F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
26/159, 138/95.2
F16L 55/04 (2006.01)
Patent
CA 1198032
A B S T R A C T 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 race 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. -15-
434251
Normand Trust (the)
Ridout & Maybee Llp
LandOfFree
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