Stock material or miscellaneous articles – Structurally defined web or sheet – Including aperture
Patent
1976-08-09
1978-01-24
Ansher, Harold
Stock material or miscellaneous articles
Structurally defined web or sheet
Including aperture
291635R, 291635F, 156252, 156263, 156629, 156634, 156644, 156656, 428138, 428304, 428596, B32B 310, B32B 1500, B01D 2522
Patent
active
RE0295248
ABSTRACT:
A porous laminate is disclosed consisting of a plurality of lamina each having a parallel slot series formed therein, stacked with the respective adjacent slot series overlapping and extending transversely to each other and bonded to each other to form the porous laminate. Variations disclosed include tapering the slots in one or more of the lamina to create a variable porosity and the inclusion of tying sections at intermediate points along the slots for reinforcement purposes.
The disclosed process includes the steps of photoetching metal sheets to create the slot pattern, stacking a plurality of the sheets together with the slots in adjacent sheets extending transversely to each other, diffusion bonding the stacked sheets to form a porous laminate, and calendering the finished sheet to modify or adjust permeability.
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Ansher Harold
Facet Enterprises Inc.
VanOphem Remy J.
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