Patent ID: 8220128

Claim:
A method of assembling a container comprising an inner tube contained within an outer tube, the method comprising: providing an outer tube having a closed bottom, an open top and a side wall extending therebetween, said side wall defining an inner surface and an outer surface; providing a spacing element adjacent the open top of the outer tube, said spacing element including a central opening extending therethrough and at least one extending member extending within the open top of the outer tube; inserting an inner tube within the outer tube through the central opening of the spacing element, said inner tube having a closed bottom, an open top and a side wall extending therebetween, said side wall defining an inner surface and an outer surface, at least a portion of said inner tube having an external diameter which is smaller than an internal diameter of the outer tube to form an annular gap therebetween; wherein at least a portion of the spacing element extends between the inner surface of the outer tube and the outer surface of the inner tube during assembly to allow for venting of air from the annular gap to atmospheric pressure during insertion of the inner tube within the outer tube; and removing the spacing element from between the inner tube and outer tube after venting of air from the annular gap.