Abstract: The present invention relates generally to manufacturing metallic closures from a continuous coil of a pre-coated sheet metal material. More specifically, the present invention relates to manufacturing crown closures adapted for interconnection to a crown finish on a neck of a container using a continuous coil of pre-coated sheet metal material. In one embodiment, marketing indicia or product information may be applied to the closures after formation of the closures.

Abstract: In the area of manufacturing peel-off lids (28) out of lid rings with a peel-off foil (25) sealed on it, a part of the sealing surface (26) is bent up in the direction of the lid edge in order to tension the sealing surface with the peel-off foil. A clamping tool (30, 31) is provided in order to clamp the sealing surface with the peel-off foil and a pressing tool (35) in order to bend up the unclamped sealing surface section (26?).

Abstract: The invention describes an apparatus for stamping can lids or the like, having a bridge (10) supported on a frame and carrying stamping tools (1) actuated vertically in a continuously repeating manner, having a longitudinal conveying device (30) gradually transporting metal sheets (11, 12) under said tools (1) in each case with the latter opened, and having a transverse conveying device (20, 40) laterally displacing to a limited extent the metal sheet (11, 12) moving or moved longitudinally in each case, wherein a separately controllable transverse conveying device (20, 40) is arranged in a stationary position in each case on the feed and discharge side approximately symmetrically to the tools (1) close in front of and behind the latter, said transverse conveying device (20, 40) in each case carrying a driving roller pair (31, 32; 51, 52) as the longitudinal conveying device (30, 50), which delivers the metal sheet (11, 12) in a controlled clamping manner or releases it in a controlled manner.

Abstract: In at least one embodiment, an inward edge flange with an inserted sealing ring is arranged in the form of a valve seat at the free end of a constricted can neck on a can body. The inward edge flange holds the sealing ring without completely surrounding it, and the sealing ring is therefore accessible from the interior of the can lateral surface. After the crimping of a valve part, an inner stop is formed between the sealing ring and the connecting shell flange. Since the sealing ring is elastic, the connecting shell flange bears against the sealing ring without gaps along the entire circumference. The sealing ring also bears tightly against an inner contact surface of the inward edge flange of the can body.

Abstract: A method for forming a threaded pedestal cup including providing a pedestal with an interior cavity having an inner surface, and a top portion that has a larger diameter than a bottom portion; inserting a non-threaded arbor into the interior cavity to engage the inner surface of the bottom portion; and engaging the outer surface with a threading tool, wherein the engaging includes deforming the metal into threads.

Abstract: A method of forming a can end comprises the step of forming a substantially circular metal blank having a periphery and a center panel. An annular recessed panel is subsequently formed in the blank. The recessed panel has a first depth in relation to a substantially annular portion of the blank contiguously formed with the recessed panel. The substantially annular portion of the blank is then coined while the recessed panel is re-formed to a second depth in relation to the substantially annular portion of the blank. The second depth is greater than the first depth. Forming the can end in this manner minimizes warpage of the can end, and thereby allows the can end to be formed from a relatively thin sheet of metal.

Abstract: An easy open safety end having a central portion and a rim portion separated by a score line. A tab applies a force to the end adjacent the score line so as to shear the score line at opening. A circumferentially extending fold is formed in either the central portion or the rim portion, or both, to protect the user from being cut by the sharp edge the results upon shearing the score line. A first circumferential portion of the fold is tight, whereas a second portion, which is preferably proximate the tab is loose. The fold is displaced below a portion of the end adjacent the score line by a circumferentially extending gap. In the tight portion of the fold, the width of the gap is less than the thickness of the end, and preferably less than one half the thickness, whereas in the loose portion of the fold, the width of the gap is greater than the thickness of the end, and is preferably at least twice the thickness of the end.

Abstract: The present invention provides, in assembling an anti-vibration device having an inner cylinder, an outer cylinder, a rubber elastic member joining them and an intermediate cylinder fitted to the outer cylinder and internally forming a liquid chamber, an assembling apparatus for caulking an end of the outer cylinder while suppressing the occurrence of buckling without causing cracks, breakage or the like. This assembling device has a press-fit device to press-fit an internal unit joined with the inner cylinder and the intermediate cylinder through a rubber elastic member to the outer cylinder within a liquid tank, a caulking device to caulk an end of the outer cylinder of an assembly completed in press-fitting, and transporting means to transport the assembly from the press fit device to the caulking device. The caulking device can perform caulking in two stages of caulking.

Abstract: A resealable can end is provided including a neck member and hat member which can be sealed onto and removed from the neck member of the end, and is capable of containing product under pressure if desired. This end can be added, as by a conventional seam, to a metal container body to obtain resealing containment of partial contents retained in the container, and to provide an improved mouth construction (or pour opening) for better pouring and for comfortable direct drinking from the container. Also disclosed are improved methods of and apparatus for making such a resealable hat and-neck type-of container end.

Abstract: An apparatus for machining a web-shaped workpiece includes a workpiece supply for supplying workpiece rolls each of an elongate thin metal sheet, a processing machine for machining the elongate thin metal sheet into caps, a workpiece feeder for feeding the elongate thin metal sheet to the processing machine, and a product feeder for automatically separating the caps from scrap and feeding the caps to a product collecting mechanism. The apparatus is capable of efficiently and quickly producing various products from the elongate thin metal sheet.

Abstract: An apparatus and method is disclosed for an improved mounting cup for sealing with a container of an aerosol device. The container includes an annular bead extending about an opening in the container with the annular bead defining an internal surface contour having a generally partially circular cross-section. A mounting cup comprising a peripheral rim is formed for sealing with the annular bead of the container. The peripheral rim has an inner region contour substantially different in shape from the inner surface contour of the annular bead of the container. The peripheral rim is void of an outer region contour in contrast to a conventional mounting cup. The inner region contour of the peripheral rim engages with the inner surface contour of the annular bead to allow only a portion of the peripheral rim of the mounting cup to contact the annular bead of the container when the mounting cup is disposed on the container.

Abstract: A punch press has first and second sets of tooling mounted longitudinally of a press conveyor belt. The second set of tooling is located externally of the usual press columns. A second ram slidably mounted on the outside of the columns is driven by a connecting arm eccentrically mounted on a crankshaft extension. The second ram drives the upper tooling of the second tooling set in a reciprocating manner. The second ram can be operated out of phase with the main ram to reduce the total tonnage required of the press.

Abstract: An apparatus for reforming an end shell includes a stationary tooling assembly having a reform punch for engaging an interior surface of the central wall portion of the end shell. A reciprocating tooling assembly includes spring-loaded pressure pad complimentary to the reform punch for engagin the exterior surface of the central wall portion. A reform ring, mounted circumferentially about the pressure pad, includes an annular nose for fully engaging and supporting the exterior surface of the frustoconical wall portion of the end shell. At the bottom of the reforming stroke, the central wall portion is simultaneously supported by the reform punch and the pressure pad.

Abstract: A valve cup (60) for an aerosol dispensing can has a side wall (68) of lesser girth at the bottom than in an upper zone of which a portion is adapted to intensify the seal in the swaged seam between the cup curl (70') and the body curl (22). The side wall has for example a step (88) which acts as a fulcrum. In the swaged seam the seal is intensified in the area adjacent the step and down to a second point of contact where the side wall is deformed by the swaging tool (38) into contact with the body wall (1).

Abstract: A method of forming a container end piece from a sheet of material includes the steps of forming an inverted cup by wiping a peripheral edge of the material over a die core ring, inverting the cup by advancing a punch core into the material, thereby forming a flanged area, a central bottom area and a chuckwall interconnected thereto by a radiused portion. The radiused portion is initially formed by an annular nose on the punch core larger than the final radius. The punch core is then retracted and exerts force on the flanged area to shorten the chuckwall and reduce the radius by forcing the material in the chuckwall and radiused areas into the space between a die core and die core ring. A modified method includes supporting and aligning the radiused area with a contoured knockout sleeve between the die core and die core ring.

Abstract: An apparatus and method is disclosed for an improved mounting cup for sealing with a container of an aerosol device. The container includes an annular bead extending about an opening in the container with the annular bead defining an internal surface contour having a generally partially circular cross-section. A mounting cup comprising a peripheral rim is formed for sealing with the annular bead of the container. The peripheral rim has an inner region contour substantially different in shape from the inner surface contour of the annular bead of the container. The inner region contour of the peripheral rim engages with the inner surface contour of the annular bead to allow only a portion of the peripheral rim of the mounting cup to contact the annular bead of the container when the mounting cup is disposed on the container.

Abstract: A conversion press assembly for forming easy open beverage cans and a transfer belt conveyor therefor. The press assembly comprises a main press having tooling therein for forming the can ends and a can end transfer belt extends therethrough to carry can end blanks from a downstacker or other supply apparatus. Attached to the main press frame is an auxiliary, tab press having its own crankshaft but being driven off the same drive assembly as the main press. Strip stock is fed into the tab press wherein the tabs are formed, and the tabs, still in strip form, are then fed transversely into the main press for attachment to the can ends at a staking station. The transfer belt comprises a plurality of carriers mounted on a flexible belt wherein the carriers include flexible fingers for resiliently gripping the can ends.

Abstract: The disclosure relates to a novel shell such as used in the manufacture of can ends, and to a method and tools for making such a shell. A non-circular blank having rounded corners is cut from thin metal. The blank is oblong in a direction transverse to the grain of the metal. A first set of tools separates the blanks and forms a substantially flat central panel and an upward-extending chuck wall about the edge of the panel to produce a partially formed shell. The junction area between said panel and said chuck wall has a relatively large radius of curvature at this time. A second set of tools forms in the blank a lip extending outward from the upper end of the chuck wall and generally parallel to said panel; then the panel and the chuck wall are separately gripped, followed by relative movement between the panel and the chuck wall while wrapping the junction area around a forming punch to form a panel wall in said junction area extending upward from the inner part of said chuck wall.

Abstract: A press for converting ends for cans and the like is provided with a conveyor extending sideways through the press to carry shells for processing into can ends along an end converting path. Upper and lower conversion tooling is located along the end converting path at the top and bottom of the conveyor, defining a plurality of stations on opposite sides of the center of the tooling for working progressively on shells moved by the conveyor along the end converting path. First and second tab tooling, auxiliary to the main tooling means, is located on opposite sides of the conveyor extending transversely thereof and defining a tab forming path which bridges the end converting path. Opening tabs are formed from a strip of metal stock fed through the tab tooling and the strip with completed tabs is guided in a loop from the tab tooling back to a staking and attachment station on the end converting path for removal from the strip and attachment to the shells.

Abstract: Method and apparatus for forming end closures for containers complete with a peripheral curl for attachment to the top of a container without press modification includes a unique split die core ring. The method includes performing the operations of blanking the end panel against the cut edge, forming the chuckwall against the die core ring with a punch and punch shell and finally setting the chuckwall by wiping over the radius of the die core ring against a fluidly supported piston and simultaneously applying a curl to the peripheral edge of the panel prior to completion and removal from the press station. The method is performed by utilization of a split die core ring having inner and outer concentric segments, the outer segment of which is withdrawn as the punch shell advances to initiate a curl between the inner face of the punch shell and the outer face of the fixed inner segment of the die core ring.

Abstract: The present invention relates to improvements in the strength of ends used on metal beverage containers. Such ends generally comprise a central panel portion of a substantially planer character, a surrounding U-shaped sidewall having inner and outer legs, a curved intermediate portion integrally joining the inner leg to the U-shaped sidewall, and a peripheral curl extending from the outer leg for double seaming the end onto a can body. In accordance with the present invention, the intermediate portion and adjacent central panel portion are firmly supported by a die while a clamping force is placed on an annular band of the upper surface of the end at the intermediate portion. The clamping force is increased until metal flows inwardly and outwardly from the contact point resulting in a free compression doming of the center panel and an outward deflection of the inner leg.

Abstract: Apparatus is disclosed for making ends for metal or composite can bodies, which ends are first partially formed in a press to a cup-shaped configuration including a peripheral skirt and are then fed to a curling machine in which the skirt is contoured to facilitate application of the end to a can body. The press has a vertically reciprocable slide or slides which, together with an opposed portion of the press frame, support pairs of cooperable dies for blanking and partially forming can ends from sheet material fed horizontally into the press. Thereafter, the partially formed can ends are displaced into a horizontal plane vertically spaced from the sheet feed line, and a kicker member associated with each die set is operable in coordination with slide movement to impact against and propel the partially formed can end laterally and into a guide chute leading either to a curling machine or to an endless conveyor by which the partially formed can end is delivered to a curling machine.