Head drum ground system for use in a video cassette recorder

Details Head drum ground system for use in a video cassette recorder Head drum ground system for use in a video cassette recorder

1994-08-22

1996-01-23

Levy, Stuart S.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

360 84, G11B 552, G11B 5027

Patent

active

054869668

ABSTRACT:
A head drum ground system for use with a VCR comprises a PCB having a grounding terminal; and an electrical coupler electrically connected to the grounding terminal of the PCB at its opposite ends and resiliently contacted with a lower portion of a rotating shaft of a head drum. In accordance with the present invention, the electrical coupler is utilized so that static electricity generated from a rotating drum be transmitted to the grounding terminal of the PCB board through a rotating shaft.

REFERENCES:
patent: 4031558 (1975-08-01), Kusaka
patent: 4623944 (1986-11-01), Yamashita
patent: 4654738 (1987-03-01), Kato et al.
patent: 5113298 (1992-05-01), Fukushima et al.
patent: 5119257 (1992-06-01), Itou et al.
patent: 5151839 (1992-09-01), Ota
patent: 5392180 (1995-02-01), Hasegawa

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