Filled composite structure

Details Filled composite structure Filled composite structure

1999-06-04

2000-04-11

Williamson, Michael A.

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

428 364, 428 345, 52722, 52723, 52724, 52725, B29D 2200

Patent

active

060485949

ABSTRACT:
A filled structure includes a fiber reinforced resinous hollow structure having a tensile strength of at least 30,000 psi, an inside surface forming a boundary which encloses a space, and a hard core within the space. The hard core has a density of at least 35 pounds per cubic foot and a compressive strength of at least 1500 psi. The hard core is formed from a mixture of particulate cementitious material and liquid such that when the mixture hardens, the hard core is mechanically locked to the inside surface of the hollow structure.

REFERENCES:
patent: 3957250 (1976-05-01), Murphy
patent: 4157263 (1979-06-01), Gaines et al.
patent: 4939037 (1990-07-01), Zion et al.
patent: 5770276 (1998-06-01), Greene
patent: 5800889 (1998-09-01), Greene

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