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US4255747A Expired / Lapsed US ⏱️ 0.0 years remaining

Sump pump level warning device

Assignee: Individual
•
Filing: 1978-11-15
•
Granted: 1981-03-10
•
Expires: 1998-11-15
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Abstract

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.

Inventors

  • 👤 Roderick J. Bunia

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 21:02
CPC Classifications
G; G01; G01F; G01F23/00; G01F23/30; G01F23/56; G01F23/60; F; F04; F04D; F04D13/00; F04D13/02; F04D13/06; F04D13/068; G01F23/14; G01F23/18

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 294 words
A sump well fluid level indicator for a sump having a submersible discharge pump at the bottom of the sump well and a fluid discharge line extending upwardly out of the sump well from the pump, comprising: a housing secured to the discharge line, a float actuated switch disposed within said first housing, said switch including a conductor element secured to the uppermost portion of a nonconducting elongated shaft extending outwardly from the bottom of said first housing and having a buoyant member secured to the lower end of said shaft externally of said housing, electric circuit means for conducting electrical power through said switch, including a battery disposed within said first housing directly above said conductor element whereby when said float switch is activated, said conductor element contacts a single terminal of said battery, whereas when said float switch is deactivated, said conductor element is spaced apart from said single battery terminal, a second housing, an alarm secured to said second housing, a signal light secured to said second housing, first selectively engageable connector means for detachably connecting said second housing to said first housing, and at the same time electrically connecting said electric circuit means to said alarm and said signal light, whereby when said switch is closed said alarm and signal light are activated, second selectively engagable connector means for detachably connecting said second housing to a support structure remotely positioned with respect to said first housing when said first connector means is disengaged, and third selectively engagable connector means for electrically connecting said electric circuit means to said alarm and signal light when said first connector means is disengaged, wherein said buoyant member remains disposed externally of said first housing when said switch is in its open and closed positions.
Claim 2
Dependent Claim 294 words
A sump well fluid level indicator for a sump having a submersible discharge pump at the bottom of the sump well and a fluid discharge line extending upwardly out of the sump well from the pump, comprising: a housing secured to the discharge line, a float actuated switch disposed within said first housing, said switch including a conductor element secured to the uppermost portion of a nonconducting elongated shaft extending outwardly from the bottom of said first housing and having a buoyant member secured to the lower end of said shaft externally of said housing, electric circuit means for conducting electrical power through said switch, including a battery disposed within said first housing directly above said conductor element whereby when said float switch is activated, said conductor element contacts a single terminal of said battery, whereas when said float switch is deactivated, said conductor element is spaced apart from said single battery terminal, a second housing, an alarm secured to said second housing, a signal light secured to said second housing, first selectively engageable connector means for detachably connecting said second housing to said first housing, and at the same time electrically connecting said electric circuit means to said alarm and said signal light, whereby when said switch is closed said alarm and signal light are activated, second selectively engagable connector means for detachably connecting said second housing to a support structure remotely positioned with respect to said first housing when said first connector means is disengaged, and third selectively engagable connector means for electrically connecting said electric circuit means to said alarm and signal light when said first connector means is disengaged, wherein said buoyant member remains disposed externally of said first housing when said switch is in its open and closed positions.
Claim 3
Dependent Claim 16 words
The invention as described in claim 1 wherein said third connector means comprises an extension cord.
Claim 4
Dependent Claim 86 words
The invention as defined in claim 1 wherein said first housing includes a bottom end member having an aperture dimensioned to slidably receive said elongated shaft, and wherein said elongated shaft includes an electrically conducting contact member at its upper end and a radially projecting member secured to said shaft intermediate said contact pin and said buoyant member and above said bottom wall of said first housing, whereby said contact member remains entrained within said first housing and above the fluid level of said sump well.

References Cited (Backward Citations)

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1984-03-09 1984-09-08 1985-03-10 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1988-03-09 1988-09-08 1989-03-10 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1992-03-09 1992-09-08 1993-03-10 $7700.00 Window Closed / Lapsed

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