Abstract: A paint can having a body with a curl at its upper open end and a plug having a downwardly open groove defined by an upright wall formed to fit within the open end of the body, a radial bight which in the closed position of the plug overlaps the curl and compress a sealing band thereagainst, and an outer flange with an inwardly offset lower portion which snaps under the curl, the lower edge of the flange having an inturned curl which is sprung into an annular groove in the body wall, the portion of the wall defining the said annular groove forming an annular internal rib on the body which enters a complimentary groove in the plug side wall. A handle is provided connected to a band encircling the body and abuts the lower edge of the outer flange of the plug in the closed position, the band sliding upwardly with the handle and extending into the body curl when the plug is removed.

Abstract: Apparatus and method for assembling a pair of thin-walled metal container counterparts which are brought together axially, are rounded and one inserted into the other substantially without deformation of either of the pair of counterparts so that the inner part is allowed to expand, after insertion, radially and both parts at their juncture are stressed in hoop tension for tightly embracing an adhesive interposed therebetween and thereby insure a good bond at the seam.