Synthetic resin panels joined by an integral hinge having dual d

Details Synthetic resin panels joined by an integral hinge having dual d Synthetic resin panels joined by an integral hinge having dual d

1983-10-11

1984-07-31

Van Balen, William J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including variation in thickness

428126, 428167, 428192, 428217, B32B 302

Patent

active

044630468

ABSTRACT:
A dual-durometer integral synthetic resin hinge joins two relatively rigid synthetic resin sections. The hinge comprises a first ply of the same composition and hardness as the rigid panels and an overlying second ply of relatively softer synthetic resin material. The first ply of the hinge is scored to provide a fracture line adjacent the hinge axis.

REFERENCES:
patent: 3634182 (1972-01-01), Biglin et al.
patent: 4157413 (1979-06-01), Ruhl
patent: 4209043 (1980-06-01), Menzel
patent: 4391303 (1983-07-01), Holgersson

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