B - Operations – Transporting – 65 – D
Patent
B - Operations, Transporting
65
D
B65D 41/08 (2006.01) B65D 41/04 (2006.01)
Patent
CA 2265033
A container made from a rigid, polymeric material, or from glass or metal, has a frusto-conical or cylindrical wall defining an outer thread and having an upper edge, which defines a sealing bead extending circumferentially and having a cross- section conforming to a circular arc of more than 180°. A closure made from a comparatively resilient, polymeric material has a circumferential recess adapted to receive the sealing bead with a snap fit so as to prove a liquid-tight seal. The closure has a frusto-conical or cylindrical skirt defining an inner thread. A reinforcing bead at a lower edge of the closure skirt clears the outer thread when the closure is snap-fitted or screwed onto the container and provides the closure skirt with sufficient hoop strength to prevent the inner thread from snapping upwardly past the outer thread upon relative rotation of the closure and the container to unscrew the closure from the container.
Fetherstonhaugh & Co.
Premium Plastics Inc.
LandOfFree
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