Channell Commercial Corporation

Prc Composites, LLC

Hartwick Professionals, Inc.

John Aubrey Neate

Edward J Burke

Robert H Gwillim

Thomas Atkins

Brian Anthony Beach

Craig Alan Newman

Richard Clark Powell

Tom Ray Feguer

Steven Edward Wallace

A method of manufacturing a fiber reinforced composite material lid for an utility vault including mixing an unsaturated polyester thermosetting matrix in to a resin paste, compounding the resin paste into a fiber reinforced composite material, maturing the compounded fiber reinforced composite material, cutting the matured compound into a charge pattern, molding the charge pattern in a mold cavity of a heated mold under low pressure to form the lid and cooling and machining the lid. The mold includes a cavity die and a core die having a shear angle for interfacing the core die within the cavity die and a steam pot for heating the cavity die and the core die, wherein the lid is molded between the cavity die and the core die and removed from the mold by a lid ejection mechanism.

Mold for manufacturing a fiber reinforced polymer utility vault lid

Method of manufacturing a thermoset polymer utility vault lid

The present invention provides a hydroforming system and method eliminating the need for a solid steel die (or mold) set operated by a conventional high tonnage hydraulic press. The invention utilizes a fabricated or bar-stock die set integrated to a series of adjustably placed hydraulic cylinders to create a self-contained operating unit. The system can include a die set, a plurality of activation and clamping hydraulic cylinders, a computer control system and reinforcement and support structures. The die set can be a mounted lower die half and an adjacent movable upper die half, each constructed of individual pieces of plate or bar stock. The computer control system interprets incoming linear position data from all of the activation hydraulic cylinders and monitors and controls hydraulic fluid flow into and out of each cylinder. The system can also have a plurality of support pillars affixed to the lower die half.

Hydraulic pressure forming using a self aligning and activating die system

Growing community of inventors

Niles, MI, United States of America

John Aubrey Neate