Biaxially corrugated flexible sheet material

Details Biaxially corrugated flexible sheet material Biaxially corrugated flexible sheet material

1989-06-01

1991-04-16

Robinson, Ellis P.

Stock material or miscellaneous articles

Structurally defined web or sheet

Nonplanar uniform thickness material

428182, 428183, 428192, 428603, B32B 328

Patent

active

050081403

ABSTRACT:
A flexible biaxially corrugated sheet material is formed from a plurality of identical trapezium segments which are arranged in a plurality of long strips a single segment wide. Adjacent strips are mirror images of each other and connected along adjoining sides with the angles of the four corners of adjacent segments being alternately less than 360.degree. and greater than 360.degree. along the length of a strip such that the sheet material has an undulating configuration, and is inherently curved and cannot lie in a flat plane.

REFERENCES:
patent: 3168432 (1965-02-01), Elfving
patent: 3433692 (1969-03-01), Gewiss
patent: 3461013 (1969-08-01), Gewiss
patent: 3698879 (1972-10-01), Lucien
patent: 3992162 (1976-11-01), Gewiss
patent: 4516891 (1985-05-01), Wnuk et al.
patent: 4689261 (1987-08-01), Ahnsfrom

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