Abstract: For years, can bottoms have been formed to provide structural integrity for cans, which include many different configurations. A novel profile for a container bottom is shown herein. The bottom structure includes a multi-radial domed central panel extending from its outside edge to a downwardly projecting substantially cylindrical inner leg portion. The inner leg portion extends to a generally semi-toroidal nose portion. The outside of the nose portion extends to an upwardly and outwardly inclined outer leg portion. The outer leg portion is connected to an outwardly inclined peripheral portion. The peripheral portion is connected to the lower end of the generally cylindrical sidewall portion.

Abstract: The invention includes a novel profile for a container bottom and method of manufacturing the improved bottom. The improvement involves the creation of an additional angled portion in the inner leg area of a container bottom during the formation of the bottom profile during the body making step. Known container bottom profiles have a single portion in the inner leg area after the bodymaking process. The inventive profile includes the following discrete portions starting at the nose of the container bottom and working inwards towards the central axis: a nose, a substantially linear lower leg portion projecting upwards from the nose, a separate angled portion between the lower leg portion and the dome inclined generally at an angle more towards the longitudinal central axis of the container than the angle of the lower leg portion, and a dome.

Abstract: The invention includes a novel profile for a container bottom and method of manufacturing the improved bottom. The improvement involves the creation of an additional angled portion in the inner leg area of a container bottom during the formation of the bottom profile during the bodymaking step. Known container bottom profiles have a single portion in the inner leg area after the bodymaking process. The inventive profile includes the following discrete portions starting at the nose of the container bottom and working inwards towards the central axis: a nose, a substantially linear lower leg portion projecting upwards from the nose, a separate angled portion between the lower leg portion and the dome inclined generally at an angle more towards the longitudinal central axis of the container than the angle of the lower leg portion, and a dome.

Abstract: A drawn and ironed can body has a cylindrical side wall and an integral end wall which closes one end of the side wall. The end wall includes a rim that generally curves inwardly from the side wall and a domed central section which closes the area circumscribed by the rim, all such that the rim forms the lowest portion of the can body. The rim is configured such that when the can body is subjected to elevated internal pressures, the rim deforms in a controlled manner, and this deformation causes the domed wall to move axially away from the opposite end of the can body without buckling, thereby increasing the volume of the can body.