Directional control system

Details Directional control system Directional control system

1980-02-29

1981-12-15

Weldon, Ulysses

Electricity: motive power systems

Motor-reversing

318256, 318290, 318293, 318139, H02P 100

Patent

active

043061800

ABSTRACT:
A circuit for controlling the drive direction of an electrically-driven vehicle, the circuit having a plurality of spring return input switches (20) each actuation of which changes the direction of the vehicle, via a flip-flop circuit (21), an amplifier (22), and a relay (13); the direction contactor coils (10, 11) of the vehicle being connected in alternative circuits through the contacts of the relay (13).

REFERENCES:
patent: 2098069 (1937-11-01), Stewart
patent: 2264993 (1941-12-01), McShane
patent: 2424859 (1947-07-01), Shoemaker
patent: 2543450 (1951-02-01), Feagin
patent: 2990505 (1961-06-01), Ketchledge
patent: 3305718 (1967-02-01), Waldron

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