Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1993-08-30
1994-12-27
Aftergut, Jeff H.
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
156169, 156172, 156175, 156187, 220414, 220589, 220590, B65H 8100
Patent
active
053762002
ABSTRACT:
A method of manufacturing a fiber reinforced, resin matrix, tank with an integral fitting, such as an internally threaded pipe connection, bulkhead door or manhole entryway. A thread form tool having a cylindrical bore and a rounded pattern thread forming outer surface at one end is provided. The tool is secured to a drive shaft extending through the tank forming mandrel with the thread forming end adjacent to the mandrel. A second, thread is formed on the opposite end of the threat form tool opposite the tank mandrel and carries a consolidation nut. A consolidation washer rides on a wider cylinder surface of the thread form tool intermediate the two threaded ends. At least one fabric doily or band is placed over the thread forming tool rounded threads and the tank mandrel is filament wound with high strength fibers impregnated with a resin in a conventional manner, with filaments overlapping the rounded thread area. When sufficient filaments have been wound, the consolidation nut is tightened, driving the spacer and consolidation washer towards the filaments on the rounded thread region, consolidating the windings and forming a flat seating area substantially perpendicular to the mandrel axis. The resin is then cured and the thread forming tool assembly is removed.
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Aftergut Jeff H.
Duncan John R.
General Dynamics Corporation
Gilliam Frank D.
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