Thermal measuring and testing – Temperature measurement – Combined with diverse art device
Reexamination Certificate
2007-11-13
2007-11-13
Verbitsky, Gail (Department: 2859)
Thermal measuring and testing
Temperature measurement
Combined with diverse art device
C374S208000, C374S148000, C392S441000, C219S510000
Reexamination Certificate
active
11260404
ABSTRACT:
A temperature detecting heater with an indicating structure for an aquarium, the temperature detecting heater mainly has an indicating structure including a control circuit and a two-color LED indicating lamp in its circuitry. After the temperature detecting heater is turned on, temperature detectors of the control circuit detects a voltage to compare it with a reference voltage at a set point; when the temperature at the detected point is lower than that of the set point, a heating element of the temperature detecting heater is controlled to work normally and makes the LED indicating lamp show a first color, for instance, red; but when the temperature at the detected point is higher than that of the set point, the heating element of the temperature detecting heater is controlled to stop working and makes the LED indicating lamp show a second color, for instance, green. By emitting light showing two different colors from the two-color LED indicating lamp of the indicating structure, a user can clearly know whether the heating function of the temperature detecting heater is normal.
REFERENCES:
patent: 3737621 (1973-06-01), Elkins
patent: 3896289 (1975-07-01), Di Renna
patent: 4124793 (1978-11-01), Colman
patent: 4378488 (1983-03-01), Jager
patent: 4418339 (1983-11-01), Spofford et al.
patent: 4812626 (1989-03-01), Strada
patent: 4975562 (1990-12-01), Friedman
patent: 4983813 (1991-01-01), Van Tulleken et al.
patent: 4994792 (1991-02-01), Ziegler, Jr.
patent: 5392380 (1995-02-01), Tsai
patent: 5568587 (1996-10-01), Marioni
patent: 6393213 (2002-05-01), Bresolin
patent: 6455820 (2002-09-01), Bradenbaugh
patent: 6658205 (2003-12-01), Wang
patent: 7046923 (2006-05-01), Magri
patent: 7049554 (2006-05-01), Lolato
patent: 7085482 (2006-08-01), Renoud-Grappin
patent: 2001/0046380 (2001-11-01), LeFebvre
patent: 2005/0242080 (2005-11-01), Magri
patent: 2007/0019709 (2007-01-01), Wang
patent: 0543655 (2002-11-01), None
Eiko Electric Products Corp.
Verbitsky Gail
LandOfFree
Temperature detecting heater with indicating structure for... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Temperature detecting heater with indicating structure for..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Temperature detecting heater with indicating structure for... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3830142