Metal working – Means to assemble or disassemble – Puller or pusher means – contained force multiplying operator
Patent
1987-03-10
1988-10-11
Echols, P. W.
Metal working
Means to assemble or disassemble
Puller or pusher means, contained force multiplying operator
29132, B21B 2700
Patent
active
047760702
ABSTRACT:
The roller has a roller body having a small electrical resistivity, a bonding layer formed substantially uniformly on the outer peripheral surface of the roller body, a lower insulating layer provided on the bonding layer; a heat generating layer provided on the lower insulating layer and a ceramic matrix and a metallic resistance layer, constituted by a metal dispersed in the ceramic matrix, the metallic resistance layer extending substantially continuously in the lengthwise direction of the roller, a heat generating layer, an upper insulating layer provided on the heat generating layer, a protective layer formed on the upper insulating layer so as to prevent offset of the toner images, an electrode layer formed on each end of the roller and adapted to connect the heat generating layer to an external power source; and side protective layers covering at least the side surface of the heat generating layer, and the side surfaces and the axially outside surfaces of the lower insulating layer.
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Iimura Tsutomu
Shibata Ryoichi
Cuda Irene
Echols P. W.
Hitachi Metals Ltd.
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