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US4558261A Expired / Lapsed US ⏱️ 0.0 years remaining

Exclusive plug for artistic table lamps

Assignee: Individual
•
Filing: 1984-02-14
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Granted: 1985-12-10
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Expires: 2004-02-14
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Abstract

Abstract An exclusive plug for artistic table lamps comprising main parts, namely a signal input line, two voltage output lines, a demagnetizing wire, a light-adjustment and switch-actuating operational circuit, and electric power indication light, of which the signal input line and two voltage output lines use a co-axial core cable, and a demagnetizing wire is provided around this three-core cable. The light adjustment and switch-actuation operational circuit is installed in the body of the plug, thus making the plug of this invention, when used in conjunction with a general artistic table lamp, convert the overall external surface of the common artistic table lamp stand into a touch induction surface. This device is completely applicable to the artistic table lamp, no matter whether the table lamp stand is made of a material of low induction coefficient like ceramics, pottery, marble, glass, wood, plastics etc., or even of metallic materials.

Inventors

  • 👤 Hsiang T. Cheng

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-28 15:06
CPC Classifications
H; H05; H05B; H05B39/00; H05B39/04; H05B39/08; H05B39/083; H05B39/085; H02; H02M; H02M5/00; H02M5/02; H02M5/04; H02M5/22; H02M5/25; H02M5/257; H02M5/2573; H02M5/2576; Y; Y10; Y10S; Y10S315/00; Y10S315/04

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 73 words
A power plug for use with artistic table lamps, comprising a plug means, plug body, power indicator light, operational circuit, base plate and cable means, wherein the cable means includes a three core line having one input signal line and two output voltage lines, demagnetizing wires being respectively provided on the outside of the input signal line and around said three core line, and said operational circuit is installed in said plug body.
Claim 2
Dependent Claim 73 words
A power plug for use with artistic table lamps, comprising a plug means, plug body, power indicator light, operational circuit, base plate and cable means, wherein the cable means includes a three core line having one input signal line and two output voltage lines, demagnetizing wires being respectively provided on the outside of the input signal line and around said three core line, and said operational circuit is installed in said plug body.

References Cited (Backward Citations)

US3992634A Cited
US4125767A Cited
US4211959A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1988-12-09 1989-06-10 1989-12-10 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1992-12-09 1993-06-10 1993-12-10 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1996-12-09 1997-06-10 1997-12-10 $7700.00 Window Closed / Lapsed

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