Compact disc damper and method

Details Compact disc damper and method Compact disc damper and method

1986-07-03

1988-02-16

Stephan, Steven L.

Dynamic information storage or retrieval

Storage medium structure

Layered

369288, 369292, G11B 726, G11B 2300, G11B 2504

Patent

active

047260076

ABSTRACT:
A damper disc made of material having significant loss to vibration and low sound propagation velocity is arranged to be laid over a CD disc and in good contact with its upper surface to suppress and dissipate vibrational energy from the CD disc. The damper is also light opaque and light absorptive. Specific suitable materials are disclosed as well as an embodiment suitable for making the damper available as an after market accessory, and integral part of the CD player, or as an integral part of the CD disc.

REFERENCES:
patent: 778492 (1904-12-01), Johnson
patent: 3997174 (1976-12-01), Kawashima
patent: 4012048 (1977-03-01), Hawkins
patent: 4218065 (1980-08-01), van der Hoek et al.
patent: 4260161 (1981-04-01), Frank
patent: 4332839 (1982-03-01), Yamashita et al.
patent: 4435801 (1984-03-01), Levin
patent: 4499477 (1985-02-01), Davies et al.

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