Electricity: electrical systems and devices – Safety and protection of systems and devices – Ground fault protection
Reexamination Certificate
2006-11-14
2006-11-14
Jackson, Stephen W. (Department: 2836)
Electricity: electrical systems and devices
Safety and protection of systems and devices
Ground fault protection
Reexamination Certificate
active
07136266
ABSTRACT:
In the present invention the basic detection and interruption components of an Immersion Detection Circuit Interrupter (IDCI), in combination with the line, neutral and shield conductors of an extension or appliance cord provides a new improved type of detector, a Leakage Current Detector Interrupter (LCDI) which interrupts current to a load when current leakage is detected between the line or neutral conductors of the cord and the shield conductor. The new improved LCDI detector provides, either singularly or in combination, the following advantages: Prevents the LCDI from being reset should the device become inoperative (reset lockout); Provides an indication of the integrity of the shield in the extension or appliance cord; Tests the integrity of the shield within the extension or appliance cord, in addition to testing the functionality of the LCDI; Interrupts current to the load if an electrical connection is detected between the shield and neutral, or the shield and ground, in addition to the existing detection of leakage current from the phase conductor; Allows the LCDI to trip during an open neutral condition by utilizing the ground connection as a return wire for the trip coil; and/or Provides immersion detection at the receptacle end of the extension cord in addition to protection from leakage faults.
REFERENCES:
patent: 4709293 (1987-11-01), Gershen et al.
patent: 4780094 (1988-10-01), Batty et al.
patent: 4853822 (1989-08-01), Kamijo
patent: 5097099 (1992-03-01), Miller
patent: 5642248 (1997-06-01), Campolo et al.
patent: 5700150 (1997-12-01), Morin
patent: 6016244 (2000-01-01), Gershen et al.
patent: 6323652 (2001-11-01), Collier et al.
patent: 6525914 (2003-02-01), Legatti
patent: 6693779 (2004-02-01), DiSalvo
Bradley Roger M.
Campolo Steve
Gershen Bernard J.
Herzfeld David
Richter James
Benenson Boris
Jackson Stephen W.
Leviton Manufacturing Co. Inc.
Sutton Paul J.
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