Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
ELECTRICAL HEATER WITH THERMISTOR
Document Type and Number:
WIPO Patent Application WO2002032188
Kind Code:
A3
Abstract:
An electrical heater having a plurality electrodes disposed adjacently on a substrate in spaced apart relation and interconnected by a thermistor material, for example a positive temperature coefficient material. The electrodes each have at least one end portion and preferably two opposite end portions coupled to corresponding electrical terminal located at a common termination zone on the substrate. A spacing between adjacent electrodes may vary and adjacent electrodes may include interdigitated portions to vary the heat produced on selected portions of the substrate.

Inventors:
BULGAJEWSKI EDWARD
SHARP LARRY L (US)
Application Number:
US0130453W
Publication Date:
July 11, 2002
Filing Date:
September 28, 2001
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
ILLINOIS TOOL WORKS, INC.
SHARP, LARRY, L.
International Classes:
H05B3/03; H05B3/14; H05B3/26; H05B3/34; (IPC1-7): H05B3/26; H05B3/34
Domestic Patent References:
WO2000043225A22000-07-27
Foreign References:
GB2162409A1986-01-29
Other References:
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 10 31 August 1999 (1999-08-31)
Download PDF: