Endless shaped article
AssigneeDsm IP Assets B.V.
InventorsRigobert BOSMAN, Dietrich WIENKE, Johanna Gertruda KERSJES, Jozef Siegfried Johannes HOMMINGA, Roelof MARISSEN, Christiaan Henri Peter DIRKS
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Abstract
Endless shaped articles include at least one strip of material forming a plurality of convolutions of the strip of material, the strip having a longitudinal axis, wherein each convolution of the strip comprises a twist along the longitudinal axis thereof, wherein the twist is an odd multiple of 180 degrees. Methods to manufacture the article, and its use as sling, loop, belt or chain link are also disclosed.
Claims29
An endless shaped article comprising:
- at least one single strip of material which forms a plurality of convolutions, wherein
- the single strip of material has a longitudinal axis, and wherein
- each of the convolutions of the single strip of material comprises a twist along the longitudinal axis such that each twist is an odd multiple of 180 degrees.
An endless shaped article comprising:
- a single strip of material comprised of a length of woven fabric of ultrahigh molecular weight polyethylene (UHMWPE) yarn having opposing ends, wherein
- the single strip of material is formed into a coil having at least four convolutions to provide at least four respective substantially overlapping layers that are superimposed upon one another, wherein
- the coil has a longitudinal axis and a twist along the longitudinal axis which is an odd multiple of 180 degrees, and wherein
- the opposing ends of the single strip of material are overlapped along a first portion of the length of the strip in each of the at least four convolutions, and wherein
- the overlapped opposing ends are connected to one another.
A method for making an endless shaped article comprising the steps of:
- a) providing a single strip of material having a longitudinal axis,
- b) twisting a first length of the strip of material by an odd multiple of 180 degrees about the longitudinal axis thereof,
- c) forming a closed loop with the twisted first length by joining the length with a remaining portion of the strip of material, and
- d) superimposing a further length of the strip of material onto the closed loop to provide a plurality of twisted convolutions of the strip.
Dependencies are inferred from the claim text.