Metal fusion bonding – Including means to force or clamp work portions together... – Comprising tube aligning means
Reexamination Certificate
2004-11-10
2008-08-12
Stoner, Kiley (Department: 1793)
Metal fusion bonding
Including means to force or clamp work portions together...
Comprising tube aligning means
C228S049300, C228S050000, C228S060000
Reexamination Certificate
active
07410087
ABSTRACT:
A welding apparatus is disclosed for use during welding of a tubular metal nozzle to a tank's metal domed cap. The nozzle extends longitudinally between a base end for mating to the tank's cap at an aperture therein and a spaced-away terminal free end. Typically, the nozzle's longitudinal axis is aligned oblique to a normal axis for the domed cap through the aperture thereof. Such welding apparatus involves a clamping arrangement having an actuator extending between a lid and a spaced, opposed backup plate. The backup plate seats against at least a marginal periphery of the domed cap's inner concave surface surrounding the aperture thereof. The lid covers the nozzle's terminal free end. Releasably actuating the actuator increases clamping pressure between the lid and backup plate, thereby clamping the backup plate opposite the weld seam for at least purge purposes, and perhaps light-duty heat-sink purposes.
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Bay Jonathan A.
Stoner Kiley
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