Electric heating – Heating devices – With heating unit structure
Reexamination Certificate
2006-05-23
2006-05-23
Evans, Robin O. (Department: 3742)
Electric heating
Heating devices
With heating unit structure
C219S545000
Reexamination Certificate
active
07049559
ABSTRACT:
The flexible PTC heating element according to the invention has one of the following constitutions. A portion of an electrodes and a PTC resistor is impregnated into a flexible substrate. A flexible substrate is made of resin foam or rubber material having a concave/convex shape formed on the surface. The flexible PTC heating element has an elongation deformation portion disposed to at least one of an electrode and a PTC resistor. A flexible substrate has adhesiveness and either a flexible substrate or a flexible cover material has an elongation control portion. Therefore, the flexible PTC heating element is highly flexible and excellent in vibration durability.
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English translation of International Search Report for PCT/JP2003/007600, dated Sep. 24, 2003.
Ishii Takahito
Kohara Kazuyuki
Terakado Seishi
Yasui Keiko
Yoneyama Mitsuru
Evans Robin O.
Patel Vinod
RatnerPrestia
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