Patent ID: 6982051
Filing Date: 2006-01-03
Classification: B29C,B29K,B29L,B32B,Y10T

Abstract:
1. A method for fusing a first conduit portion to a second conduit portion, comprising the steps of: (a) removably positioning a first terminal edge of the first conduit portion in an opposing relationship with a first terminal edge of the second conduit portion; (b) facing the first terminal edge of the first conduit portion and the first terminal edge of the second conduit portion; (c) aligning the first terminal edge of the first conduit portion with the first terminal edge of the second conduit portion; (d) melting at least a portion of the first terminal edge of the first conduit portion and the first terminal edge of the second conduit portion; (e) engaging the melted terminal edge of the first conduit portion with the melted terminal edge of the second conduit portion; and (f) maintaining pressure between the engaged terminal edge of the first conduit portion and the terminal edge of the second conduit portion, thereby creating a fused joint area; wherein at least one of the first conduit portion and the second conduit portion comprises a polyvinyl chloride material, and wherein the gauge pressure for the engaging step is calculated utilizing the following formula: wherein MGp is machine gauge pressure, π is 3.1416 circle formula, OD