Patents by Inventor Tommy Persson

Tommy Persson 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: 7942370
    Abstract: A vortex detection device suitable for use in fighter aircraft including an angle-of-attack sensor, an angle-of-attack processing unit connected to the angle-of-attack sensor capable of forming a signal representative of current air stream's angle-of-attack, a synthetic angle-of-attack estimation unit capable of forming a synthetic angle-of-attack signal, and a vortex level calculation unit connected to the processing and estimation unit, capable of calculating a vortex level signal, and a vortex detection unit connected to the vortex level calculation unit, for deciding, based on the vortex level signal, if a vortex is detected.
    Type: Grant
    Filed: May 7, 2007
    Date of Patent: May 17, 2011
    Assignee: SAAB AB
    Inventors: Robert Hillgren, Tommy Persson, Fredrik Karlsson
  • Publication number: 20100012789
    Abstract: A vortex detection device suitable for use in fighter aircraft including an angle-of-attack sensor, an angle-of-attack processing unit connected to the angle-of-attack sensor capable of forming a signal representative of current air stream's angle-of-attack, a synthetic angle-of-attack estimation unit capable of forming a synthetic angle-of-attack signal, and a vortex level calculation unit connected to the processing and estimation unit, capable of calculating a vortex level signal, and a vortex detection unit connected to the vortex level calculation unit, for deciding, based on the vortex level signal, if a vortex is detected.
    Type: Application
    Filed: May 7, 2007
    Publication date: January 21, 2010
    Applicant: SAAB AB
    Inventors: Robert Hillgren, Tommy Persson, Fredrik Karlsson
  • Patent number: 7320560
    Abstract: The present invention is related to a method for manual installation of rock bolts expandable by means of a pressure media comprising manual coupling of a pressure source to a rock bolt to be expanded. The method comprises the steps of an operator starting a sequence whereby the rock bolt is pressurized to a predetermined pressure, and it being ensured that the predetermined pressure is kept for a predetermined period of time. The present invention is also related to such a control system, and an apparatus comprising such a control system.
    Type: Grant
    Filed: May 12, 2004
    Date of Patent: January 22, 2008
    Assignee: Atlas Copco Rock Drills AB
    Inventors: Tommy Persson, Morgan Kanflod, Fredrik Öberg, Tapio Toivonen, Niclas Örjas, Hans Gustavsson, Göran Sjöstedt
  • Publication number: 20070036614
    Abstract: The present invention is related to a method for manual installation of rock bolts expandable by means of a pressure media comprising manual coupling of a pressure source to a rock bolt to be expanded. The method comprises the steps of an operator starting a sequence whereby the rock bolt is pressurized to a predetermined pressure, and it being ensured that the predetermined pressure is kept for a predetermined period of time. The present invention is also related to such a control system, and an apparatus comprising such a control system.
    Type: Application
    Filed: May 12, 2004
    Publication date: February 15, 2007
    Applicant: ATLAS COPCO ROCK DRILLS AB
    Inventors: Tommy Persson, Morgan Kanflod, Tapio Toivonen, Fredrik Öberg, Niclas Örjas, Hans Gustavsson, Göran Sjöstedt
  • Publication number: 20040110020
    Abstract: The invention relates to a process for the coating of a wooden, wood-like and/or cellulose-containing substrate comprising the steps of:
    Type: Application
    Filed: November 25, 2003
    Publication date: June 10, 2004
    Inventors: Ann Kerstin Birgitta Kjellqvist, Leif Tommy Persson
  • Publication number: 20020081393
    Abstract: The invention relates to a process for the coating of a wooden, wood-like and/or cellulose-containing substrate comprising the steps of:
    Type: Application
    Filed: December 18, 2001
    Publication date: June 27, 2002
    Inventors: Ann Kerstin Birgitta Kjellqvist, Leif Tommy Persson
  • Patent number: 5911623
    Abstract: Exhaust extractor device for evacuating vehicle exhaust gases from a working area and comprising a suction device for generating a vacuum in at least one suction hose (5) connected to a suction side of the suction device. The suction hose is provided at its end with a connector piece (9) for temporary attachment to the exhaust pipe of a motor vehicle. The connector piece is displaceable between an attachment position in which the exhaust pipe extends through a connector opening (19) into an open passage (20) through the connector piece, and a standby position in which the connector piece is removed from the exhaust pipe and is closed by means of a closure member (25). The closure member presents an internal sealing surface (26) located at a distance from the connector opening, and is in the form of a body having a peripherally extending sealing surface (27).
    Type: Grant
    Filed: December 4, 1997
    Date of Patent: June 15, 1999
    Assignee: AB Volve
    Inventors: Claes Trana, Tommie Persson