Leakage protection method and device having live/neutral wire identification function

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9941685
SERIAL NO

14767915

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

A leakage protection method and device with live/neutral wire identification that identify live wire and neutral wire of a power supply by means of a live/neutral wire identification device, and correct live/neutral wire connections, so that a surface leakage signal pickup device is always connected to the neutral wire and to surface of the electric device, and electric potential of the surface is always monitored over the neutral wire. When the Surface leaks electricity, the leakage signal pickup device immediately drives an electromagnetic tripping device to break a main circuit switch, thereby breaking the connection between the electric device and the power source. The method and device work effectively even when the electric device is not grounded.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
WU WEIDING JIA QIAO ROAD NANJING CITY JIANGSU PROVINCE 210009 NO 87 NANJING CITY JIANGSU PROVINCE 210009

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Wu, Wei Wenzhou, CN 1105 10307

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
7.5 Year Payment $3600.00 $1800.00 $900.00 Oct 10, 2025
11.5 Year Payment $7400.00 $3700.00 $1850.00 Oct 10, 2029
Fee Large entity fee small entity fee micro entity fee
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00