Stock material or miscellaneous articles – Hollow or container type article – Polymer or resin containing
Patent
1974-09-11
1976-05-11
Lesmes, George F.
Stock material or miscellaneous articles
Hollow or container type article
Polymer or resin containing
29183, 428167, 428179, 220 9A, 60 3932, B32B 330, B32B 1500
Patent
active
039565432
ABSTRACT:
This device comprises a flexible sheet member having cross convolutions oriented 45.degree. to the shear vector with spherical reliefs at the convolution junctions. The spherical reliefs are essential to the shear flexibility by interrupting the principal stress lines that act along the ridges of the convolutions. The spherical reliefs provide convolutions in both directions in the plane of the cross-convolution ridges.
REFERENCES:
patent: 3224621 (1965-12-01), Upthegrove
Humphries L. Lee
Lesmes George F.
Rockwell International Corporation
Thibodeau Paul J.
Upton Robert G.
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