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| Number | Title | Issue Date |
| 7871230 | Mold device, easy-open end, method of manufacturing easy-open end, and laminated steel sheet for easy-open end The mold apparatus has a pair of upper and lower molds being used for forming a score on one side surface of an easy-opening can end fabricated by a laminated metal sheet. The upper mold has a convex part for forming the score, and the cross sectional shape of the c... | 01/18/2011 |
| 7384227 | Method for fixing the position of a pull-tab with a steep anti rotation device formed from the panel of a sheet metal cover The invention relates to a method for forming a sheet metal lid. At least one projection is formed twice. First, the projection is shaped from a panel of the sheet metal lid, the pre-form being located near an attaching portion of a tab, but at a distance from the m... | 06/10/2008 |
| 7350392 | Can end A can end member has a center panel, a circumferential chuck wall, a transition wall, and a curl. The center panel is centered about a longitudinal axis and has a peripheral edge. The center panel has a peripheral edge. At least a portion of the peripheral edge incl... | 04/01/2008 |
| 7270246 | Non-circular can end with corner-mounted tab and tooling and a conversion press for providing same A non-circular can end for a container having walls which form an opening includes a corner-mounted pull tab opener secured to a severable panel portion by an integral rivet. The corner-mounted opener facilitates easy opening of the can end. A pair of generally para... | 09/18/2007 |
| 7021109 | Method and apparatus for manufacturing slip stopper An easy manufacturing method of a slip stopper, and apparatus therefor, that has a great slip stopping effect and can be used for a location where a problem occurs if a though hole is opened therein. After a protruding portion is formed on a steel plate, by using a ... | 04/04/2006 |
| 6837093 | Methods for making an easy-opening can end A method for making an easy-opening can end comprising providing an upper die and a lower die, at least one of the upper die and the lower die having a curved surface with a radius of 0.1 to 1 mm at the tip portion thereof, the other die having a flat surface at the... | 01/04/2005 |
| 6817819 | Easy-open container end The disclosed invention describes a container end that can be easily opened and does not rely on a conventional metal tab, riveted onto the end, thereby avoiding the problems and the cost associated with such a tab. The invention utilizes a traditional container end... | 11/16/2004 |
| 6772900 | Can end An end member for a container. The end member has a central panel, a circumferential chuckwall, and a transition wall. The central panel is centered about a longitudinal axis and has a substantially planar peripheral edge. The curl defines an outer perimeter of the ... | 08/10/2004 |
| 6688832 | Easy-open end and method of making A method of making an easy-open end for a container includes steps of forming first and second grooves in a panel of a can end blank, the grooves extending below the level of the panel to form inner and outer beads and forming a central bead in the panel ... | 02/10/2004 |
| 6685417 | Safety container end having improved opening characteristics 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 cen... | 02/03/2004 |
| 6524048 | Apparatus for manufacturing can lid A can lid of the fully-open type has a disk-shaped panel, a score notched endlessly in a surface of the panel along an outer circumferential edge of the panel, for forming an opening in the panel, and a tab fixed to the panel by a rivet. The tab is attach... | 02/25/2003 |
| 6435368 | Easy opening can end and method for fabricating the same An easy opening can end is provided whose can end panel is made of steel sheet having both sides coated with resin layers which each include at least one type of thermoplastic resin and which have elongation after break of 100% or more, tensile strength o... | 08/20/2002 |
| 6428261 | Method of forming a safety can end A method of making a safety easy-open end for a container includes forming a safety fold that includes an intermediate panel that overlies an end panel of a can end blank and is connected to the end panel by a first bead, a top panel that overlies the int... | 08/06/2002 |
| 6354453 | Vented container end apparatus and method A container end is provided so that upon opening, a generally triangular vent region is formed with an apex pointing rearwardly toward the head space to vent the container, e.g. during pouring. A container is provided that achieves a fast and smooth pour ... | 03/12/2002 |
| 6315511 | Method and apparatus for coining end panels of containers A method of coining the score line of container end panels having displaceable portions includes holding a portion of the end panel and coining the score line area thereof between the tapered peripheral edges of the ends of a coining punch and a coining d... | 11/13/2001 |
| 6161717 | End closure with reverse bead on opening panel The present invention provides an end closure for a container having a central panel wall with a displaceable opening panel defined by a frangible score and a non-frangible hinge segment. A tab is attached to the panel wall by a rivet, the tab having a no... | 12/19/2000 |
| 6079583 | Vented container end apparatus and method A container end is provided so that upon opening, a generally triangular vent region is formed with an apex pointing rearwardly toward the head space to vent the container, e.g. during pouring. A container is provided that achieves a fast and smooth pour ... | 06/27/2000 |
| 6044679 | Method for machining metal plate The present invention relates to a method for forming weakenings in a metal plate (8), comprising of: deforming the metal plate to a predetermined depth to form a weakening thinned portion along at least one line; and bending the metal plate along the lin... | 04/04/2000 |
| 6004089 | Method for making easy-open lids with improved scoring A process for forming an easy open lid comprising a central panel having a score strip with a score thereon, a crimping edge and a ring enabling the lid to be opened by perforation of the score. The score on the lid is formed from a metal lid outline supp... | 12/21/1999 |
| 5941117 | Die tool thermal control and tooling optimization apparatus and method A die tool monitor and analysis system identifies tooling changes and maintains tooling in an optimal position, thus maintaining the quality of the manufactured product within a desired tolerance band. A die tool force monitor and analysis system identifi... | 08/24/1999 |
| 5937726 | Method for cutting vertical incision in container cap A method for cutting a vertical incision in a plastic cap for containers. The plastic cap includes a flat top, a casing emanating from the flat top, and a guarantee area provided in an edge zone of the casing. The guarantee area has at least one holding s... | 08/17/1999 |
| 5938390 | Antifracture scores for easy open container walls An improved method and apparatus for scoring a metallic container wall, which facilitates scoring thin gauge, hard temper metal such as coated or uncoated aluminum to reduced score residuals wherein the scoring tool has a secondary antifracture score inde... | 08/17/1999 |
| 5927536 | Metal easy open can lid superior in can openability and process for production of thereof A metal easy open can lid, and a process for producing the same, wherein the can openability is improved and the occurrence of defects in the resin film at the time of shaping is eliminated whereby repair coating of the inner and outer surfaces are made u... | 07/27/1999 |
| 5860553 | Easy-open container end The invention, relating to an easy-open metal container end, places a portion of the metal of the tear panel (12), in the region where a score stop otherwise would be located, under compression by forming a short coined depression or bead (40) in the tear... | 01/19/1999 |
| 5813811 | Easy-access sheet metal container structures Scoreline, profiling and reinforcing features are provided for an easy-access sheet metal end closure (20) and an integral opener (44). An endwall panel (28) is formed so as to substantially eliminate flexing of the sheet metal during rupture of residual ... | 09/29/1998 |
| 5770290 | Easy open end of a metal-plastic construction An easy open end for food and beverage cans having reduced aluminum content is provided in an end having a metal polymer metal laminate construction. An opening panel as defined in the end body by a pair of first and second spaced apart score lines dispos... | 06/23/1998 |
| 5738237 | Easy open container end, method of manufacture, and tooling An easy open can end having an anti-missiling score integrally formed thereon, a method of further forming a can end to incorporate the anti-missiling score, and tooling for accomplishing the method.... | 04/14/1998 |
| 5692636 | Easy-open container end The invention, relating to an easy-open metal container end, places a portion of the metal of the tear panel (12), in the region where a score stop otherwise would be located, under compression by forming a short coined depression or bead (40) in the tear... | 12/02/1997 |
| 5688094 | Apparatus for joining sheet metal convenience-feature end closure to non-cylindrical sidewall of sheet metal can body Apparatus for use in chime seam joinder of a sheet metal convenience-feature end closure (133) to a sheet metal can body (153) having a non-cylindrical sidewall. Countersunk panel (112) with unitary chuck wall (100) interfit within an open end of the can ... | 11/18/1997 |
| 5590993 | Easy-access sheet metal container structures Scoreline, profiling and reinforcing features are provided for an easy-access sheet metal end closure (20) and an integral opener (44). An endwall panel (28) is formed so as to substantially eliminate flexing of the sheet metal during rupture of residual ... | 01/07/1997 |
| 5522521 | Pull tab type beverage container and method of making A pull tab type opening device is formed upon an insert metal strip mounted atop the can's lid. The opening device is affixed to and covers an opening in the can's lid by inter-locking rim portions on the strip and lid. Accordingly, the lid may be formed ... | 06/04/1996 |
| 5462396 | Convenience-feature sheet metal end closure and tooling apparatus Convenience-feature sheet metal end closure structure and tooling apparatus including a new scoring tool configuration (94) which enables a peripheral scoreline (102), which defines a separable convenience-feature endwall panel (112), to be located contig... | 10/31/1995 |
| 5328313 | Convenience-feature end closure for container body with non-cylindrical sidewall Methods and apparatus for forming a convenience-feature, sheet metal end closure structure (133) for a container body (153) having a non-cylindrical side wall. A new scoring tool (94) configuration enables a peripheral scoreline (102) defining a separable... | 07/12/1994 |
| 5252019 | Convenience-feature non-circular end closure with interrupted panel profiling Forming a convenience-feature, sheet metal end closure structure (180, 216) for a container having a non-cylindrical side wall (250). Scoring and back-up tooling enable peripheral scoring (102, 130, 142) on either surface of such end closure to define a s... | 10/12/1993 |
| 5219257 | Self-opening can lid with improved contour of score and means for making An easy-open container end includes a displacable panel defined by a score line having curved tails which is in parallel relationship with adjacent means for reinforcing, thereby reducing opening failures, while controlling tearing. A score die and anvil ... | 06/15/1993 |
| 5174706 | Process for producing a safe opening container lid A safe opening container lid having a bead side plate portion and a removable plate portion. The bead side plate portion has a first loop portion formed at the outer side of a tear line defining a removable plate portion, the loop portion being bent upwar... | 12/29/1992 |
| 4915562 | Rupturable can member as well as method and apparatus for its production A rupturable can member (10) of sheet metal has a pair of scorings (16) which define a tearing strip (18) laterally. Welded onto the tearing strip (18) is a tongue (20) which has a thickened portion (24) at its welded-on end (22). This thickened portion i... | 04/10/1990 |
| 4848623 | Disc removal end wall structure with safety features A full-open, disc-removal, end wall structure (25) with improved easy-open lever action and edge-protection features is disclosed along with methods of fabricating and opening. A back-scoreline (38, 52) is ruptured, by Class 2 lever action, upon lifting o... | 07/18/1989 |
| 4701090 | Method of manufacture of a can end with a push in vent tab and main tab A method of manufacturing can ends having a push down vent tab and a push down main tab, with recessed score lines under a double folded ridge of metal, where part of the score lines are broken to facilitate opening the cans. The method of manufacture use... | 10/20/1987 |
| 4685849 | Method for making an easy opening container end closure A closure for closing the open end of a container having contents therein which dissociate a gas therefrom. The closure is adapted to provide an opening for access to the contents. The opening is adapted for a snap assembly with a plastic cap to effect a ... | 08/11/1987 |
