Electrical interlock

Details Electrical interlock Electrical interlock

1980-10-03

1983-01-25

Miller, J. D.

Electricity: electrical systems and devices

Control circuits for electromagnetic devices

For relays or solenoids

455117, 455129, 200 5109, H01R 1344

Patent

active

043706940

ABSTRACT:
A radio transmitter is protected against the possibility of initiating transmission without the radio being connected to a load by having a switch that controls a push-to-talk key line that is only enabled when the antenna load is connected to the transmitter.

REFERENCES:
patent: 749633 (1904-01-01), Seeley
patent: 3182260 (1965-05-01), Heaton-Armstrong
patent: 3192518 (1965-06-01), Sliman
patent: 3782256 (1974-01-01), Quinn
patent: 4002397 (1977-01-01), Wang et al.
patent: 4044208 (1977-08-01), McDonald et al.
patent: 4081750 (1978-03-01), Herr et al.
patent: 4106025 (1978-08-01), Katz
patent: 4127855 (1978-11-01), Toner
patent: 4137521 (1979-01-01), Martinez
patent: 4156265 (1979-05-01), Rose

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