US Patent 7882879 Apparatus for bonding rubber O-Rings and extrusions

Apparatus for bonding rubber O-Rings from cord stock, rubber extrusions and extruded tubing materials, consists of heated die-sets, holding fixtures, electronic module, assembly device, spring clamping and pneumatic clamping arrangement. The combined heated die-set and holding fixture are two separable heat conductive blocks having a common interface. Apertures are located across the interface having diameters or matching shapes of extrusions, these apertures are slightly less than the cord or extrusion dimensions, the rubber is axially mated in the open heated aperture, and will stay unlovable when the clamping device is closed. The electronic module controls both a heating and timing device for proper control of maintaining a constant temperature and accurate timing cycle.