Patent ID: 9440400
Filing Date: 2016-09-13
CPC Classification: B29C,B29K,E01C

Claim Text:
1. A plural-component, composite-material, highway dowel-bar making method comprising preparing an elongate core train having a long axis, and possessing, along that axis, endo-abutting, longitudinally alternating, (a) elongate, cylindrical cores, each core having a common, constant cross section at every location along the long axis, and (b) elongate, but shorter, cylindrical, fibre-reinforced plastic-resin end-plug blanks having opposite ends, and each end-plug blank having a constant cross section at every location along the long axis matching the constant cross section of the cores, using the core train as a longitudinally moving mandrel, pultrusion-forming a fibre-reinforced plastic-resin sleeve continuously and bondedly around the core train so as to produce a pultrusion-result, intermediate, dowel-bar product, and following said pultrusion-forming, cross-cutting the intermediate, dowel-bar product at longitudinal locations therein which are intermediate the opposite ends of end-plug blanks, and thereby forming completed dowel bars.