Pressure vessel

Claim 2

A pressure vessel of the type comprising a metal container, said container comprising two substantially cup-shaped shells having the rims of the mouth portions thereof of substantially the same diameter, an annular retainer member positioned in said container with at least a portion of the outer periphery of said retainer with at least a portion of the outer periphery of said retainer member against the inner surface of said two shells adjacent the rims thereof and retaining said rims in juxtaposition to each other and defining a space therebetween, said retainer member having an annular cavity in its outer periphery in transverse alignment with the space between the rims of said shells, weld means sealing the surface between said juxtaposed rims to bond said rims together, said annular retainer member having a transverse bore extending therethrough and aligned with the space between the juxtaposed rims of said shells and with said weld, said bore providing communication between said annular cavity and the interior of said container, a deformable partition mounted on said retainer member and dividing the interior of said container into two chambers, each of said shells having a port in communication with an associated chamber.

Claim 3

The combination set forth in claim 1 in which said annular supporting member is of outer diameter just slightly larger than the inner diameter of one of said shells so that it may fit therein by force fit with a portion of said annular retainer member remote from said first portion extending into the other shell.

Claim 4

The combination set forth in claim 1 in which said annular retainer member has a portion thereof positioned in one of said shells, means to secure said portion of said annular retainer member in said shell, said annular retainer member has the portion thereof remote from said secured portion extending into the other of said shells.

Claim 5

The combination set forth in claim 1 in which said juxtaposed rims are beveled to define a triangular space therebetween in cross section, the apex of said triangular space being at the exterior of the container.

Claim 6

The combination set forth in claim 4 in which the apex of said tRiangular space defines an annular opening exposed in said annular cavity and said retainer member has a transverse bore extending therethrough and in alignment with said annular space, said transverse bore providing communication between said annular cavity and the interior of said container.

Claim 7

The combination set forth in claim 1 in which the portion of the outer periphery of said annular retainer member on each side of said annular cavity defines an annular face, the outer diameter of one of said annular faces being slightly greater than the inner diameter of one of said shells so that it may fit therein by force fit, the portion of said annular retainer member on its outer periphery between the other annular face and the adjacent edge of the retainer member having an annular groove therein, the thickness of the edge portion of said retainer member being less than the thickness of the retainer member to define clearance between the outer periphery of said edge portion and the inner surface of the adjacent portion of said other shell and said deformable partition has a mouth having an inwardly extending bead adapted to seat in said annular groove in said retainer member with the portion of said partition adjacent said bead extending through the space defined between said rim and the inner wall surface of said container.

Claim 8

The combination set forth in claim 6 in which said deformable partition has an additional annular bead spaced from said first annular bead and adapted to be positioned inwardly of said annular rim.

Claim 9

The combination set forth in claim 1 in which said annular retainer member has one edge thereof formed integral with one of said shells adjacent the rim thereof, said annular retainer member extending outwardly beyond said rim of said shell, said retainer member having a portion of the outer periphery thereof extending outwardly from said first shell defining an annular face, said annular cavity in the outer periphery of said retainer member straddling said juxtaposed rims, the portion of said other shell adjacent the rim thereof encompassing said annular face with said rims being in juxtaposition and being spaced from each other, the portion of said annular retainer member in said other shell having an annular groove in its outer periphery with the adjacent edge of said retainer member being of thickness slightly less than the thickness of said annular face to define clearance between said rim and the adjacent inner surface of said shell, said deformable partition having an annular bead at its mouth positioned in said annular groove with the adjacent portion of said partition extending through the space between said rim and the adjacent surface of said container.

Claim 10

The combination set forth in claim 1 in which said annular retainer member has a pair of annular faces adjacent one edge thereof defining said annular cavity therebetween, the portion of said annular retainer member adjacent the other edge thereof having a pair of spaced annular grooves in its outer periphery, said first edge portion of said annular retainer member being positioned in one of said shells with the annular face adjacent said edge portion being secured in said shell, and with the portion of said annular retaining member including the other annular face extending outwardly from said first shell, said second shell encompassing said other annular face and the remaining portion of said retainer member, with the rims of said shells in juxtaposition and spaced from each other and aligned with said annular cavity, the other rim of said retainer positioned in said other shell being of thickness less than the thickness of said other annular face to define clearance between said other rim and the adjacent wall of said other shell, said deformable partition having a pair of spaced annular beads at its mouth positioned respectively in said annular grooves with the portion of said partition extending outwardly of said beads being bent around said other edge of said retainer member and then extending downwardly through said annular retainer member.

Claim 11

The combination set forth in claim 1 in which said annular retainer member has a pair of annular faces in its outer periphery defining the annular cavity therebetween, one of said annular faces being secured in one of said shells and the other annular face extending into the other of said shells, said juxtaposed rims being aligned with said annular cavity, said deformable partition having a thickened rim with an annular supporting member having an inwardly extending flange at its free end adapted to be positioned in said annular cavity with the adjacent portion of said annular supporting member extending between said annular face in said other shell and the adjacent wall surface of said container.