Retraction alarm for exterior television antenna or RV antenna

Details Retraction alarm for exterior television antenna or RV antenna Retraction alarm for exterior television antenna or RV antenna

1986-08-04

1988-12-27

Sikes, William L.

Communications: radio wave antennas

Antennas

With means for moving directive antenna for scanning,...

343882, 343894, H01Q 300

Patent

active

047943998

ABSTRACT:
An alarm device for signaling the need to retract an exterior television antenna mounted to a recreational vehicle or motor home. The device includes a switch capable of signaling a projecting orientation of the TV antenna, as opposed to a retracted position of the antenna against the vehicle. The switch is coupled to the antenna by means of a bracket or brace which is used to control the specific orientation which triggers operation of the switch. An alarm is coupled to the switch and is responsive to the detected condition of an extended antenna to thereby generate a warning for a driver of the vehicle. The alarm is coupled in series with the switch, a power source and the ignition system of the vehicle. When the driver attempts to start the vehicle, the alarm device checks the condition of the antenna and alerts the driver if the antenna is not in the safe, retracted position.

REFERENCES:
patent: 2214685 (1940-09-01), Stone, Jr.
patent: 2659075 (1953-10-01), Collins et al.
patent: 3665477 (1972-05-01), Budrow et al.
patent: 3739387 (1973-06-01), Budrow et al.
patent: 3878957 (1975-04-01), Rempel
patent: 4101897 (1978-07-01), Morrison
patent: 4254419 (1981-03-01), Noddin
patent: 4572934 (1986-02-01), Johnston

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