US6646447B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Identifying one of a plurality of wires of a power transmission cable
Assignee: Ambient Corp USA
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Filing: 2001-09-07
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Granted: 2003-11-11
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Expires: 2021-09-07
Abstract
Abstract There is provided a method for identifying one of a plurality of neutral wires of a power transmission cable. The method comprises (a) applying a signal to a selected neutral wire, at a first point on the power transmission cable, (b) sensing a relative magnitude of the signal on each of the plurality of neutral wires at a second point on the power transmission cable that is remote from the first point, and (c) identifying the selected neutral wire from the relative magnitudes. There is also provided a system for identifying one of a plurality of neutral wires of a power transmission cable.
Inventors
- 👤 Yehuda Cern
- 👤 George Kaplun
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:10
CPC Classifications
H; H04; H04B; H04B3/00; H04B3/54; H04B3/56; G; G01; G01R; G01R19/00; H04B1/00; H04B2203/00; H04B2203/54; H04B2203/5462; H04B2203/5483; H04B2203/5487
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
105 words
A method for identifying one of a plurality of neutral wires of a power transmission cable, wherein said plurality of wires are connected together at a first end of said transmission cable and at a second end of said transmission cable, said method comprising: applying a signal to a selected neutral wire, at a first point on said power transmission cable proximate to said first end; sensing a relative magnitude of said signal on each of said plurality of neutral wires at a second point on said power transmission cable proximate to said second end; and identifying said selected neutral wire from said relative magnitudes.
Claim 2
Independent Claim
105 words
A method for identifying one of a plurality of neutral wires of a power transmission cable, wherein said plurality of wires are connected together at a first end of said transmission cable and at a second end of said transmission cable, said method comprising: applying a signal to a selected neutral wire, at a first point on said power transmission cable proximate to said first end; sensing a relative magnitude of said signal on each of said plurality of neutral wires at a second point on said power transmission cable proximate to said second end; and identifying said selected neutral wire from said relative magnitudes.
Claim 3
Dependent Claim
29 words
The method of claim 1 , wherein said identifying step identifies said selected neutral wire as said one of said plurality of neutral wires having a greatest relative magnitude.
Claim 4
Dependent Claim
20 words
The method of claim 1 , wherein said applying step comprises inductively coupling said signal to said selected neutral wire.
Claim 5
Dependent Claim
20 words
The method of claim 1 , wherein said sensing step comprises inductively coupling said signal from said selected neutral wire.
Claim 6
Independent Claim
112 words
A system for identifying one of a plurality of neutral wires of a power transmission cable, wherein said plurality of wires are connected together at a first end of said transmission cable and at a second end of said transmission cable, said system comprising: a receiver for sensing a signal from a selected neutral wire of said power transmission cable; and an indicator of a magnitude of said signal, wherein said signal is applied to said selected wire at a first point on said power transmission cable proximate to said first end, and said receiver senses said signal at a second point on said power transmission cable proximate to said second end.
Claim 7
Independent Claim
112 words
A system for identifying one of a plurality of neutral wires of a power transmission cable, wherein said plurality of wires are connected together at a first end of said transmission cable and at a second end of said transmission cable, said system comprising: a receiver for sensing a signal from a selected neutral wire of said power transmission cable; and an indicator of a magnitude of said signal, wherein said signal is applied to said selected wire at a first point on said power transmission cable proximate to said first end, and said receiver senses said signal at a second point on said power transmission cable proximate to said second end.
Claim 8
Dependent Claim
59 words
The system of claim 5 , further comprising: a ferrite toroid having a radial slot through which said selected neutral wire is routed; and a winding that is wound around a portion of said ferrite toroid and connected to an input of said receiver, wherein said signal is inductively coupled from said selected neutral wire via said ferrite toroid.
Claim 9
Dependent Claim
26 words
The system of claim 5 , further comprising an inductive coupler through which said signal is applied to said selected neutral wire at said first point.
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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) | 2006-11-10 | 2007-05-12 | 2007-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-11-10 | 2011-05-12 | 2011-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2014-11-10 | 2015-05-12 | 2015-11-11 | $7700.00 | Window Closed / Lapsed |