Envirex Inc.

John A Fillar

Thomas J Casper

James H Wiegand

A link assembly for a lightweight, non-metallic, conveyor or load transmission chain having significantly greater strength and other performance improvements compared to previous non-metallic chain links is disclosed. Each link assembly includes: a pair of identical sidebars each comprised of high-strength filamentary material wound in an elongated loop configuration and fixed in a matrix of hardened resin; a connecting pin having a stiff reinforced composite core and a skin-tight sleeve of non-abrasive material; low friction bushing means between the sidebars and connecting pin; and retaining means for holding the assembly together. Methods of making the unique sidebar and connecting pin components are also disclosed.

Method for manufacturing a high strength, non-metallic transmission chain

A link assembly for a lightweight, non-metallic, conveyor or load transmission chain having significantly greater strength and other performance improvements compared to previous non-metallic chain links is disclosed. Each link assembly includes: a pair of identical sidebars each comprised of high-strength filamentary material wound in an elongated loop configuration and fixed in a matrix of hardened resin; a connecting pin having a stiff reinforced composite core and a skin-tight sleee of non-abrasive material; low friction bushing means between the sidebars and connecting pin; and retaining means for holding the assembly together. Methods of making the unique sidebar and connecting pin components are also disclosed.

High strength, non-metallic transmission chain

A link assembly for a lightweight, non-metallic, conveyor or load transmission chain having significantly greater strength and other performance improvements compared to previous non-metallic chain links is disclosed. Each link assembly includes a pair of identical sidebars each comprised of high-strength filamentary material wound in an elongated loop configuration and fixed in a matrix of hardened resin and a connecting pin having a stiff reinforced composite core and a surrounding sleeve of low friction wear resistant material.

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New Berlin, WI, United States of America

John A Fillar