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...When G.G. Hubbard learned of his future son-in-law's invention, he called it "only a toy." His daughter was engaged to a young man named Alexander Graham Bell.
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| Number | Title | Issue Date |
| 7100789 | Metallic beverage can end with improved chuck wall and countersink The present invention describes a beverage can end which utilizes less material and has an improved internal buckle strength based on the geometric configuration of a chuck wall, inner panel wall and central panel, and which utilizes an inwardly oriented concave arc... | 09/05/2006 |
| 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 |
| 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 |
| 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 |
| 6266992 | Modular tooling system for lane tooling in a conversion press and method for the use thereof A modular tooling system for use in combination with a conversion press has an upper base member adapted to be removably mounting into the conversion press, a tooling holder, a tooling insert and means for retaining the tooling insert within the tooling h... | 07/31/2001 |
| 6206222 | Resealable closure on seamed can end An easy-open, reseable closure assembly for a beverage can (10) comprises a metal lid (12) and two threadedly connected molded plastic closure elements (40, 60) with engageable annular reseal surfaces (46, 76). The lid is scored (30) to define a circular ... | 03/27/2001 |
| 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 |
| 5832770 | Process for further treating a closure end made of sheet A process for further treating a closure end made of sheet material is provided, particularly for beverage cans, in which an annular fringe region is radially coupled between the central panel portion and a radius of curvature coupled to a core groove wit... | 11/10/1998 |
| 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 |
| 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 |
| 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 |
| 5074732 | Method of producing a can end from metal A method is described for producing a can end from metal with at least one opening tab to be pushed in towards the inside portion of the can end. The method of this invention comprises the steps of forming a bulge which is directed upwards, partial punchi... | 12/24/1991 |
| 4994009 | Easy open can end method of manufacture An improved easy open can end having a retained tear strip extending diametrically partly across the can end defined by a score line, and a graspable pull tab adjacent and outside the open end of the score line. The pull tab is attached to the can end by ... | 02/19/1991 |
| 4909407 | Can lid with easy-open tab A stamped and scored one-piece container lid with an integral push-in tear tab has a tab-defining score line formed with a bottom wall, an inclined first side wall and a second side wall opposite to the first side wall and which is upset onto the bottom w... | 03/20/1990 |
| 4802603 | Easy open can end A can end (1) made from metal for cans whose contents is under inside pressure is provided with at least one opening tab (4) partly punched from the end leaving a hinge area (6) and a relative aperture (2) formed by the partial punching, with the opening ... | 02/07/1989 |
| 4753018 | Multivent system for dryer exhaust A method of making a knockout plug in a sheet of metal is provided. The method comprises the steps of: shearing the sheet metal along a majority of a perimeter of a geometric shape so that a plug is produced retained to the sheet metal by at least one ret... | 06/28/1988 |
| 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 |
| 4585140 | Can lid with integral push-in tab A stamped and scored one-piece container lid with an integral push-in tear tab has a ridge embossed in the tear tab and a push location to the rear of the ridge. When the push location is depressed, the tab tears along its score line and rotates into the ... | 04/29/1986 |
| 4579495 | Environmental retained tab ends This invention relates in general to new and useful improvements to easy opening container ends. More particularly, it relates to a new improved method of forming a hinged connection between a tab and an end panel.... | 04/01/1986 |
| 4556354 | Process for production of bonded can of key-opening type Disclosed is a bonded can of the key-opening type comprising a coated metal blank and a seam formed by lap-bonding outer and inner end edge portions of the coated metal blank to each other by a tape of a thermoplastic resin adhesive, wherein the adhesive ... | 12/03/1985 |
| 4530631 | Pull tab for easy open can end-method of manufacture thereof An easy open can end having a retained tear strip extending diametrically partly across the can end defined by a score line, and a graspable pull tab adjacent and outside the open end of the score line. The pull tab is provided with a nose portion to init... | 07/23/1985 |
| 4397345 | Manufacture of rims for the wheels of road vehicles Apparatus for the manufacture of a rim for the wheel of a commercial load carrying or passenger service vehicle, which apparatus comprises in combination bending apparatus for bending steel strip and butt welding the edges thereof to form a cylindrical co... | 08/09/1983 |
| 4343119 | Beveled lobe anti-skid grating An improved anti-skid tread or grating (10) design is provided with gripping members or rosettes (30) having a plurality of upstanding individual lobes (36) which are configured in such a way and project high enough to provide an excellent gripping surfac... | 08/10/1982 |
| 4328694 | Outlet tube and method An outlet tube comprising a unitary material sheet folded into a rectangular shape and having overlapping ends secured with rivets, the outlet tube further including flanges extending outwardly from one end of the walls of the rectangular shape, and notch... | 05/11/1982 |
| 4280427 | Easy open can end This application is concerned with a can end comprising an end plate and a tab, the tab and end plate being so adapted to one another that by bending of the tab up by one desiring to open the can, the tab forces a section of the can to pivot inward, thus ... | 07/28/1981 |
| 4213324 | Punch press and method for making can ends with closures A punch press comprising multi-station, progressive die tooling, for providing metal covers with easy-open closures, is fitted with a work transfer mechanism facilitating successive positioning of the covers, the tooling employing features thereof to prec... | 07/22/1980 |
| 4186678 | Method of making easy-open, push-tab end for metal containers There is disclosed an easy-opening convenience end for generally cylindrical containers in which an end closure has a push tab or gate panel formed out of the thickness of the end closure and displaced beneath the plane of the end closure with a folded pr... | 02/05/1980 |
| 4033275 | Method of forming an opening tab in sheet metal container end closures A bulge, formed in and cut from an end closure central panel, is reformed into an opening tab by reducing the bulge height and its sidewall angle to extend its brim horizontally outward under the rim of the opening from which the bulge is cut, and the bri... | 07/05/1977 |
| 3999494 | Method and apparatus for forming openings in a can end and applying a sealant to the inside surfaces of the openings A press-forming operation to form opening portions in can ends having a curled portion for seaming and an operation of applying a sealant on the opening portions have been coupled into an integrated system, thus allowing them to be performed consecutively... | 12/28/1976 |
| 3983827 | Tab scoring for containers and lids Method and apparatus for scoring one or more lines into the surface of a plastic part such as a container or container lid as the part is being formed. A forming press includes a plurality of die members adapted for movement within, and with respect to, a... | 10/05/1976 |
| 3980034 | Method of producing an easy-opening closure This specification discloses a method of forming an easy-opening closure of the type wherein there is overlap between the closure member and the surrounding container member comprising forming a bulge in the hinge area of the closure and subsequently flat... | 09/14/1976 |
