Patents by Inventor John T. EHLING

John T. EHLING 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).

  • Apparatus and method for forming duct flanges and duct work
    Patent number: 11697147
    Abstract: An apparatus and method are disclosed for the automated manufacture of a duct flange profile to make small duct fittings, including a TDF duct flange profile. The duct flange profile is directed to small part duct fittings with section widths up to about 16 inches in 20 to 26 gauge metal. The apparatus includes a bending head assembly having a drive roller, a pressure roller, an anvil and a bending leaf and a roll form assembly.
    Type: Grant
    Filed: November 16, 2021
    Date of Patent: July 11, 2023
    Assignee: HVAC Inventors/Systemation, Inc.
    Inventors: David E. Daw, John T. Ehling
  • APPARATUS AND METHOD FOR FORMING DUCT FLANGES AND DUCT WORK
    Publication number: 20220072601
    Abstract: An apparatus and method are disclosed for the automated manufacture of a duct flange profile to make small duct fittings, including a TDF duct flange profile. The duct flange profile is directed to small part duct fittings with section widths up to about 16 inches in 20 to 26 gauge metal. The apparatus includes a bending head assembly having a drive roller, a pressure roller, an anvil and a bending leaf and a roll form assembly.
    Type: Application
    Filed: November 16, 2021
    Publication date: March 10, 2022
    Applicant: HVAC Inventors/Systemation, Inc.
    Inventors: David E. Daw, John T. Ehling
  • Apparatus and method for forming duct flanges and duct work
    Patent number: 11213878
    Abstract: An apparatus and method are disclosed for the automated manufacture of a duct flange profile to make small duct fittings, including a transverse duct flange duct flange profile. The duct flange profile is directed to small part duct fittings with section widths up to about 16 inches in 20 to 26 gauge metal. The apparatus includes a bending head assembly having a drive roller, a pressure roller, an anvil and a bending leaf and a roll form assembly.
    Type: Grant
    Filed: February 27, 2020
    Date of Patent: January 4, 2022
    Assignee: HVAC Inventors/Systemation, Inc.
    Inventors: David E. Daw, John T. Ehling
  • APPARATUS AND METHOD FOR FORMING DUCT FLANGES AND DUCT WORK
    Publication number: 20200276632
    Abstract: An apparatus and method are disclosed for the automated manufacture of a duct flange profile to make small duct fittings, including a TDF duct flange profile. The duct flange profile is directed to small part duct fittings with section widths up to about 16 inches in 20 to 26 gauge metal. The apparatus includes a bending head assembly having a drive roller, a pressure roller, an anvil and a bending leaf and a roll form assembly.
    Type: Application
    Filed: February 27, 2020
    Publication date: September 3, 2020
    Applicant: HVAC Inventors/Systemation, Inc.
    Inventors: David E. DAW, John T. EHLING