System and method for current and/or temperature control of...

Electric lamp and discharge devices: systems – Current and/or voltage regulation – Automatic regulation

Reexamination Certificate

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Details

C315S225000, C315S308000, C315S119000

Reexamination Certificate

active

07605549

ABSTRACT:
A system for current and/or temperature control of light fixtures includes a sensor in communication with a light fixture, sense a current flow or a temperature of the light fixture, and communicate an input signal relative to the current flow or the temperature; a variable switch in communication with the light fixture to regulate the current flow of the light fixture in response to a control signal; and a controller in communication with the sensor and the variable switch to monitor the input signal, compare the input signal to a condition, and communicate the control signal to the variable switch to control its operation. A bypass circuit applies a normal current directly to the light fixture should a failure occur with the sensor, the variable switch or the controller. A method for current and/or temperature control of light fixtures includes providing the system, monitoring the current flow or the temperature of the light fixture; regulating the current flow of the light fixture, and bypassing the monitoring and regulating should a failure occur in the circuitry.

REFERENCES:
patent: 4675777 (1987-06-01), Watrous
patent: 5762699 (1998-06-01), McGovern
patent: 5834908 (1998-11-01), Boland et al.
patent: 5909090 (1999-06-01), Nakamura et al.
patent: 6339296 (2002-01-01), Goral
patent: 2004/0100208 (2004-05-01), Readio et al.
patent: 19739740 (1998-10-01), None
patent: 2349959 (2000-11-01), None
patent: 10284266 (1998-10-01), None

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