초록 ▼

An end component for a spin welded container comprises a plug which is received within the container side wall for spin-welding thereto. An annular bead co-operates with a step on the wall to locate the plug. During welding, flash generated at the main weld area below the bead is prevented from esca

An end component for a spin welded container comprises a plug which is received within the container side wall for spin-welding thereto. An annular bead co-operates with a step on the wall to locate the plug. During welding, flash generated at the main weld area below the bead is prevented from escaping upwardly by the bead. A cavity is provided above the bead to retain any material which passes the bead or is formed by melting of the bead.

대표청구항 ▼

An end component and a cylindrical side wall for a container, adapted to be joined together by spin welding, wherein the side wall comprises a first cylindrical portion at the open end thereof which has a reduced thickness relative to an adjacent second cylindrical portion of the side wall and is jo

An end component and a cylindrical side wall for a container, adapted to be joined together by spin welding, wherein the side wall comprises a first cylindrical portion at the open end thereof which has a reduced thickness relative to an adjacent second cylindrical portion of the side wall and is joined thereto by one or more annular steps in the interior surface of the side wall, wherein the end component comprises a plug adapted to fit into the open end of the side wall having a first outer cylindrical surface adapted to engage the second cylindrical portion of the side wall, an outwardly extending annular step adapted to engage in its entirety the first annular step on the side wall immediately above the second cylindrical portion of the side wall, a second outer cylindrical surface adjacent the outwardly extending annular step on the opposite side thereof from the first outer cylindrical surface and adapted to engage the interior surface of the side wall immediately above the first annular step on the side wall, and a first radial flange adapted to overlie the end face of the side wall, and wherein an annular cavity is formed between the plug and the reduced first cylindrical portion of the side wall when the end component and the side wall are assembled.