Double helix, spiral belts made therefrom

Details Double helix, spiral belts made therefrom Double helix, spiral belts made therefrom

1984-02-07

1986-03-11

McCamish, Marion C.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Embodying intertwined or helical component

245 6, 428 98, 428371, B32B 500, D04H 302

Patent

active

045754721

ABSTRACT:
Double helices each comprising two helix elements made from plastic wire with the longitudinal axes of the two helix elements extending in parallel and with the windings of the two helix elements intertwined, the double helices being formed by winding two plastic wires in parallel and without twist on a mandrel and being used to assemble a spiral belt by interengaging in zipper fashion a multiplicity of helices via meshing the windings of one helix with the windings of the next helix, and by inserting a pintle wire into the passage formed by the overlapping windings.

REFERENCES:
patent: 1773426 (1930-08-01), Haiss
patent: 1850859 (1932-03-01), Woodman
patent: 4345730 (1982-08-01), Leuvelink
patent: 4346138 (1982-08-01), Lefferts
patent: 4392902 (1983-07-01), Lefferts

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