Patent · US Expired

Method for reinforcing a double-shell structure

US7118640B2 · kind B2 · utility

2Cited by

4References

5Claims

0Family size

Assignee

SAAB AB · SE

Inventors

Anders Westerdahl · Säter, SE
Max Krogager · Säter, SE
Nils-Gunnar Jaktlund · Säter, SE
Lars Lofgren · Staffanstorp, SE

Key dates

Filing date	Dec 9, 2002
Grant date	Oct 10, 2006
Priority date	—
Expiry date	Apr 15, 2023

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/49732
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

The invention concerns a method for reinforcing a double-shell structure in which a cellular core (2) is arranged between a first shell (5) and a second shell (6). In the method according to the invention, at least one cavity is formed in the double-shell structure from an opening in the first shell into the cellular core (2) so that the cavity substantially extends through the cellular core (2) to the second shell. Fixative (8) is injected into the cavity. A stiff bar (7) is introduced into the cavity, whereupon excess fixative (8) is allowed to pass out of the cavity. Finally, the fixative left in the cavity is cured.

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