Sheet material and production method thereof

Details Sheet material and production method thereof Sheet material and production method thereof

1984-03-09

1985-05-21

Cannon, James C.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

156 79, 339 59M, 339 61M, 339DIG3, 427 58, 427358, 427373, 427435, 4283084, 4283179, 4283191, B32B 310, B32B 520, H01R 1348

Patent

active

045186480

ABSTRACT:
A sheet material adapted for producing pressure sensitive elements includes an electrically conductive net-shaped member having projecting and recessed portions, and an electrically insulating layer in which the net-shaped member is buried such that only the projecting and recessed portions thereof are exposed out of the insulating layer, planar members are further provided on both sides of the insulating layer, while each of the planar members is provided with a resistance layer deposited on a surface thereof facing the insulating layer, so that when a depressing force is applied across the planar members, the resistance layer deposited thereon is brought into contact with the exposed portions of the net-shaped member. A method for producing the sheet material is also defined within the scope of the invention.

REFERENCES:
patent: 3795037 (1974-03-01), Leittmer
patent: 3934959 (1976-01-01), Gilissen
patent: 3954317 (1976-05-01), Gilissen et al.
patent: 4128683 (1978-12-01), Nomura et al.
patent: 4199209 (1980-04-01), Cherian et al.
patent: 4199637 (1980-04-01), Sado
patent: 4209089 (1980-06-01), Day
patent: 4263356 (1981-04-01), Nomura et al.
patent: 4402562 (1983-09-01), Sado

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