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US4814752A Expired / Lapsed US ⏱️ 0.0 years remaining

Overflow water containment pedestal with high level sensor and shutoff

Assignee: Individual
•
Filing: 1987-11-16
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Granted: 1989-03-21
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Expires: 2007-11-16
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Abstract

Abstract A washer-type machine containment pedestal tray having sensor-shutoff device for removing power from the washing machine. The invention provides a pedestal for mounting a washing machine thereon and further, that is capable of containing overflow water should the machine malfunction. The collection of water in the containment pedestal tray actuates a float which in turn trips an electrical switch to remove operative power from the washing machine motor, thus stopping the overflow. Adjunct means are also used on the switch for sounding an audible alarm to operating personnel.

Inventors

  • 👤 William L. Lehman

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 01:04
CPC Classifications
G; G01; G01F; G01F23/00; G01F23/30; G01F23/56; G01F23/60; D; D06; D06F; D06F39/00; D06F39/08; D06F39/081; G08; G08B; G08B21/00; G08B21/18; G08B21/182

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 290 words
The combination of an overflow pedestal-type container with a switch for shutting off electrical power to a washing machine mounted thereon and comprising: a containment pedestal tray for mounting said machine thereon comprising an essentially quadrilateral base having contiguous elevated sides about the periphery of said base and marginal material hardpoints, said tray adapted to hold liquid overflow from said machine and further comprising a materially diminished area proximate the central area of said base in order to reduce the amount of material required to fabricate said base; said switch mounted adjacent said tray; said switch, further comprising a sensor-shutoff device, said switch connected to a float, an electrical circuit, and said circuit further comprising a socket plug which feeds hot, common and ground power source inputs to a first discrete hot-ground output and feeds ground and common input to a second discrete ground-common output and also provides an interconnected hot output between said first and said second discrete outputs, a switched plug which connects said switch which is normally closed across the first discrete hot-hot outputs and to the first discrete ground output, and a washing machine plug which connects said motive means to said second discrete ground-common-interconnected hot-outputs, whereby when said switch is opened by said float in response to said water presence, said hot interconnect is broken and power source hot input is removed from said switch and thereby from said motive means, and additional electrical circuitry connecting said switch to an electric power source and further connecting said switch to the washing machine motor, said machine mounted on the pedestal handpoints of said tray; and said float responsive to water overflowing said machine for activating said switch and thereby disconnecting said power source from said switch.
Claim 2
Dependent Claim 290 words
The combination of an overflow pedestal-type container with a switch for shutting off electrical power to a washing machine mounted thereon and comprising: a containment pedestal tray for mounting said machine thereon comprising an essentially quadrilateral base having contiguous elevated sides about the periphery of said base and marginal material hardpoints, said tray adapted to hold liquid overflow from said machine and further comprising a materially diminished area proximate the central area of said base in order to reduce the amount of material required to fabricate said base; said switch mounted adjacent said tray; said switch, further comprising a sensor-shutoff device, said switch connected to a float, an electrical circuit, and said circuit further comprising a socket plug which feeds hot, common and ground power source inputs to a first discrete hot-ground output and feeds ground and common input to a second discrete ground-common output and also provides an interconnected hot output between said first and said second discrete outputs, a switched plug which connects said switch which is normally closed across the first discrete hot-hot outputs and to the first discrete ground output, and a washing machine plug which connects said motive means to said second discrete ground-common-interconnected hot-outputs, whereby when said switch is opened by said float in response to said water presence, said hot interconnect is broken and power source hot input is removed from said switch and thereby from said motive means, and additional electrical circuitry connecting said switch to an electric power source and further connecting said switch to the washing machine motor, said machine mounted on the pedestal handpoints of said tray; and said float responsive to water overflowing said machine for activating said switch and thereby disconnecting said power source from said switch.
Claim 3
Dependent Claim 14 words
The invention of claim 1 wherein said first means further comprises electric alarming means.
Claim 4
Dependent Claim 15 words
The invention of claim 2 wherein said alarming means further comprises an electric audio device.
Claim 5
Dependent Claim 35 words
The invention of claim 1 wherein said motive means further comprises the motor of said machine which derives its primary motive power from electric power of said source and which is transitioned through said switch.

References Cited (Backward Citations)

US3069671A Cited
US3200388A Cited
US4114644A Cited
US4380243A Cited
US4574977A Cited
US4484661A Cited
US4442969A Cited
US4660734A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1992-03-20 1992-09-19 1993-03-21 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1996-03-20 1996-09-19 1997-03-21 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2000-03-20 2000-09-19 2001-03-21 $7700.00 Window Closed / Lapsed

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