Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – Longitudinally progressive helical winding means
Patent
1982-09-27
1983-11-15
Crosby, Gene
Adhesive bonding and miscellaneous chemical manufacture
Surface bonding means and/or assembly means therefor
Longitudinally progressive helical winding means
291635CW, 249178, 249184, 249177, B31C 300
Patent
active
044153961
ABSTRACT:
Filament reinforced cylindrical plastic screens having open slots defined by their surface wires which are of substantially different widths can be produced on a single helically finned mandrel. The slot widths are varied in accordance with the amount of wire-forming material placed in the generally V-shaped grooves defined by the mandrel fins. The grooves have a double relief angle so that the lower support portions of the surface wires will be formed so as to have a slightly tapered, radially elongated cross-section and the upper portions of the wires will have their sides at a substantially greater relief angle. This relationship permits a relatively small change in the total height of the wires to have a substantial effect on the width of the top portion of the wires, and thus, on the width of the slot openings which can be formed between adjacent wires.
REFERENCES:
patent: 3021241 (1962-02-01), Schneiderman et al.
patent: 3692607 (1972-09-01), Shobert
patent: 3864182 (1975-02-01), Shobert et al.
Clark Barry L.
Crosby Gene
Hoatson Jr. James R.
McLaughlin Linda
Page II William H.
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