Electrical transmission or interconnection systems – Vehicle mounted systems – Automobile
Patent
1985-06-12
1988-02-09
Shoop, Jr., William M.
Electrical transmission or interconnection systems
Vehicle mounted systems
Automobile
361 92, 361194, 320 40, H02I 320
Patent
active
047243325
ABSTRACT:
The system includes a battery state-of-charge monitoring circuit which is operable to produce a signal change when there is a change in the battery charge from an acceptable charge to a substantially reduced charge. The signal change from the monitor is connected to control a lock-out relay to disable a control circuit for a load controller for battery powered equipment which is to be locked out. A current detecting device is connected to detect the presence of current in the control circuit of the controller and is connected to hold off the lock-out operation of the lock-out relay while current is flowing in the control circuit to thereby assure that the lock-out of the load occurs after a normal interruption of the load control circuit.
REFERENCES:
patent: 3474296 (1967-04-01), Rickey
patent: 3522481 (1968-03-01), Terzic
patent: 3656045 (1972-04-01), Frezzolini et al.
patent: 3721866 (1973-03-01), McIntosh
patent: 4005344 (1977-01-01), Gaind et al.
patent: 4088940 (1978-05-01), Ciarniello et al.
patent: 4132942 (1979-01-01), Yamamoto
patent: 4137557 (1979-01-01), Ciarniello et al.
Curtis Instruments, Inc.
Logan Sharon D.
Shoop Jr. William M.
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