Patent · US Expired

Fiber compound material

US4581284A · kind A · utility

29Cited by

3References

12Claims

0Family size

Assignee

Dornier GmbH · DE

Inventors

Klaus-Peter Eggert · Zimmern, DE
Manfred Flemming · Markdorf, DE
Siegfried Roth · Markdorf, DE
Horst Schneider · Meersburg, DE

Key dates

Filing date	Feb 28, 1984
Grant date	Apr 8, 1986
Priority date	—
Expiry date	Feb 28, 2004

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T442/67
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

A fiber compound material of individual layers of superposed fiber plies such as glass fiber prepregs which are joined together by a matrix of a resin and a hardener and act as a load carrying structure to absorb electromagnetic waves. Radar beam-absorbing fillers, for instance iron powder or soot, are included, in concentrations varying from the outside to the inside, in the individual plies of the fiber compound material.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.