Patents by Inventor Torsten Baavhammar

Torsten Baavhammar 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 a device for brazing
    Patent number: 9511435
    Abstract: A method for controlling a brazing process, including the steps of applying a welding current through an electrode (52) pressed to a metal surface (83) of a workpiece to form a welding arc. Further steps are continuously measuring the welding current and the welding time, continuously determining supplied energy on the basis of the welding current and the welding time, digitally switching current supplied from batteries of a DC source (10) and to maintain a substantially constant welding current, interrupting the supply of welding current when a predetermined amount of energy has been supplied and supplying heat to batteries when a temperature of the batteries is below a predetermined value.
    Type: Grant
    Filed: September 22, 2010
    Date of Patent: December 6, 2016
    Assignee: Safetrack Infrasystems SISAB AB
    Inventors: Torsten Båvhammar, Johan Båvhammar, Bo Svensson
  • METHOD AND A DEVICE FOR BRAZING
    Publication number: 20120312789
    Abstract: A method for controlling a brazing process, including the steps of applying a welding current through an electrode (52) pressed to a metal surface (83) of a workpiece to form a welding arc. Further steps are continuously measuring the welding current and the welding time, continuously determining supplied energy on the basis of the welding current and the welding time, digitally switching current supplied from batteries of a DC source (10) and to maintain a substantially constant welding current, interrupting the supply of welding current when a predetermined amount of energy has been supplied and supplying heat to batteries when a temperature of the batteries is below a predetermined value.
    Type: Application
    Filed: September 22, 2010
    Publication date: December 13, 2012
    Applicant: SAFETRACK INFRASYSTEMS SISAB AB
    Inventors: Torsten Båvhammar, Johan Båvhammar, Bo Svensson
  • Method and apparatus for reducing energy consumption and minimizing martensite formations when joining a connecting piece of metal with a metal surface by pin brazing
    Patent number: 5313045
    Abstract: A method and apparatus for reducing energy consumption and minimizing martensite formations when joining a connecting piece of metal with a metal surface by pin brazing.
    Type: Grant
    Filed: August 22, 1991
    Date of Patent: May 17, 1994
    Assignee: Safetrack Baavhammar AB
    Inventor: Torsten Baavhammar