Wide mouth tubular container construction

Claim 1

A wide mouth, screw top, hermetically tight, fiberboard tubular container comprising: a. a tubular body of adhered, helically wound plies, including at least two fiberboard body plies formed of strips of material and an inside or liner ply formed of a strip of paper-backed metal foil, one marginal edge of which is folded over upon the ply and overlaps the opposite edge of the strip to present opposed metal-to-metal faces, and an adhesive joining said faces, b. a first end member of molded plastic with a peripheral circular groove that receives an end of the tubular body and a mouth-forming flange extending in a direction opposite to that in which the groove opens, said groove bEing formed by inner and outer concentric flanges, the inner flange being substantially greater in length axially of the tubular body than the outer flange and a bottom portion of the groove having a diminished cross-sectional area, and said mouth-forming flange being externally threaded, inwardly recessed relative to said outer concentric flange yet substantially large in diameter with respect to the diameter of the tubular body, and terminating in a flat circular surface of greater width than the major portion of the flange, c. a second end member having a closure wall recessed with respect to the end of the tubular body opposite from that received in the first end member and a peripheral groove that receives said end of the tubular body, said second end member being of equal outside diameter to that of said first end member, d. a thermoplastic adhesive material within the groove of each end member sealing the juncture between the tubular body and the end members, and, e. a screw cap threadedly engaged with said first end member.