Method of making a pleated structure having a pleated memory sha

Details Method of making a pleated structure having a pleated memory sha Method of making a pleated structure having a pleated memory sha

1996-07-22

1998-09-08

Walker, W. L.

Liquid purification or separation

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Supported, shaped or superimposed formed mediums

2104935, 156204, 156227, 156474, 55521, 55528, 493415, 493941, B01D 2706

Patent

active

058040730

ABSTRACT:
A method for making a pleated structure having a pleated shape memory includes providing an elongated material having a longitudinal axis; pleating the material to form a pleated structure having a plurality of substantially parallel pleats substantially parallel to the longitudinal axis; folding the material along a plurality of axes substantially perpendicular to the longitudinal axis to form folds and provide a folded structure defining wall portions between the folds and face portions at the folds; heating the material in the pleated structure so as to provide a heated material; and cooling the heated material so as to provide the material with shape memory toward the pleated structure.

REFERENCES:
patent: 4410427 (1983-10-01), Wydeven
patent: 4940500 (1990-07-01), Tadokoro et al.
patent: 4961974 (1990-10-01), Jones
patent: 5053066 (1991-10-01), Hassenboehler
patent: 5531235 (1996-07-01), Hassenboehler, Jr.

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