Pipes and tubular conduits – With pressure compensators – Variable capacity chambers
Patent
1982-07-26
1984-02-07
Marcus, Stephen
Pipes and tubular conduits
With pressure compensators
Variable capacity chambers
220 85B, F16L 5504
Patent
active
044297181
ABSTRACT:
The present invention is directed to an accumulator device and method of making the same. The pressure vessel in accordance with the invention includes a shell portion having an open mouth and a cap member affixed over the open mouth after a bladder assembly has been secured within the shell portion of the pressure vessel. A characterizing feature of the invention resides in the provision of an exterior annular weld connecting the cap member to the outer wall portion of the vessel as well as an interior weld connection between the interior wall portion of the cap member and the upwardly directed end edge of the mouth of the pressure vessel. A further characterizing feature of the invention resides in the utilization of a metallic skirt member which functions to support the bladder and to define with the inner wall surface of the cap member an annular trough containing the weld which secures the cap member interior to the uppermost edge of the pressure vessel, whereby the possibility of weld fragments falling into the bladder causing damage the latter is minimized.
The invention is further directed to a novel method of manufacturing an accumulator device of the type described wherein the interior weld between the cap member and pressure vessel end face is effected by welding mechanism inserted through the opening in the cap member which will ultimately be used to support the gas charging valve assembly.
REFERENCES:
patent: 1901201 (1933-03-01), Taylor
patent: 3195576 (1965-07-01), Mercier
patent: 3500866 (1970-03-01), Greer
patent: 4288894 (1981-09-01), Jacobellis
Colvin Arthur B.
Marcus Stephen
The Normand Trust
Thronson Mark
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