Patents by Inventor Leif Bengtsson

Leif Bengtsson 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: 7284458
    Abstract: A device to be used with an adjusting element comprising a rod piston (3) displaceable with the aid of a motor (4) in a piston tube (2). The motor (4) is rotatably arranged at the adjusting element (1) through a worm gear (6), either directly or through a motor attachment (5), wherein the motor (4) extends in an extension plane in parallel with the piston tube (2), said worm gear (6) having a throat formation (7) for axial fixation of the position of the motor (4) in the adjusting element (1) while a free rotation of the motor (4) is practicable through 360° in order to make possible, in applications with limited space, an eligble position fixation of the motor (4) in a predetermined angle in relation to the adjusting element (1).
    Type: Grant
    Filed: April 5, 2004
    Date of Patent: October 23, 2007
    Assignee: Reac AB
    Inventors: Göran Magnusson, Leif Bengtsson
  • Patent number: 6925993
    Abstract: An apparatus for cleaning of crankcase gas coming from an internal combustion engine can be carried by and be releasably coupled to the combustion engine. For this purpose the apparatus comprises an adapter element, which can be connected with the combustion engine, and a housing, which can be releasably coupled to the adapter element and which delimits a separation chamber. The housing supports in the separation chamber a centrifugal rotor that is rotatable about a vertical rotational axis and is arranged for cleaning of the crankcase gas. The centrifugal rotor has a drive shaft extending downwards through a bottom in the separation chamber and into a drive chamber, in which the drive shaft carries a turbine wheel. A nozzle is arranged to spray pressurized lubricating oil against the turbine wheel for rotation thereof and of the centrifugal rotor.
    Type: Grant
    Filed: April 15, 2004
    Date of Patent: August 9, 2005
    Assignee: Alfa Laval Corporate AB
    Inventors: Thomas Eliasson, Leif Bengtsson, Ingvar Hällgren, Stefan Szepessy, Jan Skoog
  • Publication number: 20040231446
    Abstract: A device to be used with an adjusting element comprising a rod piston (3) displaceable with the aid of a motor (4) in a piston tube (2). The motor (4) is rotatably arranged at the adjusting element (1) through a worm gear (6), either directly or through a motor attachment (5), wherein the motor (4) extends in an extension plane in parallel with the piston tube (2), said worm gear (6) having a throat formation (7) for axial fixation of the position of the motor (4) in the adjusting element (1) while a free rotation of the motor (4) is practicable through 360° in order to make possible, in applications with limited space, an eligble position fixation of the motor (4) in a predetermined angle in relation to the adjusting element (1).
    Type: Application
    Filed: April 5, 2004
    Publication date: November 25, 2004
    Inventors: Goran Magnusson, Leif Bengtsson
  • Patent number: 6224533
    Abstract: A flexible metal support device for a rotatable centrifuge rotor (2) provided in a frame member (1) by a bearing member (4). The support device comprises a support element (7) provided between the bearing member (4) and the frame member (1), and arranged to absorb relative movements between the centrifuge rotor and the frame member. The support element (7) comprises an inner mounting portion, essentially immovable in relation to the bearing member (4), and an outer mounting portion, essentially immovable in relation to the frame member (1). Moreover, the support element (7) comprises three flexible connecting portions which each extends between the inner and outer mounting portions and is arranged to absorb radial and axial relative movements between the centrifuge rotor and the frame member. Furthermore, the inner portion, the connecting portions and the outer portion form an integrated unit manufactured in one piece of metal material.
    Type: Grant
    Filed: June 10, 1998
    Date of Patent: May 1, 2001
    Assignee: Alfa Laval AB
    Inventors: Leif Bengtsson, Staffan Grandin, Jonas Hjelm, Kjell Klintenstedt, Torbjörn Larsen, Nils-Gunnar Ohlson, Jan Setterberg
  • Patent number: 6208387
    Abstract: A device and method for generation of digital advertisement displays in real time in digital TV-transmissions. In such digital TV-transmissions, a digital coding of the image material is made before the transmission is made; this coding compresses the content of the image as much as possible to minimize necessary bandwidth utilization at transmission of the signals. In connection with this coding and by means of pattern recognition, different patterns are identified for predefined objects in the image material, such as for example identifying an object with an unique coloring. Via the pattern identification, the image coder obtains information via a table of what the original object looks like. Also included in the table is information about which advertisement display is to be placed inside the identified object.
    Type: Grant
    Filed: March 31, 1999
    Date of Patent: March 27, 2001
    Assignee: Telia AB
    Inventors: Peter Magnusson, Leif Bengtsson
  • Patent number: 4757243
    Abstract: Method and means for a regulator for the servo control of a marine craft, for instance a torpedo, with variable speed and angle of attack. A first sensor (1) monitors the angle of attack, while a second sensor (8) monitors the depth of the craft. A revolution counter (3) and a filter (4) create an acceleration-compensating signal which is subtracted from an angle-of-attack signal emitted by the first sensor (1), whereupon the signal is transmitted to a rudder servo system.
    Type: Grant
    Filed: May 1, 1986
    Date of Patent: July 12, 1988
    Assignee: Affarsverket FFV
    Inventors: Leif Bengtsson, Nils Danielsson
  • Patent number: RE40870
    Abstract: A device to be used with an adjusting element comprising a rod piston (3) displaceable with the aid of a motor (4) in a piston tube (2). The motor (4) is rotatably arranged at the adjusting element (1) through a worm gear (6), either directly or through a motor attachment (5), wherein the motor (4) extends in an extension plane in parallel with the piston tube (2), said worm gear (6) having a throat formation (7) for axial fixation of the position of the motor (4) in the adjusting element (1) while a free rotation of the motor (4) is practicable through 360° in order to make possible, in applications with limited space, an eligible position fixation of the motor (4) in a predetermined angle in relation to the adjusting element (1).
    Type: Grant
    Filed: May 9, 2008
    Date of Patent: August 18, 2009
    Assignee: Reac AB
    Inventors: Goran Magnusson, Leif Bengtsson