Patents by Inventor STEVEN J. KERSKA

STEVEN J. KERSKA 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).

  • METHOD AND APPARATUS FOR MANIPULATING METAL WORKPIECES
    Publication number: 20210164686
    Abstract: A method of forming a duct section from a web of material includes the steps of forming a series of perforations in a web of material, the series of perforations defining an outline of one of a hole or notch in a finished duct section, forming a male lock bend and a female lock seam in first opposed edges of the web of material, forming flanges in second opposed edges of the web of material, removing the portion of material interior to the series of perforations to form the hole or notch, and bending the web of material to form the finished duct section.
    Type: Application
    Filed: February 12, 2021
    Publication date: June 3, 2021
    Applicant: Mestek Machinery, Inc.
    Inventors: STEVEN J. KERSKA, JOHN R. WELTY, TIMOTHY A. COON
  • Method and apparatus for manipulating metal workpieces
    Patent number: 10955166
    Abstract: A method of forming a duct section from a web of material includes the steps of forming a series of perforations in a web of material, the series of perforations defining an outline of one of a hole or notch in a finished duct section, forming a male lock bend and a female lock seam in first opposed edges of the web of material, forming flanges in second opposed edges of the web of material, removing the portion of material interior to the series of perforations to form the hole or notch, and bending the web of material to form the finished duct section.
    Type: Grant
    Filed: November 20, 2017
    Date of Patent: March 23, 2021
    Assignee: Mestek Machinery, Inc.
    Inventors: Steven J. Kerska, John R. Welty, Timothy A. Coon
  • METHOD AND APPARATUS FOR MANIPULATING METAL WORKPIECES
    Publication number: 20200116384
    Abstract: A method of forming a duct section from a web of material includes the steps of forming a series of perforations in a web of material, the series of perforations defining an outline of one of a hole or notch in a finished duct section, forming a male lock bend and a female lock seam in first opposed edges of the web of material, forming flanges in second opposed edges of the web of material, removing the portion of material interior to the series of perforations to form the hole or notch, and bending the web of material to form the finished duct section.
    Type: Application
    Filed: December 16, 2019
    Publication date: April 16, 2020
    Applicant: Mestek Machinery, Inc.
    Inventors: STEVEN J. KERSKA, JOHN R. WELTY, TIMOTHY A. COON
  • METHOD AND APPARATUS FOR MANIPULATING METAL WORKPIECES
    Publication number: 20180142916
    Abstract: A method of forming a duct section from a web of material includes the steps of forming a series of perforations in a web of material, the series of perforations defining an outline of one of a hole or notch in a finished duct section, forming a male lock bend and a female lock seam in first opposed edges of the web of material, forming flanges in second opposed edges of the web of material, removing the portion of material interior to the series of perforations to form the hole or notch, and bending the web of material to form the finished duct section.
    Type: Application
    Filed: November 20, 2017
    Publication date: May 24, 2018
    Applicant: Mestek Machinery, Inc.
    Inventors: STEVEN J. KERSKA, JOHN R. WELTY, TIMOTHY A. COON