Patents by Inventor Roman Sindelar

Roman Sindelar 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).

  • Tubular structures and knurling systems and methods of manufacture and use thereof
    Patent number: 10927982
    Abstract: A method includes: bending a sheet about a mandrel such that the sheet is tubular, wherein the sheet includes a first longitudinal end portion and a second longitudinal end portion; engaging the first longitudinal end portion with the second longitudinal end portion; and passing the sheet between a first knurling wheel and a second knurling wheel such that the first knurling wheel applies a first knurling pattern to the sheet over the first longitudinal end portion and the second longitudinal end portion and the second knurling wheel applies a second knurling pattern to the sheet over the first longitudinal end portion and the second longitudinal end portion.
    Type: Grant
    Filed: March 2, 2018
    Date of Patent: February 23, 2021
    Assignee: Deflecto, LLC
    Inventor: Roman Sindelar
  • TUBULAR STRUCTURES AND KNURLING SYSTEMS AND METHODS OF MANUFACTURE AND USE THEREOF
    Publication number: 20180187800
    Abstract: A method includes: bending a sheet about a mandrel such that the sheet is tubular, wherein the sheet includes a first longitudinal end portion and a second longitudinal end portion; engaging the first longitudinal end portion with the second longitudinal end portion; and passing the sheet between a first knurling wheel and a second knurling wheel such that the first knurling wheel applies a first knurling pattern to the sheet over the first longitudinal end portion and the second longitudinal end portion and the second knurling wheel applies a second knurling pattern to the sheet over the first longitudinal end portion and the second longitudinal end portion.
    Type: Application
    Filed: March 2, 2018
    Publication date: July 5, 2018
    Inventor: Roman Sindelar
  • Tubular structures and knurling systems and methods of manufacture and use thereof
    Patent number: 9933092
    Abstract: A method includes: bending a sheet about a mandrel such that the sheet is tubular, wherein the sheet includes a first longitudinal end portion and a second longitudinal end portion; engaging the first longitudinal end portion with the second longitudinal end portion; and passing the sheet between a first knurling wheel and a second knurling wheel such that the first knurling wheel applies a first knurling pattern to the sheet over the first longitudinal end portion and the second longitudinal end portion and the second knurling wheel applies a second knurling pattern to the sheet over the first longitudinal end portion and the second longitudinal end portion.
    Type: Grant
    Filed: August 16, 2017
    Date of Patent: April 3, 2018
    Assignee: Deflecto, LLC
    Inventor: Roman Sindelar
  • TUBULAR STRUCTURES AND KNURLING SYSTEMS AND METHODS OF MANUFACTURE AND USE THEREOF
    Publication number: 20180051830
    Abstract: A method includes: bending a sheet about a mandrel such that the sheet is tubular, wherein the sheet includes a first longitudinal end portion and a second longitudinal end portion; engaging the first longitudinal end portion with the second longitudinal end portion; and passing the sheet between a first knurling wheel and a second knurling wheel such that the first knurling wheel applies a first knurling pattern to the sheet over the first longitudinal end portion and the second longitudinal end portion and the second knurling wheel applies a second knurling pattern to the sheet over the first longitudinal end portion and the second longitudinal end portion.
    Type: Application
    Filed: August 16, 2017
    Publication date: February 22, 2018
    Inventor: Roman Sindelar