Abstract: A contact heating platen assembly includes an upright central standard, a plurality of inclined linking members pivotally mounted to the standard, and to a pair of opposed platen carriers on opposite sides of the standard, each traversing an arcuate path relative to the standard. Each of the carriers supports a heating platen and an electrical heating element for heating the platen. The carriers are spring biased into a collapsed position against the standard, but movable to an extended position relatively remote from the standard. To complete a fusion bond, a pair of workpieces are positioned on opposite sides of the platen assembly, each with a fusible surface portion positioned to be engaged by one of the platens when the assembly is extended. The assembly is extended whereby the heated platens engage the fusible surface portions. The platens are maintained against the surface portions until they are fused, then allowed to retract or collapse under the spring force.

Abstract: An apparatus for forming a bond between a plastic fill spout and a plastic container immediately after forming a bore through the container, includes a tool with a bore forming platen at its leading edge, a trailing end platen at its opposite end, and an intermediate spacer of an insulative material for thermally isolating the bore forming and trailing end platens. A longitudinally reciprocable fixture supports the spout in a longitudinal orientation to move the spout toward and away from the container, and a second fixture supports the tool in axial alignment with the spout and for longitudinal movement toward and away from the container, with the bore forming platen nearest the container. The tool is moved against the container and the bore forming platen heated, then moved through the container wall to provide the bore.