Abstract: A closing ring for a container and lid combination for securing the lid to the container includes a ring body having first and second free ends to be drawn together in order to secure the lid to the container. A link clevis and a lever clevis are welded to the free ends. A link is pivotally connected to the link clevis. A lever is pivotally connected to the lever clevis. The linkage arrangement is completed by connecting the link to the lever at a third pivot connection. A movable locking projection is assembled to the lever clevis for engaging the lever during an opening attempt wherein this engaging prevents the opening of the ring body until the movable locking projection is moved out of its engaging position relative to the lever.

Abstract: A plastic lid for closing a container neck opening according to one embodiment of the present invention comprises a lid body surrounded by an annular rim, the annular rim defining a gasket channel having an open portion at one end opening toward the container neck opening and including a closed base at an opposite end. The annular rim defines a pair of raised annular beads positioned adjacent the open portion of the channel for capturing a gasket received within the gasket channel. The corresponding gasket may be either a preformed gasket that is inserted into the channel or a foamed-in-place gasket that is formed in the gasket channel. No pretreatment of the lid is required for the installed gasket to be retained in the gasket channel.

Abstract: The fabrication of an injection-molded plastic part using a blow-mold resin includes a first step of modifying an injection-molding machine by enlarging resin passages in order for that machine to accept a more viscous resin. The next step in the fabrication process is to provide a mass of blow-molded resin heated to a viscosity suitable for the modified injection-molding machine. A third step is to introduce the mass of blow-molded resin into the modified injection-molding machine. The fourth step is operating the modified injection-molding machine in a manner consistent with the normal operation for injection-molding of the desired plastic part. A part of the present invention is the specific method of modifying component parts of the injection-molding machine so that those component parts are compatible with a more viscous plastic resin.