Abstract: Cup lubricating process and apparatus in which cup-shaped can bodies are controllably conveyed in spaced relationship to each other through a lubrication application chamber. Lubricant is atomized to particle sizes permitting them to be gas borne and introduced into such chamber from a plurality of locations about the travel path for can bodies. Apertures in the bottom wall of such chamber direct lubricant particles directly into the open ends of such can bodies for flow impingement deposition on internal surfaces thereof. Provision is made for augmenting surface deposition by electrically charging at least a portion of the gas-borne lubricant particles in such chamber and electrically grounding can bodies individually during passage through such chamber. Endless loop conveyor means are provided with adjustable features enabling a travel path to be adapted to differing dimension can bodies.

Abstract: Composite-coated flat-rolled steel can stock processing and product for fabrication of sheet metal cans, in particular for three-piece, welded or cemented side seam cans. Single or double-reduced, low carbon, flat-rolled steel of a gage in the range of about 55 to 110 pounds per base box is flash coated with tin (0.05 #/bb), which is alloyed with the steel base metal; at least 0.20 #/bb of tin is added to one surface only, flow brightened and water quenched; chemical treatment chrome oxide coating of about 100 to 750 milligrams per square foot is added to both surfaces and an organic coating of 2.5 to 15 milligrams per square inch is added to the surface which is free of flow-brightened tin for disposition internally of a can fabricated from such coated can stock. The equivalent of quarter-pound and higher coating weight tinplate protection is provided while decreasing tin requirements and maintaining three-piece can fabrication properties not available with coating metal substitutes for tin.

Abstract: Cup lubricating process and apparatus in which cup-shaped can bodies are controllably conveyed in spaced relationship to each other through a lubrication application chamber. Lubricant is atomized to particle sizes permitting them to be gas borne and introduced into such chamber from a plurality of locations about the travel path for can bodies. Provision is made for augmented external surface deposition by electrically charging at least a portion of the gas-borne lubricant particles and electrically grounding can bodies individually during passage through such lubricant application chamber. Endless loop conveyor means are provided with adjustable features enabling a travel path to be adapted to differing dimension can bodies.

Abstract: One-piece sheet metal can body and end closure structure for assembly of a two-piece can with full-panel convenience feature and protection for residual scoreline metal edge after opening; a tamper-proof non-breakable container with full access for various types of food is provided. A stepped-flange rim on the can body and a U-shaped groove in the end panel, for submerging the scoreline, shield severed edge metal.

Abstract: Continuous in-line control of work product is provided in draw-redraw processing of flat-rolled sheet metal, coil coated on both its surfaces with organic coating, to finished one-piece can bodies. Drawing of a sheet metal blank is controlled to present flange metal at the open end of the cup-shaped work product which is disposed with its closed end wall in the sheet metal line. The drawn work product is pneumatically controlled to separate the sheet metal line from the can line eliminating random accumulation of work product. Redrawing operations are carried out closed end up to present flange metal which stabilizes in-line movement of work product. Electrostatic lubrication to protect organic coating and facilitate forming is carried out prior to each redrawing operation; in-line movement of work product is controlled during such lubrication.

Abstract: Convenience feature wall panel (36) and integral opener (52) structure providing Class 1 and Class 2 lever action severance of scored sheet metal. In a beverage can embodiment, a U-shaped tab (40) positioned on the can end wall with its closed end contiguous to peripheral chime seam metal (32) is moved from the original contour of the wall panel to provide a pour opening (94). The movable tab, along with the integrally attached opener, is retained by sheet metal at the open end (46) of the U-shaped movable tab which is unitary with the remainder of the wall panel.