Warning device for liquid level in dripping bottle

Details Warning device for liquid level in dripping bottle Warning device for liquid level in dripping bottle

1989-10-23

1991-04-30

Orsino, Joseph A.

Communications: electrical

Condition responsive indicating system

Specific condition

340619, 128DIG13, 73293, G08B 2100

Patent

active

050122274

ABSTRACT:
It is a warning device for a given liquid level in any dripping bottle; the device is furnished with a photo-electronic sensor, which can, through a detecting hole, sense the liquid level of a dripping bottle, and then sends a signal to a control circuit to drive a buzzer to generate a sound signal, whereby the nurse or the like is to be reminded that the liquid will be used up soon.

REFERENCES:
patent: 3588859 (1969-04-01), Petree
patent: 3939360 (1976-02-01), Jackson
patent: 4014010 (1977-03-01), Jinotti
patent: 4378014 (1983-03-01), Elkow
patent: 4749988 (1988-06-01), Berman et al.
patent: 4788444 (1988-11-01), Williams

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