F - Mech Eng,Light,Heat,Weapons – 04 – B
Patent
F - Mech Eng,Light,Heat,Weapons
04
B
26/182, 138/95.2
F04B 11/00 (2006.01) F15B 1/14 (2006.01) F16J 12/00 (2006.01)
Patent
CA 1044120
Abstract of the Disclosure: A pressure accumulator and method of forming the same is disclosed which comprises the steps of advancing a cylindrical resilient metallic sleeve carrying a separator or bladder through the open mouth of a shell forming a part of the casing of the accumulator, the shell including on an inner wall surface thereof an annular groove defining an inwardly directed sharpened lip in the casing wall. The sleeve is positioned such that the outer circumference thereof, adjacent its upper end, is disposed in abutting relation to the said lip. An electrode is placed against the upper edge of the sleeve opposite the lip at a posi- tion remote from the deformable bladder. The shell section and the electrode are relatively rotated about an axis of revolution coincident with the longitudinal axis of the shell while electrical current is passed through the electrode, sleeve, and into the casing, the current flow being sufficient to induce a melting and consequent fusion between components of the metal forming the sleeve and lip portion, whereby the sleeve is secured to the shell section and a seal is defined by the annular fused por- tions of the shell and the sleeve. Thereafter the open mouth portions of the shells are welded together to define a completed casing. -1-
273267
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