Apparatus for bonding rubber O-Rings and extrusions

US7882879B2 · kind B2 · utility

Inventors

• Paul Stuart Patterson · Bethel, US
• George E. Warrin · North Merrick, US

Key dates

• Filing date: Jul 26, 2008
• Grant date: Feb 8, 2011
• Expiry date: Jul 15, 2029

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B29L2031/26
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

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.