Patents Assigned to Emhart Glass S.A.
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Publication number: 20140041415Abstract: A dwell time control system and method for automatically adjusting the selection and timing of a sequence of pressures used to drive the plunger in a parison mold during the parison forming process. The timing of characteristics of the observed press curve from one or more previous parison forming cycles are ascertained and used to control the timing of the changes in pressure during a subsequent parison forming cycle. The timings of these changes of pressure are determined as predetermined percentages of the timings of the characteristics in order to prevent the blow mold from being forced open and in order to prevent the occurrence of an overpressed finish.Type: ApplicationFiled: October 18, 2013Publication date: February 13, 2014Applicant: Emhart Glass S.A.Inventors: Andreas Helfenstein, Hartmut Geisel, Christian Fröba
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Patent number: 8561428Abstract: A dwell time control system and method for automatically adjusting the selection and timing of a sequence of pressures used to drive the plunger in a parison mold during the parison forming process. The timing of characteristics of the observed press curve from one or more previous parison forming cycles are ascertained and used to control the timing of the changes in pressure during a subsequent parison forming cycle. The timings of these changes of pressure are determined as predetermined percentages of the timings of the characteristics in order to prevent the blow mold from being forced open and in order to prevent the occurrence of an overpressed finish.Type: GrantFiled: September 14, 2011Date of Patent: October 22, 2013Assignee: Emhart Glass S.A.Inventors: Andreas Helfenstein, Hartmut Geisel, Christian Fröba
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Patent number: 8548771Abstract: An improved system and method for automatically inspecting the quality of newly-manufactured containers is disclosed that detects containers that are out-of-round by more than a predetermined amount so that they may be rejected to ensure that containers that are passed are of acceptable quality. One or more ultrasonic sensors are located at fixed positions with reference to a container that is rotated. If any sensor detects that the distance between the sensor and the container falls outside of an acceptable range, the container is rejected.Type: GrantFiled: May 13, 2008Date of Patent: October 1, 2013Assignee: Emhart Glass S.A.Inventors: Carl L. Holden, Scott M. Briggs
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Patent number: 8462203Abstract: The present invention relates to a method and system for monitoring and controlling a glass container forming process. The radiation emitted by each hot glass container is measured with measurement unit immediately after the forming machine. The described method normalizes the measurement from glass container to glass container and thereby removes the effects of overall temperature variations between glass containers, changing ambient conditions, and other variations affecting the measurements, which provides a unique quality reference for each glass container. By reviewing this reference for each produced glass container, the quality of the produced containers can be improved.Type: GrantFiled: December 8, 2010Date of Patent: June 11, 2013Assignee: Emhart Glass S.A.Inventors: Mark Edwin Holtkamp, Teunis René Brummelman
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Patent number: 8448472Abstract: An I. S. Machine includes a blow station having a blow mold which closes to support a parison with the supported parison undergoing reheat and then being blown into a bottle. When reheat takes place air at low pressure is supplied to the blow tube to pressurize the interior of the parison to prevent the formation of a birdswing in a blown bottle. Air at a second pressure is supplied to the blow tube for blowing the parison into a bottle following reheat.Type: GrantFiled: September 1, 2006Date of Patent: May 28, 2013Assignee: Emhart Glass S.A.Inventor: Jonathan S. Simon
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Patent number: 8429989Abstract: An apparatus and method for rotating glass containers and like wares for purposes of inspection is disclosed that uses a compact, modular apparatus which has a drive system that automatically accelerates the wares to full rotation speed while applying only the amount of contact force to the wares that is required to rotate them. The apparatus of the present invention is compact and thus consumes minimal volume in the area near the glass container being rotated. The apparatus for rotating glass containers of the present invention has an outstanding ability to move quickly into contact with a glass container and accelerate it to its full speed without damaging it or being damaged by it, and presents a low degree of impact to glass containers.Type: GrantFiled: October 18, 2008Date of Patent: April 30, 2013Assignee: Emhart Glass S.A.Inventor: Henry F. Raupp
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Patent number: 8151833Abstract: An inspection machine for inspecting the volume of liquid contained by a bottle filed to its defined fill height. A head is lowered and has a sealing plate which seals the open finish of a bottle. A fill tube assembly is part of the head and continues to be lowered until a level sensor is located to sense liquid at a pre-fill level. High and low pressure water lines which are a part of the fill tube assembly are operated to fill the bottle to the pre-fill level. The sealing plate is released and then the process is repeated lowering the sensor to the post-fill level and operating only the low-pressure line to fill the bottle to the post-fill level. The total liquid filling the bottle is then computed.Type: GrantFiled: June 20, 2011Date of Patent: April 10, 2012Assignee: Emhart Glass S.A.Inventors: Alan E. Thomas, Michael C. Bagley, Philippe Spiteri
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Patent number: 8141385Abstract: A blow head mechanism for an I.S. machine wherein the blow head has a final blow tube. The final blow tube is supported for vertical displacement between an up position where the open end of the final blow tube is proximate the top of a blown parison and a down position where the open end of the final blow tube is proximate the bottom of a blown parison. The final blow tube is oscillated a plurality of times during the time when the blow head is “on.Type: GrantFiled: August 24, 2010Date of Patent: March 27, 2012Assignee: Emhart Glass S.A.Inventors: Matthew R. Hyre, F. Alan Fenton
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Patent number: 8134695Abstract: An apparatus and method for measurement of the stress in and thickness of the walls of glass containers is disclosed that uses fluorescence to quickly and accurately ascertain both the thickness of the stress layers and the wall thickness in addition to the stress curve in glass containers. The apparatus and method may be used to quickly and accurately measure both the stress in and the thickness of the side walls of glass containers throughout the circumference of the glass containers. The apparatus and method are adapted for large scale glass container manufacturing, and are capable of high speed measurement of the stress in and the thickness of the side walls of glass containers.Type: GrantFiled: August 5, 2009Date of Patent: March 13, 2012Assignee: Emhart Glass S.A.Inventors: William J. Furnas, Sarath K. Tennakoon, Gary C. Weber
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Patent number: 8135206Abstract: A machine for inspecting glass containers rotating at an inspection station. A camera images an area of interest on the glass container (the finish for example) and the area is imaged at angular increments. An anomalous object is analyzed in each image and the deviation of its center relative to a datum is measured. A deviation less than a maximum enables the control to identify the object as a blister.Type: GrantFiled: May 2, 2007Date of Patent: March 13, 2012Assignee: Emhart Glass S.A.Inventors: Richard A. Sones, Richard D. Diehr, Amir R. Novini
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Patent number: 8127573Abstract: A mold cooling system for an I.S. machine wherein cooling air is supplied to vertical cooling holes defined in the molds either at their ends or midway along their length.Type: GrantFiled: April 4, 2006Date of Patent: March 6, 2012Assignee: Emhart Glass S.A.Inventors: Willi Meyer, Thomas Müller
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Patent number: 8127569Abstract: An I.S. machine has a blow station where a parison is blown into a bottle. The parison is blown with a blow head at the “on” position on the blow mold and following the blowing of the parison, the blow head is lifted away from the blow mold. The spacing between the blow head and the mold is defined by a Pressure Profile which is responsive to the sensed pressure within the mold.Type: GrantFiled: March 7, 2011Date of Patent: March 6, 2012Assignee: Emhart Glass S.A.Inventor: Wolfgang Anheyer
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Patent number: 8117870Abstract: An improved and mechanically simplified blow head mechanism for blowing a parison and internally cooling the blown parison is disclosed which may be used with an I.S. machine to blow a parison to form a glass container and then internally cool the blown parison below the annealing point. The blow head mechanism has a cooling tube which supplies final blow and cooling air and which is raised or lowered by raising or lowering the blow head mechanism. The blow head mechanism supports a blow head with a pressurized cylinder which maintains the blow head in a position in engagement with the finish of a parison once initially lowered irrespective of the blow head mechanism being further lowered to lower the cooling tube into the blown parison.Type: GrantFiled: September 24, 2009Date of Patent: February 21, 2012Assignee: Emhart Glass S.A.Inventor: Timothy A. Ringuette
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Patent number: 8117869Abstract: A blank mold for an I. S. Machine is made up of a pair of opposed engaged blanks. When closed, these blanks have a top surface with an opening. The blanks have an inner surface defining the side wall of a parison which extends upwardly to a position a defined distance below the top surface of the blanks and a continuous, beveled surface connecting the top of the inner surface defining the side wall of the parison and the top opening of the blanks. A pair of funnels, each having a continuous beveled surface extending from a circular horizontally disposed top opening downwardly to smaller centrally located bottom opening, are interfit with the top of the blanks with the top opening of the blanks and the bottom opening of the funnel being coextensive.Type: GrantFiled: April 27, 2006Date of Patent: February 21, 2012Assignee: Emhart Glass S.A.Inventor: F. Alan Fenton
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Patent number: 8099980Abstract: An I.S. Machine is provided wherein the blow molds are closed to a slightly cracked location whereby applied cooling air can not leak into and pressurize the blow mold thereby damaging the parison during reheat. When reheat is completed, the blow molds are fully closed and the parison is transformed into a bottle by applying compressed air and/or vacuum.Type: GrantFiled: June 6, 2011Date of Patent: January 24, 2012Assignee: Emhart Glass S.A.Inventor: Jonathan S. Simon
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Patent number: 8094293Abstract: An apparatus and method for measurement of the stress in and thickness of flat glass or curved glass segments is disclosed that uses fluorescence to quickly and accurately ascertain both the thickness of the stress layers and the wall thickness in addition to the stress curve in flat glass or curved glass segments. The apparatus and method may be used to quickly and accurately measure both the stress in and the thickness of flat glass or curved glass segments at a plurality of various locations therein. The apparatus and method are adapted for large scale flat glass or curved glass segment manufacturing, and are capable of high speed measurement of the stress in and the thickness of the flat glass or curved glass segments.Type: GrantFiled: August 5, 2009Date of Patent: January 10, 2012Assignee: Emhart Glass S.A.Inventors: William J. Furnas, Sarath K. Tennakoon, Gary C. Weber
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Patent number: 8058607Abstract: A machine for inspecting glass containers which are being rotated at an inspection station. A light source illuminates a selected area on a rotating glass container while the container rotates through a selected angle and a camera is triggered to capture an image while the bottle rotates through that angle. A plurality of sequential images are recorded and a critical addition is made to be inspected.Type: GrantFiled: September 9, 2010Date of Patent: November 15, 2011Assignees: Emhart Glass S.A., Applied Vision Corporation LLCInventors: Richard D. Diehr, Amir R. Novini, Richard A. Sones
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Patent number: 8049871Abstract: An apparatus and method for measurement of the stress in and thickness of flat glass or curved glass segments is disclosed that uses fluorescence to quickly and accurately ascertain both the thickness of the stress layers and the wall thickness in addition to the stress curve in flat glass or curved glass segments. The apparatus and method may be used to quickly and accurately measure both the stress in and the thickness of flat glass or curved glass segments at a plurality of various locations therein. The apparatus and method are adapted for large scale flat glass or curved glass segment manufacturing, and are capable of high speed measurement of the stress in and the thickness of the flat glass or curved glass segments.Type: GrantFiled: August 5, 2009Date of Patent: November 1, 2011Assignee: Emhart Glass S.A.Inventors: William J. Furnas, Sarath K. Tennakoon, Gary C. Weber
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Patent number: 7975510Abstract: An I. S. Machine is provided wherein the blow molds are closed to a slightly cracked location whereby applied cooling air can not leak into and pressurize the blow mold thereby damaging the parison during reheat. When reheat is completed, the blow molds are fully closed and the parison is transformed into a bottle by applying compressed air and/or vacuum.Type: GrantFiled: June 2, 2006Date of Patent: July 12, 2011Assignee: Emhart Glass S.A.Inventor: Jonathan S. Simon
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Patent number: 7963302Abstract: An inspection machine for inspecting the volume of liquid contained by a bottle filed to its defined fill height. A head is lowered and has a sealing plate which seals the open finish of a bottle. A fill tube assembly is part of the head and continues to be lowered until a level sensor is located to sense liquid at a pre-fill level. High and low pressure water lines which are a part of the fill tube assembly are operated to fill the bottle to the pre-fill level. The sealing plate is released and then the process is repeated lowering the sensor to the post-fill level and operating only the low-pressure line to fill the bottle to the post-fill level. The total liquid filling the bottle is then computed.Type: GrantFiled: September 24, 2007Date of Patent: June 21, 2011Assignee: Emhart Glass S.A.Inventors: Alan E. Thomas, Michael C. Bagley, Philippe Spiteri