Measuring and testing – With fluid pressure – Clamp – plug – or sealing feature
Patent
1998-06-29
1999-08-03
Williams, Hezron
Measuring and testing
With fluid pressure
Clamp, plug, or sealing feature
G01M 304
Patent
active
059327987
ABSTRACT:
A device for leakage and pressure testing can bodies and can body-end closure combinations includes a can clamp assembly having an expandable resilient sealing ring over which an open end of a can body is slid. The can clamp assembly automatically draws the open end of the can body into a collar and then expands the resilient sealing ring outwardly to clamp and seal the can body in the assembly. Air is pumped into or drawn out of the can by an air passage formed through an actuating rod attached to the can clamp assembly for extending and retracting the sealing ring. For testing can bodies having no end closures, the device includes a second can clamp assembly which clamps and seals the other open end of the can body. A shaft attached to the second can clamp assembly is slidably and rotatably supported in an aperture of a support plate such that the can body is free to expand axially and to rotate about its axis during loading and testing of the can body.
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Bacon John Ellis
Rea Keith R.
Politzer Jay L.
Sonoco Development Inc.
Williams Hezron
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