Patent · US Expired

Article comprising foam plastic covered with an outer surface strengthening layer

US3940524A · kind A · utility

28Cited by

4References

10Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Peter Hoppe · Sunnyvale, US
Gustav Drouven
Helmut Leyer · Leichlingen, DE
Johann Muller · Burghausen, DE

Key dates

Filing date	May 28, 1974
Grant date	Feb 24, 1976
Priority date	—
Expiry date	May 28, 1994

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/249999
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

An article such as a structural member composed of a core of foamed material having bonded thereto for strengthening thereof, a laminate made up of an outer skin and a reinforcing insert. The reinforcing insert comprises at least one mat-loose fiber sheet combination with the mat disposed adjacent the skin and the loose fiber sheet disposed adjacent the foamed core. The material forming the skin penetrates from the skin, at least partially through the insert to an outer portion of the foamed core, and at least through the outermost mat so that the outermost mat is completely embedded in the material forming the skin.

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