Abstract: A plastic case is provided. The plastic case has a first side; a second side attached to the first side; a third side attached to the first side and the second side; a first high-strength bond attaching the first side to at least one of the second side or the third side; and a first perforation in one of the sides that is attached by the first high-strength bond. The first perforation has a lower breaking strength than the first high-strength bond.

Abstract: A method for making a multi-layer plastic preform employs blow molding air into the multi-layer parison until an outer layer of the multi-layer parison rests against the preform mold and thereafter inserting a compression core sized to fit the pre-blown preform to smooth the inner layer of the blown parison and finish the preform. A system for making a multi-layer plastic preform includes a blow stem assembly having a device for introducing air into a multi-layer parison captured by a preform mold in a blow-mold operation, and a compression preform core attached to an end of a compression rod wherein when the compression preform core is retracted into the device, air can be blown into the preform mold and when, the compression rod extends in a stroke through the device, the compression preform core extends out of the device into the preform mold.

Abstract: A plastic corrugated case is provided. The case is made of at least one extruded sheet having, in an unfolded state, an extrusion direction and a transverse direction perpendicular to the extrusion direction. The sheet has a cross-sectional profile parallel to the transverse direction, the cross-sectional profile having a first section, and a second section different from the first section.

Abstract: A test device can acquire interior temperature, interior pressure, and interior volume data on a container exposed to conditions in a test throughout the test and can be used with a computer system.

Abstract: An apparatus for varying the thickness of an extruded material includes a hollow die body having an extruding direction and an extruding end with an opening, and a moveable plug arranged inside of the hollow die body. The moveable plug moves in the extruding direction within the opening. When material is extruded through the hollow die body in the extruding direction, the plug forms a void in the extruded material. The position of the moveable plug in the opening determines a thickness of the extruded material surrounding the void.

Abstract: A packaging case is provided for containing at least one container. The case has a first sheet and a second sheet. The first sheet forms a first vertical panel of the case having a first edge with a first bead and a second edge with a second bead, the second edge being opposite the first edge, a first horizontal panel of the case having a first edge and a second edge opposite the first edge, and a second vertical panel of the case having a first edge with a first bead and a second edge with a second bead, the second edge being opposite the first edge.

Abstract: A packaging case is provided for containing at least one container. The case has a first sheet and a second sheet. The first sheet forms a first vertical panel of the case having a first edge with a first bead and a second edge with a second bead, the second edge being opposite the first edge, a first horizontal panel of the case having a first edge and a second edge opposite the first edge, and a second vertical panel of the case having a first edge with a first bead and a second edge with a second bead, the second edge being opposite the first edge.