Battery discharge indicator
AssigneeA-T-O Inc.
InventorsRaymond L. Knox, Charles D. Lindsay
Life of this patent
Estimating the term…
Abstract
A battery discharge indicator device for use on battery powered mining haulage vehicles is provided which automatically monitors the discharge condition of each of the battery supply sources provided on a mining haulage vehicle. The battery discharge indicator provides a continuously flashing lamp indication when any of the battery supply sources discharges to a predetermined level required to power the mining haulage vehicle to a charging station. A momentary flashing indication is further provided when the discharged battery source or sources are replaced with charged battery sources thereby indicating to the operator that the battery powered mining vehicle is ready for use.
Claims18
A battery charge condition indicator circuit for a plurality of battery supply sources for an electrically powered mining vehicle, comprising:
- (a) circuit means for automatically and separately monitoring the charge condition of said plurality of battery supply sources, said circuit means having a first monitoring operation for determining when any of said plurality of battery supply sources discharge to a predetermined discharge level and a second monitoring operation for determining when said plurality of battery supply sources are charged to a predetermined charge level;
- and
- (b) indicating circuit means including means responsive to said first monitoring operation to provide a continuously flashing indication and further including means responsive to said second monitoring operation to provide a momentary flashing indication.
A battery discharge indicator circuit for monitoring the discharge condition of a plurality of battery supply sources for an electrically powered mining vehicle, comprising:
- (a) means for automatically and separately monitoring the discharge condition of each of said plurality of battery supply sources for an electrically powered mining vehicle;
- (b) means for indicating when each of said plurality of battery supply sources discharge to a predetermined discharge level and remain in such discharge condition for a predetermined time period;
- (c) voltage sensor circuit means connected to each of said plurality of battery supply sources;
- (d) each of said voltage sensor circuit means comprising an operational amplifier configured to be used as a voltage comparator;
- (e) optical link means connected to each of said voltage sensor circuit means thereby providing electrical isolation between each of said voltage sensor circuit means;
- (f) indicator circuit means actuated to provide a continuously flashing indication whenever each of said plurality of battery supply sources discharge to a predetermined discharge level and remain in such discharge condition for a predetermined time period;
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- (g) timer means connected between said optical link means and said indicator circuit means which timer means determines the said predetermined time period.
Dependencies are inferred from the claim text.