Patents by Inventor Paul Robert Dunwoody
Paul Robert Dunwoody has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240066585Abstract: A horizontal can necking machine assembly includes a plural of main turrets and a plural of transfer starwheels. Each main turret includes a main turret shaft, a main gear mounted on the main turret shaft, a pusher assembly, and a die capable of necking a can body upon actuation of the turret shaft. Each transfer starwheel includes a transfer shaft and a transfer gear mounted on the transfer shaft. The main gears are engaged with the transfer gears such that lines through the main gear center and the centers of opposing transfer gears form an included angle of less than 170 degrees, thereby increasing the angular range available for necking the can body. The main turrets and transfer starwheels may operate to neck and move at least 2800 cans per minute, and each pusher assembly may have a stroke length relative to the die that is at least 1.5 inches.Type: ApplicationFiled: October 6, 2023Publication date: February 29, 2024Applicant: Crown Packaging Technology, Inc.Inventors: Paul Robert Dunwoody, Ian K. Scholey
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Patent number: 11883872Abstract: A method of reducing a thickness and increasing a height of a cylindrical wall of a metal cup to form a can body comprises positioning a wall-ironing punch inside the cup, moving an annular wall-ironing die axially over the closed end of the cup towards the open end of the cup, but not beyond the open end of the cup, in order to iron the cylindrical wall from the closed end up to a position axially spaced from the open end and moving the wall-ironing die back in an opposite direction to remove the can body from the die. Methods of altering a diameter of one or more regions of a can body are also disclosed.Type: GrantFiled: June 7, 2021Date of Patent: January 30, 2024Assignee: Crown Packaging Technology, Inc.Inventor: Paul Robert Dunwoody
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Patent number: 11338970Abstract: A closure assembly comprising a two-part closure having a metal panel or disc (2) and a ring (3), and a container such as a glass jar (20). The ring (3) is substantially cylindrical with an axially upwardly extending sidewall and has a radially inwardly extending lower edge. The jar (20) terminates in a radially outwardly extending beaded rim (16) and the disc (2) has a curled circumference (8) such that this curl (8) co-operates with the beaded rim (16) of the container to provide a primary seal. In one example, in a metal ring (3), the lower edge is curled with equally spaced lugs (13) on the skirt wall. In a plastic ring, the upper rim feature may be omitted.Type: GrantFiled: April 15, 2019Date of Patent: May 24, 2022Assignee: Crown Packaging Technology, Inc.Inventor: Paul Robert Dunwoody
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Publication number: 20210291249Abstract: A method of reducing a thickness and increasing a height of a cylindrical wall of a metal cup to form a can body comprises positioning a wall-ironing punch inside the cup, moving an annular wall-ironing die axially over the closed end of the cup towards the open end of the cup, but not beyond the open end of the cup, in order to iron the cylindrical wall from the closed end up to a position axially spaced from the open end and moving the wall-ironing die back in an opposite direction to remove the can body from the die. Methods of altering a diameter of one or more regions of a can body are also disclosed.Type: ApplicationFiled: June 7, 2021Publication date: September 23, 2021Inventor: Paul Robert Dunwoody
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Patent number: 11059086Abstract: A method of reducing a thickness and increasing a height of a cylindrical wall of a metal cup to form a can body comprises positioning a wall-ironing punch (40) inside the cup, moving an annular wall-ironing die (24) axially over the closed end of the cup towards the open end of the cup, but not beyond the open end of the cup, in order to iron the cylindrical wall from the closed end up to a position axially spaced from the open end and moving the wall-ironing die (24) back in an opposite direction to remove the can body from the die (24). Methods of altering a diameter of one or more regions of a can body are also disclosed.Type: GrantFiled: January 9, 2017Date of Patent: July 13, 2021Assignee: Crown Packaging Technology, Inc.Inventor: Paul Robert Dunwoody
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Patent number: 10751784Abstract: A horizontal can necking machine assembly includes a plural of main turrets and a plural of transfer starwheels. Each main turret includes a main turret shaft, a main gear mounted on the main turret shaft, a pusher assembly, and a die capable of necking a can body upon actuation of the turret shaft. Each transfer starwheel includes a transfer shaft and a transfer gear mounted on the transfer shaft. The main gears are engaged with the transfer gears such that lines through the main gear center and the centers of opposing transfer gears form an included angle of less than 170 degrees, thereby increasing the angular range available for necking the can body. The main turrets and transfer starwheels may operate to neck and move at least 2800 cans per minute, and each pusher assembly may have a stroke length relative to the die that is at least 1.5 inches.Type: GrantFiled: March 22, 2018Date of Patent: August 25, 2020Assignee: Crown Packaging Technology, Inc.Inventors: Paul Robert Dunwoody, Ian K. Scholey
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Publication number: 20200254506Abstract: A horizontal can necking machine assembly includes a plural of main turrets and a plural of transfer starwheels. Each main turret includes a main turret shaft, a main gear mounted on the main turret shaft, a pusher assembly, and a die capable of necking a can body upon actuation of the turret shaft. Each transfer starwheel includes a transfer shaft and a transfer gear mounted on the transfer shaft. The main gears are engaged with the transfer gears such that lines through the main gear center and the centers of opposing transfer gears form an included angle of less than 170 degrees, thereby increasing the angular range available for necking the can body. The main turrets and transfer starwheels may operate to neck and move at least 2800 cans per minute, and each pusher assembly may have a stroke length relative to the die that is at least 1.5 inches.Type: ApplicationFiled: April 28, 2020Publication date: August 13, 2020Inventors: Paul Robert Dunwoody, Ian K. Scholey
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Publication number: 20190241332Abstract: A closure assembly comprising a two-part closure having a metal panel or disc (2) and a ring (3), and a container such as a glass jar (20). The ring (3) is substantially cylindrical with an axially upwardly extending sidewall and has a radially inwardly extending lower edge. The jar (20) terminates in a radially outwardly extending beaded rim (16) and the disc (2) has a curled circumference (8) such that this curl (8) co-operates with the beaded rim (16) of the container to provide a primary seal. In one example, in a metal ring (3), the lower edge is curled with equally spaced lugs (13) on the skirt wall. In a plastic ring, the upper rim feature may be omitted.Type: ApplicationFiled: April 15, 2019Publication date: August 8, 2019Inventor: Paul Robert Dunwoody
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Publication number: 20190022730Abstract: A method of reducing a thickness and increasing a height of a cylindrical wall of a metal cup to form a can body comprises positioning a wall-ironing punch (40) inside the cup, moving an annular wall-ironing die (24) axially over the closed end of the cup towards the open end of the cup, but not beyond the open end of the cup, in order to iron the cylindrical wall from the closed end up to a position axially spaced from the open end and moving the wall-ironing die (24) back in an opposite direction to remove the can body from the die (24). Methods of altering a diameter of one or more regions of a can body are also disclosed.Type: ApplicationFiled: January 9, 2017Publication date: January 24, 2019Inventor: Paul Robert DUNWOODY
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Patent number: 10144550Abstract: A beverage can end for pressurized contents includes a score that defines a pair of The lobes have longitudinal axes that are not mutually parallel and in some embodiments substantially perpendicular to improve flow.Type: GrantFiled: March 14, 2014Date of Patent: December 4, 2018Assignee: Crown Packaging Technology, Inc.Inventors: Paul Robert Dunwoody, Christopher Paul Ramsey, Garry Richard Chant
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Publication number: 20180208376Abstract: A metal closure (1) comprising a panel (10) and a depending side wall (14) terminating in a cut edge (15), the inner surface of the closure having a plurality of coating layers applied (21-27) such that at least one of the coating layers extends to the cut edge and the coating thickness at and in proximity to the cut edge is less than the thickness at one or more other regions of the inner surface.Type: ApplicationFiled: July 8, 2016Publication date: July 26, 2018Inventor: Paul Robert DUNWOODY
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Publication number: 20180207707Abstract: A horizontal can necking machine assembly includes a plural of main turrets and a plural of transfer starwheels. Each main turret includes a main turret shaft, a main gear mounted on the main turret shaft, a pusher assembly, and a die capable of necking a can body upon actuation of the turret shaft. Each transfer starwheel includes a transfer shaft and a transfer gear mounted on the transfer shaft. The main gears are engaged with the transfer gears such that lines through the main gear center and the centers of opposing transfer gears form an included angle of less than 170 degrees, thereby increasing the angular range available for necking the can body. The main turrets and transfer starwheels may operate to neck and move at least 2800 cans per minute, and each pusher assembly may have a stroke length relative to the die that is at least 1.5 inches.Type: ApplicationFiled: March 22, 2018Publication date: July 26, 2018Inventors: Paul Robert Dunwoody, Ian K. Scholey
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Patent number: 9968982Abstract: A horizontal can necking machine assembly includes a plural of main turrets and a plural of transfer starwheels. Each main turret includes a main turret shaft, a main gear mounted on the main turret shaft, a pusher assembly, and a die capable of necking a can body upon actuation of the turret shaft. Each transfer starwheel includes a transfer shaft and a transfer gear mounted on the transfer shaft. The main gears are engaged with the transfer gears such that lines through the main gear center and the centers of opposing transfer gears form an included angle of less than 170 degrees, thereby increasing the angular range available for necking the can body. The main turrets and transfer starwheels may operate to neck and move at least 2800 cans per minute, and each pusher assembly may have a stroke length relative to the die that is at least 1.5 inches.Type: GrantFiled: April 1, 2016Date of Patent: May 15, 2018Assignee: Crown Packaging Technology, Inc.Inventors: Paul Robert Dunwoody, Ian K. Scholey
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Patent number: 9968983Abstract: A modular method of forming a two part metal closure comprises a lug forming module for forming lugs 3 on a ring 1, a panel curl module, and an assembly module which fixes the panel inside the ring while allowing axial movement of the panel for opening.Type: GrantFiled: April 16, 2012Date of Patent: May 15, 2018Assignee: Crown Packaging Technology, Inc.Inventor: Paul Robert Dunwoody
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Patent number: 9687904Abstract: There is disclosed herein a method of forming a can end comprising: holding a peripheral portion of a blank between inner (60, 70) and outer (80, 90, 100) peripheral tool sets; drawing a central portion of the blank against an outer center panel tool (80) having a central region and a sloping peripheral edge (84) extending to a peripheral wall (86) by moving the outer center panel tool (80) inwardly relative to the peripheral tool sets to form a drawn can end shell (10); and reforming the can end shell (10) against an inner center panel tool (60) having a central region and a peripheral region by moving the inner center panel tool (60) outwardly relative to the peripheral tool sets to reform the drawn central portion to have a center panel defined by the central region of the inner center panel tool (60) and a recessed reinforcing structure extending around the center panel, wherein the sloping peripheral edge (84) of the outer center panel tool (80) has a convex radius of curvature of 2 mm or more and 30 mmType: GrantFiled: April 10, 2014Date of Patent: June 27, 2017Assignee: Crown Packaging Technology, Inc.Inventors: Paul Robert Dunwoody, Andrew Robert Lockley, Philip Alan Marriot, Stephen John Osborn
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Publication number: 20160214164Abstract: A horizontal can necking machine assembly includes a plural of main turrets and a plural of transfer starwheels. Each main turret includes a main turret shaft, a main gear mounted on the main turret shaft, a pusher assembly, and a die capable of necking a can body upon actuation of the turret shaft. Each transfer starwheel includes a transfer shaft and a transfer gear mounted on the transfer shaft. The main gears are engaged with the transfer gears such that lines through the main gear center and the centers of opposing transfer gears form an included angle of less than 170 degrees, thereby increasing the angular range available for necking the can body. The main turrets and transfer starwheels may operate to neck and move at least 2800 cans per minute, and each pusher assembly may have a stroke length relative to the die that is at least 1.5 inches.Type: ApplicationFiled: April 1, 2016Publication date: July 28, 2016Inventors: Paul Robert Dunwoody, Ian K. Scholey
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Patent number: 9387959Abstract: A two-part closure (1) which has a disc (2) and a skirt (3). In one example, the skirt wall is smooth between upper and lower rims so that the disc is moveable between the rim features. Typically in a metal skirt or ring, the upper rim feature is a curl (11) and the lower rim feature is a curled edge (12) with equi-spaced lugs (13) on the skirt wall.Type: GrantFiled: January 6, 2014Date of Patent: July 12, 2016Assignee: Crown Packaging Technology, Inc.Inventor: Paul Robert Dunwoody
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Patent number: 9364938Abstract: The apparatus comprises holder (20) with a seating face on which a container such as a cupshaped article (1) stands. Air is supplied through channels and air pressure is balanced so as to hold the article (1) against the face. The profile of the apparatus guides a base feature, or “stand” of the article (1) into the holder (20) and onto the seating face (23), and contacts the article (1) radially outside the seating face (23). The apparatus also has a concentric outer sleeve (25) to provide the additional radial contact and resist lateral movement of the article (1) while maintaining concentricity.Type: GrantFiled: March 6, 2012Date of Patent: June 14, 2016Assignee: Crown Packaging Technology, Inc.Inventor: Paul Robert Dunwoody
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Publication number: 20160101912Abstract: A closure assembly comprising a two-part closure having a metal panel or disc (2) and a ring (3), and a container such as a glass jar (20). The ring (3) is substantially cylindrical with an axially upwardly extending sidewall and has a radially inwardly extending lower edge. The jar (20) terminates in a radially outwardly extending beaded rim (16) and the disc (2) has a curled circumference (8) such that this curl (8) co-operates with the beaded rim (16) of the container to provide a primary seal. In one example, in a metal ring (3), the lower edge is curled with equally spaced lugs (13) on the skirt wall. In a plastic ring, the upper rim feature may be omitted.Type: ApplicationFiled: December 17, 2015Publication date: April 14, 2016Inventor: Paul Robert Dunwoody
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Patent number: 9308570Abstract: A horizontal can necking machine assembly includes a plural of main turrets and a plural of transfer starwheels. Each main turret includes a main turret shaft, a main gear mounted on the main turret shaft, a pusher assembly, and a die capable of necking a can body upon actuation of the turret shaft. Each transfer starwheel includes a transfer shaft and a transfer gear mounted on the transfer shaft. The main gears are engaged with the transfer gears such that lines through the main gear center and the centers of opposing transfer gears form an included angle of less than 170 degrees, thereby increasing the angular range available for necking the can body. The main turrets and transfer starwheels may operate to neck and move at least 2800 cans per minute, and each pusher assembly may have a stroke length relative to the die that is at least 1.5 inches.Type: GrantFiled: November 4, 2013Date of Patent: April 12, 2016Assignee: Crown Packaging Technology, Inc.Inventors: Paul Robert Dunwoody, Ian K. Scholey