Patent ID: 6540500
Filing Date: 2003-04-01
Classification: B29C

Abstract:
Apparatus for forming a bend in a linear section of thermoplastic pipe, the apparatus comprising:an anvil having a concave working surface which defines an arc of at least the bend angle of the bend to be formed in said pipe section and which is transversely arced at a radius essentially the same as the radius of said pipe, said anvil further including a collar for retaining an end of said pipe section adjacent said working surface; and a support frame for said anvil; a flexible mandrel of substantially the same internal diameter as said pipe and of at least the same length as said pipe section; and a stepped track for supporting said mandrel and pipe section, a higher portion of which supports said mandrel and the lower portion of which supports said pipe section, the difference between said higher and lower portions being about the same as the wall thickness of said pipe section, and wherein axes of said mandrel and pipe section are aligned when in position on said tack; wherein said anvil is pivotally mounted to said support frame with said working surface of said anvil adjacent said lower portion of said track and aligned therewith.