Chain conveyor track of high-grade and low-grade plastic

Year	Description
1997	Invention patented by George Johannes van Zijderveld on February 13th, 1997. Abstract: Upper part and return part of a bend segment for a chain conveyor provided with a conveyor chain movable over a track with at least one bend zone, which bend segment consists of at least one substantially U-shaped element made of plastic, which element comprises two legs forming the rails which the chain can move over or in, respectively, as well as a connecting portion connecting the legs of the element with each other, and which chain is provided with links each provided with a substantially rectangular bearing surface and a connection system situated under the bearing surface, wherein at least the portion of the legs of the bend segment that forms the guide for the bearing surfaces and connection systems of the chain links is manufactured from a first, high-grade type of plastic material, and the residual portion, if any, of the legs and the connecting portion are manufactured from at least a second, cheaper type of plastic material, for instance a recycled plastic material.
Source: selected by the editor from original sources.

Invention: Chain conveyor track of high-grade and low-grade plastic