3851681 is referenced by 29 patents and cites 6 patents.

A papermaking fabric woven from synthetic monofilaments is shown in which the warp threads pass under one and then over three weft threads in a repeated pattern, and the weft threads alternate in diameter to develop a fabric wear surface that is uneven with the average level of the smaller diameter weft threads being receded into the fabric to a greater degree than for the larger weft threads.

Title
Woven papermaking drainage fabric having four shed weave pattern and weft threads of alternating diameter
Application Number
05/352,320
Publication Number
3851681
Application Date
April 18, 1973
Publication Date
December 3, 1974
Inventor
Egan Cleon J
Agent
Quarles & Brady
Assignee
Albany International
IPC
D21f 01/10
D03D 25/00
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