Invention Grant
- Patent Title: Voltage indicator test mechanism
- Patent Title (中): 电压指示器测试机构
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Application No.: US11608087Application Date: 2006-12-07
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Publication No.: US08013613B2Publication Date: 2011-09-06
- Inventor: Philip Brown Allen, Jr.
- Applicant: Philip Brown Allen, Jr.
- Applicant Address: US IA Davenport
- Assignee: Grace Engineered Products, Inc.
- Current Assignee: Grace Engineered Products, Inc.
- Current Assignee Address: US IA Davenport
- Agency: McKee, Voorhees & Sease, P.L.C.
- Main IPC: G01R31/08
- IPC: G01R31/08

Abstract:
An electrical safety monitor includes line inputs for an L1, an L2, an L3, and a GND three-phase connections, a line monitoring circuit having a plurality of light indicators and configured to produce light if voltage exists between any two of the line inputs to thereby indicate presence of voltage to a user, and a current generating circuit electrically connected to the line monitoring circuit and adapted to generate a test current to the line inputs to transition the device from dead to live thereby allowing the user to discern between a failure state of the line monitoring circuit and an off state of the line monitoring circuit. The current inducing circuit can include a magnet which induces the test current, stored energy, a photocell, an electroactive material or other means for generating the test current.
Public/Granted literature
- US20070132458A1 VOLTAGE INDICATOR TEST MECHANISM Public/Granted day:2007-06-14
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