Battery voltage drop alarm device for a battery forklift truck

Details Battery voltage drop alarm device for a battery forklift truck Battery voltage drop alarm device for a battery forklift truck

1983-03-18

1985-01-08

Rowland, James L.

Communications: electrical

Condition responsive indicating system

Specific condition

320 40, 320 48, G08B 2100, G01R 3136, H02J 700

Patent

active

044929552

ABSTRACT:
A battery voltage drop alarm circuit comprises a battery voltage drop detecting circuit, an alarm circuit, and an alarm cut off circuit. The battery voltage drop detecting circuit outputs an alarm instruction signal to the alarm circuit when the battery voltage drops to less than a predetermined value, then the alarm circuit generates an alarm sound. The alarm cut off circuit generates an alarm operation cut off signal to the alarm circuit to cut off the alarm operation thereof when the battery forklift performs the auxiliary work.

REFERENCES:
patent: 3475061 (1969-10-01), Steinkamp et al.
patent: 3522481 (1970-08-01), Terzic
patent: 3568175 (1971-03-01), Schwein et al.
patent: 3576488 (1971-04-01), Zug et al.
patent: 3852732 (1974-12-01), Yorksie et al.
patent: 3934188 (1976-01-01), York
patent: 3997888 (1976-12-01), Kremer
patent: 4258306 (1981-03-01), Bourke et al.

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