National Tool & Manufacturing Co.

Lincoln Mold and Die Corporation

Eagle Engraving and Mold Corp.

Daniel Mattia

Edward J Drozd

Vincent Comitini

John D Ellis

A mold assembly includes a stack of mold plates having a first plate and a second plate movable towards one another and away from one another in opening and closing directions between open and closed positions. The stack of mold plates includes a third plate disposed between the first and second plates. The mold assembly also includes a plate movement control device having at least one linkage. Each linkage may include a traveling element mounted to the third plate for movement along a predetermined path of motion relative to the third plate, a first arm having a first end pivotally connected to the traveling element and a second arm having a first end pivotally connected to the second plate and a second end pivotally connected to the traveling element. The at least one linkage is arranged so that upon movement of the first and second plates between the closed position and the open position, the third plate moves away from the first plate by a first predetermined distance and moves away from the second plate by a second predetermined distance.

Mold plate centralizing system

A tamper indicating closure comprising a one-piece molded plastic closure which threads onto the finish of a container such that when the closure is removed from the container, a tamper indicating band becomes separated from a lower end of a cap member of the closure. The tamper indicating band is joined to the closure along a weakened frangible line. The band includes a flexible Y-shaped annular flap segmented into tabs and attached to the lower end of the annular tamper band. When the closure is applied to the container, the annular band folds radially inward and up toward the cap member. The interior surface of the band and the first leg of the annular band include corresponding ratchet teeth which are designed to accommodate a varying degree of finish tolerances and which engage upon removal of the cap from the container. A second leg of the annular flap extends outwardly beneath a peripheral bead on the finish of the container when the closure is fully attached. Upon removal of the closure from the container, the second leg abuts underneath the peripheral bead to create resistance. The ratchet teeth on the band and flap are caused to engage with one another while the first leg wedges between the outside edge of the peripheral bead and the skin of the cap member. Further removal of the closure causes the tamper indicating band to sever from the cap member along the weakened line.

Tamper-evident closure apparatus

A tamper-evident closure includes a cap having an interior, threaded peripheral skirt, a tamper-evident ring disposed below the lower edge of the skirt and a plurality of elongate bridge members interconnecting the tamper-evident ring to the cap. Each bridge member includes a lower end forming a lower juction with the ring an upper end thinner than the lower end forming an upper juction with a surface of a recess formed in the skirt. Each bridge member is designed to break at the upper end thereof when the closure is rotated in a direction to remove it from the container, and each bridge member is inclined upwardly at an acute angle to the ring from the lower to the upper junction, in the direction in which the cap is required to be rotated to remove it from the container. Each of the bridge members has a stepped configuration for providing a bridge surface closely spaced to and facing the surface of the recess at which the upper junction is formed for engaging this latter surface when the cap is being rotated to secure the closure to the container.

Growing community of inventors

Union, NJ, United States of America

Daniel Mattia