Patent · US Expired

Foam material sound absorption

US4584232A · kind A · utility

48Cited by

2References

6Claims

0Family size

Assignee

Illbruck GmbH Schaumstofftechnik · DE

Inventors

Werner Frank · Bensberg, DE
Josef F. Irregeher · Leverkusen, DE

Key dates

Filing date	Sep 13, 1984
Grant date	Apr 22, 1986
Priority date	—
Expiry date	Sep 13, 2004

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T442/25
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

The present invention relates to a sound absorbing member comprising a fiber grid insert disposed between and bonded to two open cell foam panels.

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