Motorized automobile antenna control device

Details Motorized automobile antenna control device Motorized automobile antenna control device

1990-12-11

1992-03-17

Ro, Bentsu

Electricity: motive power systems

Automatic and/or with time-delay means

Movement, position, or limit-of-travel

318434, 318266, H01Q 110

Patent

active

050971883

ABSTRACT:
A control device which raises and lowers a motorized automobile antenna by means of an antenna up-down switch, the power supply for a motor which drives the antenna being cut off when the antenna has reached its highest or lowest point and such a position of the antenna is detected. By supplying a voltage from the automobile ignition key to a control circuit when the antenna up-down switch is in a neutral position, the antenna is operated by the antenna up-down switch only when the automobile ignition key is on, and when the automobile ignition key is switched off, the antenna is retracted by a trigger which is actuated when the input of the control circuit reaches zero.

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patent: 4338552 (1982-07-01), Pilz et al.
patent: 4414551 (1983-11-01), Tadauchi et al.
patent: 4514670 (1985-04-01), Fassel et al.
patent: 4575662 (1986-03-01), Lehnhoff
patent: 4649398 (1987-03-01), Yamamoto et al.
patent: 4672278 (1987-06-01), Ingraham et al.
patent: 4725765 (1988-02-01), Miller
patent: 4730152 (1988-03-01), Foust et al.
patent: 4733101 (1988-03-01), Graham et al.
patent: 4749924 (1988-06-01), Watanabe et al.
patent: 4864322 (1989-09-01), Yamamoto et al.

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