Stock material or miscellaneous articles – Structurally defined web or sheet – Nonplanar uniform thickness material
Reexamination Certificate
2011-04-12
2011-04-12
Loney, Donald (Department: 1783)
Stock material or miscellaneous articles
Structurally defined web or sheet
Nonplanar uniform thickness material
C428S072000, C428S182000, C428S212000, C428S911000, C244S121000, C244S123120, C089S036110
Reexamination Certificate
active
07923096
ABSTRACT:
An impulse-absorbing structural component, particularly for an aircraft, has an impulse-absorbing layer and a covering layer applied thereto. The impulse-absorbing layer is made of a material that has a higher capacity for elongation at its breaking point than does the covering layer, and has a regular pattern of elevations and depressions. If a mass impacts on the covering layer, an intercept bag forms in the impulse-absorbing layer, and absorbs the kinetic energy of the mass. Viewed in the direction of the spread of the intercept bag, the structural component has structure beyond the impulse-absorbing layer, such that the formation of the intercept bag can take place without further interaction with the structural component.
REFERENCES:
patent: 4201819 (1980-05-01), Schenz
patent: 2004/0237763 (2004-12-01), Bhatnagar et al.
patent: 2005/0281987 (2005-12-01), Starke
patent: 101 29 576 (2003-01-01), None
patent: 10 2004 029 485 (2006-01-01), None
Crowell & Moring LLP
EADS Deutschland GmbH
Loney Donald
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