Method and apparatus for pressure filling and sealing a vessel

Package making – Gas filling and/or evacuating of receptacle and closing – Including soldering means

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Details

53 88, 53 98, 533292, B65B 3102, B65B 728

Patent

active

054956994

ABSTRACT:
The invention is directed to an apparatus for filling and sealing a canister having a weldable end wall. A weld head assembly includes a head having a welding electrode disposed within an opening for receiving a pressurized gas and defining a terminal end. The head further has a seal operably associated with the terminal end for engaging the end wall of the canister. A ball shuttle assembly includes a shuttle block having a passage for receiving the weld ball. The ball shuttle assembly further includes a device for positioning the shuttle block whereby the weld ball is in substantially coaxial alignment with the opening, and moving the weld ball into the opening of the weld head. The passage of the shuttle block is fluidly disassociated from the opening in the weld head when the seal is engaged with the end wall of the canister. The present invention further is directed to an apparatus for pressure testing a weldable vessel, which properly aligns a top flange of the vessel with an end face of the apparatus to thereby ensure proper sealing therebetween during the pressure testing operation.

REFERENCES:
patent: 619681 (1899-02-01), Dorsey
patent: 3057131 (1962-10-01), McKinley et al.
patent: 3212228 (1965-10-01), Merz
patent: 3247640 (1966-04-01), Miles et al.
patent: 3577696 (1971-05-01), Bock et al.
patent: 3983678 (1976-10-01), Bogler et al.
patent: 4255916 (1981-03-01), Blankenship et al.
patent: 4439976 (1984-04-01), Yuji et al.
patent: 4458734 (1984-07-01), Scholle et al.
patent: 4712353 (1987-12-01), Bethell et al.

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