Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1978-11-15
1981-03-10
Caldwell, Sr., John W.
Communications: electrical
Condition responsive indicating system
Specific condition
200 84R, 340693, 390327, G08B 2100
Patent
active
042557470
ABSTRACT:
A battery operated sump well fluid level warning device is provided which is secured to the discharge line extending out of the sump well from a submersible sump pump. A first housing having a battery power source and a float actuated switch disposed therein is secured to the discharge line. A second housing having a light and an audible alarm secured thereto is detachably connected to the first housing by a pair of prongs adapted to be received in a socket on the first housing and thereby provide an electrical connection between the power source and float switch circuit in the first housing and the signal light and audible alarm of the second housing. Alternatively, an extension cord may be used to connect the first housing to the second housing so that the second housing can be remotely positioned from the first housing, thus enabling the warning signals to be better heard and seen.
REFERENCES:
patent: 1288855 (1918-12-01), Faber
patent: 2153421 (1939-04-01), Jessup
patent: 2905783 (1959-09-01), Johnson, Jr.
patent: 2907994 (1959-10-01), Harke
patent: 3264627 (1966-08-01), Austin
patent: 3310795 (1967-03-01), David
patent: 3399399 (1968-08-01), Apfelbaum
patent: 4126857 (1978-11-01), Lancia et al.
patent: 4137527 (1979-01-01), Tennenhouse et al.
Caldwell Sr. John W.
Myer Daniel
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