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Class Information
Number: 340/583
Name: Communications: electrical > Condition responsive indicating system > Specific condition > Ice formation > Photoelectric
Description: Subject matter wherein the ice formation is detected by modification of light incident on an electrical photo responsive device.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7474226 |
Smoke detector calibration |
Jan. 6, 2009 |
| 7400260 |
Optical system and element for detecting ice and water |
Jul. 15, 2008 |
| 7337621 |
Optical frost sensor |
Mar. 4, 2008 |
| 7327273 |
Fluid monitoring device |
Feb. 5, 2008 |
| 7324001 |
System and method for detecting and discriminating between water and ice formation on objects |
Jan. 29, 2008 |
| 7312713 |
Methods and systems for detection of ice formation on surfaces |
Dec. 25, 2007 |
| 7301478 |
Vehicle safety warning device |
Nov. 27, 2007 |
| 7265846 |
Methods for detecting ice and liquid water on surfaces |
Sep. 4, 2007 |
| 7224284 |
Smoke detector calibration |
May. 29, 2007 |
| 7154400 |
Fire detection method |
Dec. 26, 2006 |
| 7151460 |
Electronic device having a proximity detector |
Dec. 19, 2006 |
| 7091869 |
Optoacoustic measuring arrangement and use thereof |
Aug. 15, 2006 |
| 6954146 |
Method for determining a state of a road during the driving mode of a motor vehicle |
Oct. 11, 2005 |
| 6753778 |
Orientation/time sensing alarm device for golf club |
Jun. 22, 2004 |
| 6737977 |
Fire detector unit |
May. 18, 2004 |
| 6654484 |
Secure control data entry system |
Nov. 25, 2003 |
| 6529132 |
Device for monitoring an enclosure, in particular the hold of an aircraft |
Mar. 4, 2003 |
| 6166657 |
Imminent icing condition enunciator |
Dec. 26, 2000 |
| 6166645 |
Road surface friction detector and method for vehicles |
Dec. 26, 2000 |
| 6150639 |
Anti-freezing system, anti-froster for windshield and rear window of motor vehicles |
Nov. 21, 2000 |
| 6091335 |
Optical device for the detection of icing conditions on aircraft |
Jul. 18, 2000 |
| 6069565 |
System for detecting ice or snow on surface which specularly reflects light |
May. 30, 2000 |
| 6057769 |
Intelligent alarm system with snow sensor |
May. 2, 2000 |
| 6052056 |
Substance detection system and method |
Apr. 18, 2000 |
| 6049282 |
Method and apparatus for measuring ice thickness on substrates using backscattering of gamma rays |
Apr. 11, 2000 |
| 6049387 |
Process for determining the condition of a road surface and system for implementing the process |
Apr. 11, 2000 |
| 6010095 |
Icing detector for aircraft |
Jan. 4, 2000 |
| 5982278 |
Road monitoring device |
Nov. 9, 1999 |
| 5921501 |
Aircraft ice detecting system |
Jul. 13, 1999 |
| 5905429 |
Audio label |
May. 18, 1999 |
| 5890322 |
Method and apparatus for preventing the formation of ice dams and icicles on the roof of a house |
Apr. 6, 1999 |
| 5850284 |
Apparatus for detecting a polarization altering substance on a surface |
Dec. 15, 1998 |
| 5841538 |
Apparatus for detecting a polarization altering substance on a surface |
Nov. 24, 1998 |
| 5838239 |
System for detecting ice or snow on surface which specularly reflects light |
Nov. 17, 1998 |
| 5821862 |
Method and apparatus for measuring ice thickness on substrates using backscattering of gamma rays |
Oct. 13, 1998 |
| 5818339 |
Method and apparatus for detecting ice and packed snow |
Oct. 6, 1998 |
| 5801647 |
Method and apparatus for measuring road surface conditions |
Sep. 1, 1998 |
| 5796344 |
Imminent icing condition enunciator |
Aug. 18, 1998 |
| 5760711 |
Icing detection system |
Jun. 2, 1998 |
| 5748091 |
Fiber optic ice detector |
May. 5, 1998 |
| 5663710 |
Backscatter-type visibility detection |
Sep. 2, 1997 |
| 5650610 |
Apparatus and method for remote detection of ice or other birefringent material on a surface |
Jul. 22, 1997 |
| 5617076 |
System for detecting ice or snow on surface which specularly reflects light |
Apr. 1, 1997 |
| 5596320 |
System for detection of ice, water, glycol solution, and other chemical species |
Jan. 21, 1997 |
| 5589822 |
System for detecting ice or snow on surface which specularly reflects light |
Dec. 31, 1996 |
| 5557261 |
Ice monitoring and detection system |
Sep. 17, 1996 |
| 5532738 |
System for detecting ice or snow on surface which specularly reflects light |
Jul. 2, 1996 |
| 5528224 |
Optical and acoustic weather identification system |
Jun. 18, 1996 |
| 5500530 |
Electro-optic ice detection |
Mar. 19, 1996 |
| 5484121 |
Icing detector for aircraft surfaces |
Jan. 16, 1996 |
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