Electrical safety device
Abstract
An electrical safety device for use in power tools that is designed to automatically discontinue operation of the power tool upon physical contact of the tool with a concealed conductive material. A step down transformer is used to supply the operating power for a disconnect relay and a reset relay. When physical contact is made between the power tool and the conductive material, an electrical circuit through the disconnect relay is completed and the operation of the power tool is automatically interrupted. Once the contact between the tool and conductive material is broken, the power tool can be quickly and easily reactivated by a reset push button activating the reset relay. A remote reset is provided for convenience and efficiency of operation.
- Inventors:
-
- Greenock, PA
- Issue Date:
- Research Org.:
- Westinghouse Electric Corp., Pittsburgh, PA (United States)
- OSTI Identifier:
- 867806
- Patent Number(s):
- 5014154
- Assignee:
- United States Department of Energy (Washington, DC)
- Patent Classifications (CPCs):
-
H - ELECTRICITY H02 - GENERATION H02H - EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- DOE Contract Number:
- AC11-76PN00014
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- electrical; safety; device; power; tools; designed; automatically; discontinue; operation; tool; physical; contact; concealed; conductive; material; step; transformer; supply; operating; disconnect; relay; reset; circuit; completed; interrupted; broken; quickly; easily; reactivated; push; button; activating; remote; provided; convenience; efficiency; safety device; operating power; remote reset; conductive material; electrical circuit; physical contact; power tool; electrical safety; /361/340/
Citation Formats
White, David B. Electrical safety device. United States: N. p., 1991.
Web.
White, David B. Electrical safety device. United States.
White, David B. Tue .
"Electrical safety device". United States. https://www.osti.gov/servlets/purl/867806.
@article{osti_867806,
title = {Electrical safety device},
author = {White, David B},
abstractNote = {An electrical safety device for use in power tools that is designed to automatically discontinue operation of the power tool upon physical contact of the tool with a concealed conductive material. A step down transformer is used to supply the operating power for a disconnect relay and a reset relay. When physical contact is made between the power tool and the conductive material, an electrical circuit through the disconnect relay is completed and the operation of the power tool is automatically interrupted. Once the contact between the tool and conductive material is broken, the power tool can be quickly and easily reactivated by a reset push button activating the reset relay. A remote reset is provided for convenience and efficiency of operation.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1991},
month = {1}
}