Tapered and flanged rubber stopper

Details Tapered and flanged rubber stopper Tapered and flanged rubber stopper

B - Operations, Transporting

65

D

206/59

B65D 39/00 (2006.01)

Patent

CA 1255253

ABSTRACT OF THE DISCLOSURE A stopper for use as a closure in various applications comprises a cup-like member of flexible rubber or thermoplastic material. The stopper has an upper flange defining the stopper rim, a lower flange, a tapering nose portion beneath the lower flange forming the stopper base, and a wall portion between the flanges. The wall portion has an outer surface which tapers inwardly from the upper flange toward the lower flange at a specified angle. The tapered surface facilitates insertion of the stopper into an opening in a thin walled container for example, and allows the stopper to form an adequate seal in openings which are over-or undresize as compared to the nominal open- ing diameter, or which have other irregularities.

487064

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