSTRACT:
Elements for a tone-arm system such as arm pipes, head shells, cartridge bodies, and arm bases are fabricated from a kneaded mixture comprising polypropylene and flaky graphite powder. The mixture may further include polymethyl methacrylate and/or rubber-like material. Graphite flakes are preferably oriented parallel to the surface of the element. The elements show improved temperature resistance.

REFERENCES:
patent: 3923697 (1975-12-01), Ellis
patent: 4199628 (1980-04-01), Caines
patent: 4254184 (1981-03-01), Tsukagoshi et al.
patent: 4261580 (1981-04-01), Tsukagoshi et al.
patent: 4269416 (1981-05-01), Yoshino et al.
patent: 4282288 (1981-08-01), Yoshino et al.

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