Stock material or miscellaneous articles – Structurally defined web or sheet – Nonplanar uniform thickness material
Patent
1995-01-05
1996-08-06
Loney, Donald J.
Stock material or miscellaneous articles
Structurally defined web or sheet
Nonplanar uniform thickness material
428178, 428182, 428184, 428225, 428226, 428245, 156205, 156206, 264241, 264286, 264505, 5278311, 5278318, 5279311, B32B 100, B05C 3107, B31F 122
Patent
active
055432042
ABSTRACT:
A bi-directionally corrugated sandwich construction for use in applications equiring high-strength, light-weight components is disclosed. The sandwich construction comprises first and second face sheets positioned essentially parallel to and spaced apart from each other and having a core therebetween. The core has two sets of corrugated strips which have planar peaks and troughs positioned at regular intervals. The strips of the first set are positioned parallel to and spaced apart from each other with the peaks and the troughs in phase with each other such that parallel rows of troughs are formed perpendicular to the strips. The strips of the second set are positioned parallel to each other with the peaks and troughs in phase with each other, and are positioned perpendicular to the first set of strips in the rows of troughs formed thereby. The sandwich construction is made by forming a first piece comprising one face sheet and the first set of strips, forming a second piece comprising the other face sheet and the second set of strips, and then fixing the two pieces to each other so that the strips of the second set fit into the rows formed by the strips of the first set.
REFERENCES:
patent: 5128195 (1992-07-01), Hegedus
patent: 5162143 (1992-11-01), Porter
patent: 5348601 (1994-09-01), Ray
patent: 5393588 (1995-02-01), Weddendorf
Loney Donald J.
The United States of America as represented by the Secretary of
Verona Susan E.
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