Patents by Inventor Earle L. Ellis
Earle L. Ellis 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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Patent number: 6957953Abstract: An extruder for extruding extrudate is provided and includes a generally cylindrical barrel portion having an end face. A screw conveyor is rotatably arranged coaxially within the barrel portion and has a downstream end. The screw conveyor has helical flights that define a first flow path with the barrel for the extrudate. The first flow path has a first cross-sectional area. An adapter is arranged on the end face of the barrel portion and defines an exit portion of the extruder. A screw tip is secured to the downstream end of the screw conveyor and extends into the adapter. The screw tip and the adapter define a second flow path for the extrudate with a second cross-section area being at least as large as the first cross-sectional area.Type: GrantFiled: February 20, 2003Date of Patent: October 25, 2005Assignee: Graham Packaging Company, L.P.Inventors: Earle L. Ellis, Roy N. Krohn, David A. Kesselman
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Publication number: 20040166191Abstract: An extruder for extruding extrudate is provided and includes a generally cylindrical barrel portion having an end face. A screw conveyor is rotatably arranged coaxially within the barrel portion and has a downstream end. The screw conveyor has helical flights that define a first flow path with the barrel for the extrudate. The first flow path has a first cross-sectional area. An adapter is arranged on the end face of the barrel portion and defines an exit portion of the extruder. A screw tip is secured to the downstream end of the screw conveyor and extends into the adapter. The screw tip and the adapter define a second flow path for the extrudate with a second cross-section area being at least as large as the first cross-sectional area.Type: ApplicationFiled: February 20, 2003Publication date: August 26, 2004Applicant: Graham Packaging Company, L.P.Inventors: Earle L. Ellis, Roy N. Krohn, David A. Kesselman
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Patent number: 6673301Abstract: A squeezable tube-shaped plastic container (10, 100) having a one-piece construction formed by extrusion blow-molding techniques. The container (10, 100) has a retractable end wall (26, 126) which is positionable into an outwardly projecting position and an inverted position. The end wall (26, 126), as blown, is in the outwardly projecting position and is thereafter inverted so that a tamper indicating covering (28, 128) can be attached to the end (14, 114) of the container (10, 100) thereby sealing the end wall (26, 126). The inverted end wall (26, 126) permits the container (10, 100) to be free standing on the standing ring (20, 120). In use, the flexible sidewall (12, 112) of the container (10, 100) is squeezed to snap the end wall (26, 126) from the inverted position to an outwardly projecting position to enable ready access to a dispensing opening (32, 132) on the end wall (26, 126).Type: GrantFiled: June 4, 2002Date of Patent: January 6, 2004Assignee: Graham Packaging Company, L.P.Inventors: David W. Cargile, Earle L. Ellis, Roy N. Krohn, David A. Kesselman, Edward Roubal, Rafael F. Berrittella, Norberto O. Gomez
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Patent number: 6629834Abstract: At least one blow-molded plastic container and one compression molded lid are simultaneously produced in a blow mold. Preferably, the method and apparatus utilize a mold capable of simultaneously receiving a pair of extruded parisons. One of the parisons is utilized to produce a pair of aligned container bodies and the other of the parisons is utilized to form a pair of aligned closures. In this manner, a container and closure combination can be manufactured having perfect color matching and can be readily recycled in its entirety. In addition, the method and apparatus according to the present invention significantly reduces tooling costs and required machine capitol.Type: GrantFiled: November 4, 2002Date of Patent: October 7, 2003Assignee: Graham Packaging Company, L.P.Inventors: David W. Cargile, Earle L. Ellis, David Kesselman, Roy N. Krohn
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Patent number: 6555033Abstract: At least one blow-molded plastic container and one compression molded lid are simultaneously produced in a blow mold. Preferably, the method and apparatus utilize a mold capable of simultaneously receiving a pair of extruded parisons. One of the parisons is utilized to produce a pair of aligned container bodies and the other of the parisons is utilized to form a pair of aligned closures. In this manner, a container and closure combination can be manufactured having perfect color matching and can be readily recycled in its entirety. In addition, the method and apparatus according to the present invention significantly reduces tooling costs and required machine capitol.Type: GrantFiled: June 27, 2001Date of Patent: April 29, 2003Assignee: Graham Packaging Company, L.P.Inventors: David W. Cargile, Earle L. Ellis, David Kesselman, Roy N. Krohn
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Patent number: 6551092Abstract: A separate parison separation assembly for each parison in a multiple parison blow molding apparatus. Each assembly has a shear plate secured in a recess machined into the mold in order to provide a positive and repeatable location of the shear plate. The shear plate is square and provides eight cutting edges; each of the four sides of the shear plate by rotating the shear plate as an edge wears, and by turning it over. The shear plate has a useful life up to eight times that of the prior art designs. The cut-off knife for each assembly is secured to the other half of the mold, directly on its surface, with a compression pocket cut into the face of this half of the mold to contain and to compress the parison between the mold halves. The design eliminates open space at the edge where the flash forms, reducing the mass of polymer at the edge and thus the temperature of the flash edge.Type: GrantFiled: January 17, 2001Date of Patent: April 22, 2003Assignee: Graham Packaging Company, LPInventors: Earle L. Ellis, David A. Kesselman, Bernd Klingenmaier, Jeff Enfield, Roy N. Krohn
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Publication number: 20030064127Abstract: At least one blow-molded plastic container and one compression molded lid are simultaneously produced in a blow mold. Preferably, the method and apparatus utilize a mold capable of simultaneously receiving a pair of extruded parisons. One of the parisons is utilized to produce a pair of aligned container bodies and the other of the parisons is utilized to form a pair of aligned closures. In this manner, a container and closure combination can be manufactured having perfect color matching and can be readily recycled in its entirety. In addition, the method and apparatus according to the present invention significantly reduces tooling costs and required machine capitol.Type: ApplicationFiled: November 4, 2002Publication date: April 3, 2003Inventors: David W. Cargile, Earle L. Ellis, David Kesselman, Roy N. Krohn
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Publication number: 20030001316Abstract: At least one blow-molded plastic container and one compression molded lid are simultaneously produced in a blow mold. Preferably, the method and apparatus utilize a mold capable of simultaneously receiving a pair of extruded parisons. One of the parisons is utilized to produce a pair of aligned container bodies and the other of the parisons is utilized to form a pair of aligned closures. In this manner, a container and closure combination can be manufactured having perfect color matching and can be readily recycled in its entirety. In addition, the method and apparatus according to the present invention significantly reduces tooling costs and required machine capitol.Type: ApplicationFiled: June 27, 2001Publication date: January 2, 2003Inventors: David W. Cargile, Earle L. Ellis, David Kesselman, Roy N. Krohn
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Publication number: 20020180114Abstract: A squeezable tube-shaped plastic container (10, 100) having a one-piece construction formed by extrusion blow-molding techniques. The container (10, 100) has a retractable end wall (26, 126) which is positionable into an outwardly projecting position and an inverted position. The end wall (26, 126), as blown, is in the outwardly projecting position and is thereafter inverted so that a tamper indicating covering (28, 128) can be attached to the end (14, 114) of the container (10, 100) thereby sealing the end wall (26, 126). The inverted end wall (26, 126) permits the container (10, 100) to be free standing on the standing ring (20, 120). In use, the flexible sidewall (12, 112) of the container (10, 100) is squeezed to snap the end wall (26, 126) from the inverted position to an outwardly projecting position to enable ready access to a dispensing opening (32, 132) on the end wall (26, 126).Type: ApplicationFiled: June 4, 2002Publication date: December 5, 2002Inventors: David W. Cargile, Earle L Ellis, Roy N Krohn, David A Kesselman, Edward Roubal, Rafael F Berrittella, Norberto O Gomez
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Publication number: 20020094353Abstract: A separate parison separation assembly for each parison in a multiple parison blow molding apparatus. Each assembly has a shear plate secured in a recess machined into the mold in order to provide a positive and repeatable location of the shear plate. The shear plate is square and provides eight cutting edges; each of the four sides of the shear plate by rotating the shear plate as an edge wears, and by turning it over. The shear plate has a useful life up to eight times that of the prior art designs. The cut-off knife for each assembly is secured to the other half of the mold, directly on its surface, with a compression pocket cut into the face of this half of the mold to contain and to compress the parison between the mold halves. The design eliminates open space at the edge where the flash forms, reducing the mass of polymer at the edge and thus the temperature of the flash edge.Type: ApplicationFiled: January 17, 2001Publication date: July 18, 2002Inventors: Earle L. Ellis, David A. Kesselman, Bernd Klingenmaier, Jeff Enfield, Roy N. Krohn