Patents by Inventor Dennis D. Warren

Dennis D. Warren 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).

  • Patent number: 10399884
    Abstract: A glass sheet used in the making of an aircraft windshield is shaped using the “cut-to-size” method instead of the “out-after-bend” method. In a preferred aspect of the invention the “cut-to-size” method is practiced using a bending iron having a sheet shaping rail having a stationary shaping rail portion mounted on a support member and an articulating shaping rail portion pivotally mounted on the support member for movement from a non-shaping position to a shaping position.
    Type: Grant
    Filed: September 25, 2017
    Date of Patent: September 3, 2019
    Assignee: PPG Industries Ohio, Inc.
    Inventors: John E. DeAngelis, Yu Jiao, Dennis D. Warren, Chao Yu
  • Publication number: 20180016177
    Abstract: A glass sheet used in the making of an aircraft windshield is shaped using the “cut-to-size” method instead of the “out-after-bend” method. In a preferred aspect of the invention the “cut-to-size” method is practiced using a bending iron having a sheet shaping rail having a stationary shaping rail portion mounted on a support member and an articulating shaping rail portion pivotally mounted on the support member for movement from a non-shaping position to a shaping position.
    Type: Application
    Filed: September 25, 2017
    Publication date: January 18, 2018
    Inventors: John E. DeAngelis, Yu Jiao, Dennis D. Warren, Chao Yu
  • Patent number: 9771296
    Abstract: A glass sheet used in the making of an aircraft windshield is shaped using the “cut-to-size” method instead of the “cut-after-bend” method. In a preferred aspect of the invention the “cut-to-size” method is practiced using a bending iron having a sheet shaping rail having a stationary shaping rail portion mounted on a support member and an articulating shaping rail portion pivotally mounted on the support member for movement from a non-shaping position to a shaping position.
    Type: Grant
    Filed: February 6, 2015
    Date of Patent: September 26, 2017
    Assignee: PPG Industries Ohio, Inc.
    Inventors: John E. DeAngelis, Yu Jiao, Dennis D. Warren, Chao Yu
  • Patent number: 9108875
    Abstract: A furnace for shaping glass sheets for aircraft transparencies using the cut-to-size method includes a preheat and cooling furnace defined as a first furnace, and a shaping furnace. A conveyor geared for reciprocating movement moves a bending iron supporting a glass sheet through the first furnace set to a preheat temperature. The glass sheet supported on the bending iron is heated in the shaping furnace by microwave beams from a gyrotron to heat portions of the glass sheet to be shaped to a complex shape. After the sheet is shaped, the conveyor moves the bending iron supporting the shaped glass sheet from the shaping furnace through the first furnace set to a cooling cycle.
    Type: Grant
    Filed: May 30, 2013
    Date of Patent: August 18, 2015
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Yu Jiao, Robert M. Bonaddio, Joseph G. Koepfinger, Joseph Medzius, James Franklin Priddy, Russell Willis Schrier, Dennis D. Warren, Chao Yu
  • Publication number: 20150152002
    Abstract: A glass sheet used in the making of an aircraft windshield is shaped using the “cut-to-size” method instead of the “cut-after-bend” method. In a preferred aspect of the invention the “cut-to-size” method is practiced using a bending iron having a sheet shaping rail having a stationary shaping rail portion mounted on a support member and an articulating shaping rail portion pivotally mounted on the support member for movement from a non-shaping position to a shaping position.
    Type: Application
    Filed: February 6, 2015
    Publication date: June 4, 2015
    Inventors: John E. DeAngelis, Yu Jiao, Dennis D. Warren, Chao Yu
  • Patent number: 8978420
    Abstract: A sheet bending device includes a sheet shaping rail having a stationary shaping rail portion mounted on a support member and an articulating shaping rail portion pivotally mounted on the support member for movement from a non-shaping position to a shaping position. A retention member limits movement of a sheet to be shaped relative to the stationary shaping rail portion when the articulating shaping rail portion moves to the shaping position. A “cut-to-size” method is also disclosed to shape a sheet for use in making an aircraft transparency.
    Type: Grant
    Filed: December 14, 2012
    Date of Patent: March 17, 2015
    Assignee: PPG Industries Ohio, Inc.
    Inventors: John E. DeAngelis, Yu Jiao, Dennis D. Warren, Chao Yu
  • Publication number: 20140352357
    Abstract: A furnace for shaping glass sheets for aircraft transparencies using the cut-to-size method includes a preheat and cooling furnace defined as a first furnace, and a shaping furnace. A conveyor geared for reciprocating movement moves a bending iron supporting a glass sheet through the first furnace set to a preheat temperature. The glass sheet supported on the bending iron is heated in the shaping furnace by microwave beams from a gyrotron to heat portions of the glass sheet to be shaped to a complex shape. After the sheet is shaped, the conveyor moves the bending iron supporting the shaped glass sheet from the shaping furnace through the first furnace set to a cooling cycle.
    Type: Application
    Filed: May 30, 2013
    Publication date: December 4, 2014
    Inventors: Yu Jiao, Robert M. Bonaddio, Joseph G. Koepfinger, Joseph Medzius, James Franklin Priddy, Russell Willis Schrier, Dennis D. Warren, Chao Yu
  • Publication number: 20140165653
    Abstract: A sheet bending device includes a sheet shaping rail having a stationary shaping rail portion mounted on a support member and an articulating shaping rail portion pivotally mounted on the support member for movement from a non-shaping position to a shaping position. A retention member limits movement of a sheet to be shaped relative to the stationary shaping rail portion when the articulating shaping rail portion moves to the shaping position. A “cut-to-size” method is also disclosed to shape a sheet for use in making an aircraft transparency.
    Type: Application
    Filed: December 14, 2012
    Publication date: June 19, 2014
    Applicant: PPG INDUSTRIES OHIO, INC.
    Inventors: John E. DeAngelis, Yu Jiao, Dennis D. Warren, Chao Yu