초록 ▼

A tamper evident flip top pouring closure is designed for use with a corresponding container. A tamper evident flip top pouring closure and container in combination has a closure with a screw thread thereon together with interlocking means and a container with the corresponding screw thread and corr

A tamper evident flip top pouring closure is designed for use with a corresponding container. A tamper evident flip top pouring closure and container in combination has a closure with a screw thread thereon together with interlocking means and a container with the corresponding screw thread and corresponding interlocking means. The interlocking means prevents the removal of the closure from the container once the closure is installed on the container. The interlocking means on the closure are a series of tabs that are connected to the closure and extend inward at an angle. The interlocking means on the closure are two sets of saw-teeth having a gentle slope on one side and a steep slope on another side. The closure is then installed on the container and cannot be removed because the tabs abutt a steep slope of the saw-teeth and will not override the saw-teeth in a reverse direction.

대표청구항 ▼

[ I claim:] [1.] A tamper evident flip top pouring closure for use with a container having a neck with an opening therein, said neck having an outer surface with a screw thread and interlocking means extending radially outward therefrom, said closure comprising a tubular body having a throat portion

[ I claim:] [1.] A tamper evident flip top pouring closure for use with a container having a neck with an opening therein, said neck having an outer surface with a screw thread and interlocking means extending radially outward therefrom, said closure comprising a tubular body having a throat portion insertable into said opening and a skirt spaced outwardly from said throat portion and connected thereto for disposition circumferentially outside of said neck, an extension of said throat portion defining a pouring spout, a sealing diaphragm mounted transversely of said throat portion to close said throat portion, a tear-member connected to said diaphragm for tearing out said diaphragm by pulling on said member, said closure having a flip top connected to said tubular body by a hinge, said flip top having an open position and a closed position, said flip top covering said throat portion in said closed position, said skirt having a screw thread and interlocking means extending inwardly on an inner surface thereof, said screw thread of said skirt corresponding to said screw thread on said container, said interlocking means on said skirt being located to correspond to interlocking means on said container, said interlocking means of said closure being a plurality of tabs, said tabs being flexible laterally to ride over said interlocking means of said container when said closure is turned on to said container and being stiff longitudinally to interlock with said interlocking means of said container when said closure is attempted to be turned off said container.