Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1999-06-23
2000-11-14
Lefkowitz, Edward
Communications: electrical
Condition responsive indicating system
Specific condition
340618, 340624, 73290R, 73305, G08B 2100
Patent
active
061476145
ABSTRACT:
A bathtub water level warning device for activating an audible and/or visible warning indicator when the water level in a bathtub approximately reaches a predetermined level, comprising a watertight case including a float element, a tubular stem element and a tubular pivot element. The alarm device is an independent device which floats free of the bathtub upon the bathtub reaching a filled condition, therefore allowing removal or inclusion of the device in a bathtub as desired by a user, such as during filling only. The alarm device includes a power source, a gravity switch, and an audible and/or visible warning indicator is internally mounted in the alarm device. Gravity causes the switch to close when the alarm device is in a substantially vertical orientation. An electrical circuit connecting the power source, the gravity switch, and the warning indicator activates the warning indicator when the gravity switch is in a closed position thereby alerting the user that the predetermined water level has been approximately reached.
REFERENCES:
patent: 4080985 (1978-03-01), Eagle
patent: 4258444 (1981-03-01), Orszullok
patent: 5661462 (1997-08-01), Shrewsbury-Gee
patent: 5894611 (1999-04-01), Toro
patent: 6008728 (1999-12-01), Wesey
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