Importance

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Abstract

A flexible belt is fabricated from a substantially rectangular sheet having a first edge joined to a second parallel edge to form a seam, the seam having one end which terminates at a third end and another end which terminates at a fourth edge, the third edge and fourth edge being substantially perpendicular to the first and second edges, the third edge having a notch at the seam end, the notch having a bottom parallel to the third edge, the bottom extending in each direction from the centerline of the seam to the beginning of an arcuate side for a distance of between about 100 and about 400 times the thickness of the web, the notch having a depth of between about 4 and about 20 times the thickness of the web, the notch having substantially identical arcuate sides defined by a radius of curvature having a length of between about 40 and about 200 times the thickness of the web, and one end of each of the arcuate sides being substantially tangent to the bottom of the notch.

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First Claim