Patents by Inventor Christian Fröba

Christian Fröba 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).

  • Dwell time control system and method with automatic pressure switch point adjustment
    Patent number: 9038420
    Abstract: 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: Grant
    Filed: October 18, 2013
    Date of Patent: May 26, 2015
    Assignee: Emhart Glass S.A.
    Inventors: Andreas Helfenstein, Hartmut Geisel, Christian Fröba
  • Dwell Time Control System And Method With Automatic Pressure Switch Point Adjustment
    Publication number: 20140041415
    Abstract: 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: Application
    Filed: October 18, 2013
    Publication date: February 13, 2014
    Applicant: Emhart Glass S.A.
    Inventors: Andreas Helfenstein, Hartmut Geisel, Christian Fröba
  • Dwell time control method and system with automatic pressure switch point adjustment
    Patent number: 8561428
    Abstract: 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: Grant
    Filed: September 14, 2011
    Date of Patent: October 22, 2013
    Assignee: Emhart Glass S.A.
    Inventors: Andreas Helfenstein, Hartmut Geisel, Christian Fröba
  • Dwell Time Control Method And System With Automatic Pressure Switch Point Adjustment
    Publication number: 20130061634
    Abstract: 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: Application
    Filed: September 14, 2011
    Publication date: March 14, 2013
    Inventors: Andreas Helfenstein, Hartmut Geisel, Christian Fröba