US9731869 — Container

USPTO Abstract

A container ( 100 ), comprising a thread ( 120 ) arranged around an opening ( 110 ) for engaging a corresponding thread ( 120 ) of a closure ( 400 ), more than four retention members ( 140 ) arranged around the opening ( 110 ), each retention member ( 140 ) having an end-face for abutting a member ( 510 ) on an interior surface of the closure ( 400 ) to impede unthreading of the closure ( 400 ), the retention members ( 140 ) being arranged such that a tangent ( 170 ) to each end-face of the retention members ( 140 ) intersects a plane ( 160, 350 ) bisecting the container ( 100 ) at an obtuse angle ( 171 ), wherein the retention members ( 140 ) are arranged in first and second groups, the first group ( 141, 410 ) comprising one retention member ( 140 ) having an end-face substantially parallel to the plane bisecting the container ( 100 ), and the second group ( 142, 420 ) comprising two or more retention members ( 140 ), the first and second groups being arranged on one side of the plane ( 160, 350 ), each in a respective quadrant of the container ( 100 ), the teeth of the second group ( 142, 420 ) have a first inter-tooth spacing, and a second inter-tooth spacing is provided between an end-face of the retention member of the first group ( 141, 410 ) and a first retention member of the second group ( 142, 420 ), and the second inter-tooth spacing is larger than the first inter-tooth spacing.