Patent ID: 6278092
Filing Date: 2001-08-21
Classification: A43B,F16L,H01C,H05B

Abstract:
A lagging device comprising:a) a flexible insulating pad having a first surface;b) a flexible anode and a flexible cathode located on the first surface of the flexible insulating pad, the anode having a plurality of elongated anode portions, and the cathode having a plurality of elongated cathode portions interleaved with, but spaced from the plurality of elongated anode portions;c) a plurality of flat PTC ceramic resistors, each having an anode and a cathode on a same side thereof, and each being mounted between and in contact with an adjacent interleaved elongated portions of the flexible anode and flexible cathode; and,d) a flexible isolation layer on the first surface of the flexible insulating pad so as to cover all of the plurality of PTC ceramic resistors.