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US5066898A Expired / Lapsed US ⏱️ 0.0 years remaining

Multi-way switch system having plural remote touch pads

Assignee: Delat Systems Inc
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Filing: 1990-05-03
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Granted: 1991-11-19
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Expires: 2010-05-03
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Abstract

Abstract A multi-way electronic control switch having a central control unit and a plurality of remote touch pads. The central control unit is wired between power and a load, and may be wired as a single pole, single throw switch. Each remote touch pad is connected to the central control unit via a single conducting wire. The central control unit senses signals from a remote touch pad and varies the power to the load accordingly.

Inventors

  • 👤 Ronald E. Miller
  • 👤 Robert L. James

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 16:55
CPC Classifications
H; H05; H05B; H05B47/00; H05B47/10; Y; Y10; Y10S; Y10S323/00; Y10S323/904

Claims Analysis

Total Claims: 12
Claim 1
Independent Claim 144 words
A multi-way switch system comprising: at least one remote switching means for generating an activation signal; central switching means, located remotely from said remote switching means and coupled thereto by a single conducting wire, for controlling power to a load, said central switching means comprising: means for sensing the activation signal produced by said remote switching means; logic means responsive to said activation signal for producing a control signal; means joined to the logic for receiving said control signal and producing a trigger signal; means for providing a synchronization signal to synchronize said trigger signal; and power control means responsive to the synchronized trigger signal for controlling power applied to the load, wherein the power to the load is varied in accordance with a time interval between said control signal and said synchronization signal, the power being reduced as the time interval becomes longer.
Claim 2
Dependent Claim 144 words
A multi-way switch system comprising: at least one remote switching means for generating an activation signal; central switching means, located remotely from said remote switching means and coupled thereto by a single conducting wire, for controlling power to a load, said central switching means comprising: means for sensing the activation signal produced by said remote switching means; logic means responsive to said activation signal for producing a control signal; means joined to the logic for receiving said control signal and producing a trigger signal; means for providing a synchronization signal to synchronize said trigger signal; and power control means responsive to the synchronized trigger signal for controlling power applied to the load, wherein the power to the load is varied in accordance with a time interval between said control signal and said synchronization signal, the power being reduced as the time interval becomes longer.
Claim 3
Dependent Claim 138 words
A multi-way switch system comprising: at least one remote switching means for generating an activation signal; central switching means, located remotely from said remote switching means and coupled thereto by a single conducting wire, for controlling power to a load, said central switching means comprising: means for sensing the activation signal produced by said remote switching means; logic means responsive to said activation signal for producing a control signal; means joined to the logic for receiving said control signal and producing a trigger signal; means for providing a synchronization signal to synchronize said trigger signal; and power control means responsive to the synchronized trigger signal for controlling power applied to the load, wherein the power to the load is varied in a step-like manner, with each activation signal initiating a step change of a predetermined amount of power.
Claim 4
Dependent Claim 138 words
A multi-way switch system comprising: at least one remote switching means for generating an activation signal; central switching means, located remotely from said remote switching means and coupled thereto by a single conducting wire, for controlling power to a load, said central switching means comprising: means for sensing the activation signal produced by said remote switching means; logic means responsive to said activation signal for producing a control signal; means joined to the logic for receiving said control signal and producing a trigger signal; means for providing a synchronization signal to synchronize said trigger signal; and power control means responsive to the synchronized trigger signal for controlling power applied to the load, wherein the power to the load is varied in a step-like manner, with each activation signal initiating a step change of a predetermined amount of power.
Claim 5
Dependent Claim 149 words
A multi-way switch system comprising: at least one remote switching means for generating an activation signal; central switching means, located remotely from said remote switching means and coupled thereto by a single conducting wire, for controlling power to a load, said central switching means comprising: means for sensing the activation signal produced by said remote switching means; logic means responsive to said activation signal for producing a control signal, said logic means comprising means for counting a predetermined time period, the power to the load being terminated when the predetermined time period elapses, or when an activation signal is sensed during counting of the time period; means joined to the logic for receiving said control signal and producing a trigger signal; means for providing a synchronization signal to synchronize said trigger signal; and power control means responsive to the synchronized trigger signal for controlling power applied to the load.
Claim 6
Dependent Claim 149 words
A multi-way switch system comprising: at least one remote switching means for generating an activation signal; central switching means, located remotely from said remote switching means and coupled thereto by a single conducting wire, for controlling power to a load, said central switching means comprising: means for sensing the activation signal produced by said remote switching means; logic means responsive to said activation signal for producing a control signal, said logic means comprising means for counting a predetermined time period, the power to the load being terminated when the predetermined time period elapses, or when an activation signal is sensed during counting of the time period; means joined to the logic for receiving said control signal and producing a trigger signal; means for providing a synchronization signal to synchronize said trigger signal; and power control means responsive to the synchronized trigger signal for controlling power applied to the load.
Claim 7
Dependent Claim 25 words
A multi-way switch system according to claims 1 or 3, wherein said central switching means is coupled between a source of power and the load.
Claim 8
Dependent Claim 24 words
A multi-way switch system according to claims 1 or 3, wherein said central switching means is wired as a single pole, single throw switch.
Claim 9
Dependent Claim 21 words
A multi-way switch system according to claims 1 or 3, wherein said remote switching means comprises a pad sensitive to touch.
Claim 10
Dependent Claim 28 words
A multi-way switch system according to claims 1 or 3, wherein the load is a lamp, and said central switching means operates to control power to said lamp.
Claim 11
Dependent Claim 29 words
A multi-way switch system according to claims 1 or 3, wherein the load is a lamp, and said central switching means operates to switch said lamp on and off.
Claim 12
Dependent Claim 29 words
A multi-way switch system according to claims 1 or 3, wherein said central switching means further comprises means for supplying bias voltage to said sensing, logic and synchronization means.

References Cited (Backward Citations)

US4525634A Cited
US4591765A Cited
US4651022A Cited
US4758735A Cited
US4939382A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1994-11-18 1995-05-20 1995-11-19 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1998-11-18 1999-05-20 1999-11-19 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2002-11-18 2003-05-20 2003-11-19 $7700.00 Window Closed / Lapsed

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