Research/Patents/US 5076982
US 5076982

COMPOSITE STIFF LIGHTWEIGHT STRUCTURE AND METHOD FOR MAKING SAME

Assignee

Filed

Oct 1, 1987

Granted

Dec 31, 1991

Location

LA CANADA CA US

Abstract

A method for making a lightweight structure having a high stiffness to weight ratio comprising providing a substrate defining at least a pair of outer surfaces spaced from each other, boring at least one hole through the structure to provide at least one void passage extending through the substrate between the outer surfaces, coating the outer surfaces of the substrate and the surfaces of the passage with a chemical vapor deposited material to a thickness of about one millimeter, plugging the void passage with a plug of a substrate material, and further coating the coated outer surfaces of the substrate and the ends of the plugs with a chemical vapor deposited material to form a continuous monolithic structure thereon.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Mar 11, 1988

Rescinded

Jun 13, 1988

Duration

3 months

Inventor

  • 1ROBERT A. HOLZL
Back to patent indexSource: USPTO 35 USC §181 secrecy order records