IP Library Granted Patent US 7,605,549
Granted Patent B2
US 7,605,549 · App. 12/025,591 · Granted Oct 20, 2009

System and method for current and/or temperature control of light fixture

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Quick Facts
Patent No.
US 7,605,549
App. No.
12/025,591
Granted
Oct 20, 2009
Kind
B2
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.

Claims (32)

1. A system for current and/or temperature control of light fixtures, comprising:

a sensor structured to be in communication with a light fixture, to sense a current flow or a temperature of the light fixture, and to communicate an input signal relative to the current flow or temperature;

a variable switch structured to be in communication with the light fixture and regulate the current flow of the light fixture in response to a control signal;

a controller in communication with the sensor and the variable switch and structured to monitor the input signal communicated by the sensor, to compare the input signal to a condition, and to communicate the control signal to the variable switch to control its operation, and

a bypass circuit structured to apply a normal current to the light fixture should a failure occur with said sensor, said variable switch or said controller.

2. The system of claim 1 , wherein the sensor comprises at least one of a current transformer, a thermistor, or a transducer.

3. The system of claim 1 , wherein the condition is one of a predetermined current parameter or a predetermined temperature parameter.

4. The system of claim 1 , wherein the variable switch comprises at least one of a triac, a diode, or a semi-conducting switch device.

5. The system of claim 1 , wherein the variable switch and at least a portion of the controller comprise a dimmer circuit.

6. The system of claim 1 , wherein the controller comprises at least one of a conductor, a resistor, a capacitor, a transformer, a transistor, a semiconductor, an integrated circuit, a chip, a circuit board, an electronic logic, a programmable logic, a microprocessor, or a computing processor.

7. The system of claim 1 , wherein the controller is further structured to be in communication with and at least partially operated via a remote control.

8. The system of claim 1 , wherein the controller is further structured to be in communication with the light fixture and to switch the current flow within the light fixture circuit between at least two paths, wherein one path is in communication with the variable switch.

9. The system of claim 1 , further comprising a relay in communication with the controller and structured to be in communication with the light fixture and to switch the current flow within the light fixture circuit between at least two paths in response to a signal communicated from the controller, wherein one of the paths is in communication with the variable switch.

10. A method for current and/or temperature control of light fixtures, comprising:

providing a sensor structured to be in communication with a light fixture, to sense a current flow or a temperature of the light fixture, and to communicate an input signal relative to the sensed current flow or temperature;

providing a variable switch structured to be in communication with the light fixture and regulate the current flow of the light fixture in response to a control signal;

providing a controller in communication with the sensor and the variable switch and structured to monitor the input signal communicated by the sensor, to compare the input signal to a condition, and to communicate the control signal to the variable switch to control its operation;

monitoring the current flow or the temperature of the light fixture via communication of the input signal from the sensor to the controller;

regulating the current flow of the light fixture in response to the controller determining that the input signal meets the condition via the controller communicating the control signal to the variable switch, the regulating including a bypass mode should a malfunction occur with the sensor, controller, or monitoring of the current flow, the bypass mode applying a normal current to the light fixtures without regulatory decreasing the current.

11. The method of claim 10 , wherein regulating the current flow comprises regulating the current flow of the light fixture in response to the controller determining that the input signal meets one of a condition of equaling or exceeding a predetermined current parameter or a condition of equaling or exceeding a predetermined temperature parameter.

12. The method of claim 10 , wherein regulating the current flow comprises maintaining or reducing the current flow of the light fixture via the controller communicating the control signal to the variable switch.

13. The method of claim 10 , wherein regulating the current flow comprises reducing the current flow according to a predetermined procedure comprising one of reducing it by a predetermined amount or reducing it to a predetermined amount.

14. The method of claim 10 , wherein regulating the current flow comprises communicating the control signal to a dimmer circuit comprised of the variable switch and at least a portion of the controller.

15. A system for current and/or temperature control of light fixtures, comprising:

sensor means for sensing the current flow or temperature of a light fixture and to communicate an input signal relative to the current flow or temperature;

controller means for controlling the current flow in response to the input signal received from the sensor means, the controller means reducing the current in response to an overload input signal, the controller means also including a bypass for directing a normal current to the light fixture should a failure occur with the controller means.

16. The system of claim 15 wherein the controller means includes a variable switch structured to be in communication with the light fixture and regulate the current flow of the light fixture in response to a control signal.

17. The system of claim 16 wherein the controller means includes a controller in communication with the sensor and the variable switch and structured to monitor the input signal communicated by the sensor, to compare the input signal to a condition, and to communicate the control signal to the variable switch to control its operation.

18. The system of claim 17 wherein the bypass is structured to apply a normal current to the light fixture should a failure occur with said sensor, said variable switch or said controller.

19. The system of claim 15 , wherein the sensor comprises at least one of a current transformer, a thermistor, or a transducer.

20. The system of claim 16 , wherein the variable switch comprises at least one of a triac, a diode, or a semi-conducting switch device.

21. The system of claim 17 , wherein the variable switch and at least a portion of the controller comprise a dimmer circuit.

Assignments (10)
RELEASE OF SECURITY INTEREST Recorded Jan 26, 2022
From: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH, AS COLLATERAL AGENT
To: HUNTER FAN COMPANY
Reel/Frame 058871/0271 →
SECURITY INTEREST Recorded May 11, 2021
From: HUNTER FAN COMPANY
To: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH, AS THE COLLATERAL AGENT
Reel/Frame 056198/0753 →
RELEASE OF SECURITY INTEREST IN PATENTS RECORDED AT REEL 042302/FRAME 0599 Recorded May 10, 2021
From: CERBERUS BUSINESS FINANCE, LLC
To: HUNTER FAN COMPANY
Reel/Frame 056194/0819 →
PATENT RELEASE AND REASSIGNMENT Recorded Apr 21, 2017
From: GUGGENHEIM CORPORATE FUNDING, LLC
To: HUNTER FAN COMPANY
Reel/Frame 042312/0285 →
PATENT RELEASE AND REASSIGNMENT Recorded Apr 21, 2017
From: ANTARES CAPITAL LP (SUCCESSOR IN INTEREST TO GENERAL ELECTRIC CAPITAL CORPORATION)
To: HUNTER FAN COMPANY
Reel/Frame 042310/0462 →
GRANT OF A SECURITY INTEREST -- PATENTS Recorded Apr 20, 2017
From: HUNTER FAN COMPANY
To: CERBERUS BUSINESS FINANCE, LLC, AS COLLATERAL AGENT
Reel/Frame 042302/0599 →
ASSIGNMENT OF INTELLECTUAL PROPERTY SECURITY AGREEMENTS Recorded Aug 25, 2015
From: GENERAL ELECTRIC CAPITAL CORPORATION
To: ANTARES CAPITAL LP
Reel/Frame 036463/0407 →
PATENT SECURITY AGREEMENT (FIRST LIEN) Recorded Feb 12, 2013
From: HUNTER FAN COMPANY
To: GENERAL ELECTRIC CAPITAL CORPORATION
Reel/Frame 029795/0222 →
PATENT SECURITY AGREEMENT (SECOND LIEN) Recorded Feb 12, 2013
From: HUNTER FAN COMPANY
To: GUGGENHEIM CORPORATE FUNDING, LLC
Reel/Frame 029795/0405 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 4, 2008
From: MEHTA, VINAY; BYRNE, BRENDAN PATRICK
To: HUNTER FAN COMPANY
Reel/Frame 020461/0216 →