Claims
- 1. A defoggable window comprising:
- a pane having a central viewing area;
- a plurality of spaced generally parallel elongated heating resistors disposed on a surface of said central viewing area of said pane;
- a first bus and a second bus disposed on said surface of said pane laterally of said central viewing area and connected to the respective ends of said resistors;
- a plurality of electrically conductive, moisture-sensing probes spaced apart from each other and from said central viewing area at widely spaced zones on said pane, at least one of said probes including a conductive member disposed on a surface of said pane and having at least a portion thereof running substantially parallel to and closely spaced from one of said buses, each of said probes having at least a portion running substantially parallel to said heating resistors, said probes each having its repective latter said parallel running portion of a length approximately the length of said heating resistors and each of said probes being sensitive to fogging of said pane in its immediate vicinity.
- 2. A defoggable window according to claim 1, wherein each said probe comprises a conductor extending parallel and in adjacently and spaced relation to one of said heating resistors.
- 3. A defoggable window according to claim 1, wherein each said probe comprises two closely spaced parallel conductors electrically connected together and a third conductor extending parallel and between said two conductors and spaced therefrom.
- 4. A defoggable window according to claim 1, wherein each said probe comprises a conductor extending parallel and in adjacently and spaced relation to one of said heating resistors.
- 5. A defoggable window according to claim 1, wherein one of said probes extends along said pane in the vicinity of its upper portion and another of said probes extends along said pane in vicinity of its lower portion.
Priority Claims (1)
Number |
Date |
Country |
Kind |
54277 A/73 |
Dec 1973 |
ITX |
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CROSS-REFERENCE TO RELATED APPLICATION
This application is a division of the co-pending application of Giorgio Ciarniello et al entitled AUTOMATIC CONTROL DEVICE FOR THE DEFOGGING CIRCUITS OF GLASS PANES filed Dec. 9, 1974 under Ser. No. 531,098, issued on Sept. 13, 1977 as U.S. Pat. No. 4,048,469, which is incorporated herein in its entirety by reference.
US Referenced Citations (6)
Divisions (1)
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Number |
Date |
Country |
Parent |
531098 |
Dec 1974 |
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