Spin-bonded all plastic can and method of forming same

Details Spin-bonded all plastic can and method of forming same Spin-bonded all plastic can and method of forming same

B - Operations, Transporting

65

D

190/26.7

B65D 41/00 (2006.01) B29C 65/00 (2006.01) B29C 65/06 (2006.01) B65D 13/00 (2006.01) B29C 65/48 (2006.01) B29C 65/50 (2006.01)

Patent

CA 1324328

Abstract of the Disclosure The all plastic can includes an upwardly extending open mouth portion with an inwardly tapering exterior surface and a molded plastic end closure member having an integrally formed rim portion extending down- wardly therefrom. An outwardly tapering interior sur- face is provided on the rim and is inclined to mate with the inwardly tapering exterior surface of the open mouth portion of the can body. Relative rotation is imparted between the end closure member and the product filled can body so that spin-bond sealing connects the inwardly tapering exterior surface of the open mouth portion and the interior surface of the rim portion of the end clo- sure member. An integrally formed outwardly extending rib is provided on the inwardly tapering exterior sur- face of the open mouth portion to enhance the spin-bond between the end closure member and the can body. A bead of hot melt material is applied around the upper portion of the inwardly tapering exterior surface of the open mouth portion and serves to prevent entry into the interior of the product filled can body of any plastic dust particles generated by the spin-bonding of the end closure member to the can body. The spin-bonding of the end closure member provides a tamper evident closure for the can.

597830

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