Invention Grant
- Patent Title: Heatable surface device
- Patent Title (中): 加热表面装置
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Application No.: US14096591Application Date: 2013-12-04
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Publication No.: US09532403B2Publication Date: 2016-12-27
- Inventor: Paul Kielar
- Applicant: Paul Kielar
- Agency: Norris McLaughlin & Marcus, P.A.
- Main IPC: H05B1/02
- IPC: H05B1/02 ; H05B3/20

Abstract:
A capacitive sensor electrode for controlling activation and deactivation of a PTC conductive ink heater can be deposited as part of the same layer of conductive ink used to form the open heater circuit pattern for the heater. A layer of conductive ink is deposited on an insulating substrate, with a first portion of the layer forming an open heater circuit pattern and a second portion of the layer forming a capacitive sensor electrode spaced from and electrically isolated from the first portion of the layer. A layer of positive temperature coefficient (PTC) conductive ink is deposited so as to bridge gaps between in the open heater circuit pattern while leaving the capacitive sensor electrode spaced from and electrically isolated from the layer of PTC conductive ink on the first portion of the layer of conductive ink.
Public/Granted literature
- US20150156819A1 HEATABLE SURFACE DEVICE Public/Granted day:2015-06-04
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