Foraminous screening device and method for making same

Details Foraminous screening device and method for making same Foraminous screening device and method for making same

1977-09-19

1979-01-09

Lutter, Frank W.

Wells

Screens

Strip or rod

2104971, 210510, 156175, E03B 320, E21B 4308

Patent

active

041333799

ABSTRACT:
A foraminous screening device comprising a cylindrically tubular body having a plurality of spaced apart apertures therethrough and including a network of helically shaped ribs. The network includes first and second rib sets both having a plurality of mutually parallel and axially spaced ribs therein. The ribs of the first set have a clockwise orientation and are connected at points of intersection to the ribs of the second set which are oriented in a counterclockwise direction. Each of the ribs comprises a plurality of axially disposed, overlying bundles of tensed glass filament which are interconnected and embedded in a matrix of hardened synthetic resin. The ribs are interwoven at each point of intersection, and each bundle constitutes a portion of a continuous, elongated glass filament strand.

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patent: 3864182 (1975-02-01), Shobert et al.
patent: 3870637 (1975-03-01), Sanjo et al.

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