Patents by Inventor Pontus Claesson

Pontus Claesson 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: 8813590
    Abstract: The invention refers to coupling mechanism and a linear actuator incorporating such a mechanism for releasably interconnecting first and second mechanical members (1, 2), longitudinally movable relative to each other, a first one of said mechanical members (1) pivotably supporting an end (F) of a first link of a knee link mechanism (3), also incorporating a second link member (3b), which first and second link members are pivotally connected to another in a knee joint (E), a control rod (4) pivotally connected to said knee joint (E), the end (D) of the second link member (3b) remote from the knee joint (E) being connected to a hook arm (5), the opposite end of which is pivotally supported at a support point (B) stationary positioned relative to said first mechanical member (1), said hook arm (5) having a hook (5a) facing said second mechanical member and being in mechanical engagement (A) with a shoulder (6, 6?) on said second mechanical member (2) as long as the said knee joint (E) is kept in a substantially
    Type: Grant
    Filed: November 18, 2009
    Date of Patent: August 26, 2014
    Assignee: Aktiebolaget SKF
    Inventors: Pontus Claesson, Torbjörn Lövgren
  • Patent number: 8753085
    Abstract: A device for changing a pitch of a blade of an impeller/propeller is disclosed. The device includes a linear actuator, a first bearing and a second bearing, allowing a relative axial movement between the first bearing and second bearing. The first bearing is mounted between a supporting structure of the rotor shaft and a non-rotary mechanical element, allowing a relative rotation between the supporting structure and the linear actuator. The second bearing is mounted between the second portion and a lever having a rotary point. Operating the linear actuator leads to an angular movement of the lever causing a change of the pitch of a blade, and when operating the at least one linear actuator, a force is generated that acts upon the non-rotary element, so that the rotor shaft is unaffected by the force.
    Type: Grant
    Filed: December 19, 2008
    Date of Patent: June 17, 2014
    Assignee: Aktiebolaget SKF
    Inventors: Torbjorn Lovgren, Pontus Claesson
  • Patent number: 8621949
    Abstract: The invention concerns a safety device (1) for an actuator comprising a connection means (2) allowing a connection to a releasable holding means (5). The connection means (2) is fixed via a sacrificing means (3) to a supporting means (4), and a resilient means (7) is acting between the supporting means (4) and a supporting portion (8). An extension means (9) is fixed to the supporting means (4) via the connection means (2). The sacrificing means (3) has a mechanical strength such that the sacrificing means (3) breaks when subjected to a force exceeding a predetermined force, such that the extension means is no longer fixed to the supporting means and that a re-connection of the supporting means (4) and the releasable holding means (5) is made impossible. The predetermined force is lower than the mechanical strength of the extension means (9) and the supporting means (4). A linear actuator (13) comprising the safety device (1) is also provided.
    Type: Grant
    Filed: July 2, 2009
    Date of Patent: January 7, 2014
    Assignee: Aktiebolaget SKF
    Inventors: Torbjörn Lövgren, Pontus Claesson, Peter A Hansson
  • Publication number: 20110308342
    Abstract: The invention refers to coupling mechanism and a linear actuator incorporating such a mechanism for releasably interconnecting first and second mechanical members (1, 2), longitudinally movable relative to each other, a first one of said mechanical members (1) pivotably supporting an end (F) of a first link of a knee link mechanism (3), also incorporating a second link member (3b), which first and second link members are pivotally connected to another in a knee joint (E), a control rod (4) pivotally connected to said knee joint (E), the end (D) of the second link member (3b) remote from the knee joint (E) being connected to a hook arm (5), the opposite end of which is pivotally supported at a support point (B) stationary positioned relative to said first mechanical member (1), said hook arm (5) having a hook (5a) facing said second mechanical member and being in mechanical engagement (A) with a shoulder (6, 6?) on said second mechanical member (2) as long as the said knee joint (E) is kept in a substantially
    Type: Application
    Filed: November 18, 2009
    Publication date: December 22, 2011
    Inventors: Pontus Claesson, Torbjörn Lövgren
  • Publication number: 20110101806
    Abstract: The invention concerns a safety device (1) for an actuator comprising a connection means (2) allowing a connection to a releasable holding means (5). The connection means (2) is fixed via a sacrificing means (3) to a supporting means (4), and a resilient means (7) is acting between the supporting means (4) and a supporting portion (8). An extension means (9) is fixed to the supporting means (4) via the connection means (2). The sacrificing means (3) has a mechanical strength such that the sacrificing means (3) breaks when subjected to a force exceeding a predetermined force, such that the extension means is no longer fixed to the supporting means and that a re-connection of the supporting means (4) and the releasable holding means (5) is made impossible. The predetermined force is lower than the mechanical strength of the extension means (9) and the supporting means (4). A linear actuator (13) comprising the safety device (1) is also provided.
    Type: Application
    Filed: July 2, 2009
    Publication date: May 5, 2011
    Inventors: Torbjörn Lövgren, Pontus Claesson, Peter A. Hansson
  • Publication number: 20110038730
    Abstract: A device for changing a pitch of a blade of an impeller/propeller is disclosed. It comprises at least one linear actuator. A first bearing is mounted to a non rotary mechanical element with the first portion, and a second bearing is mounted to the second portion, allowing a relative axial movement between the first bearing and second bearing. The first bearing is mounted between a supporting structure of the rotor shaft and the non rotary mechanical element, allowing a relative rotation between the supporting structure and the at least one linear actuator. The second bearing is mounted between the second portion and a lever means having a rotary point at the supporting structure.
    Type: Application
    Filed: December 19, 2008
    Publication date: February 17, 2011
    Inventors: Torbjörn Lövgren, Pontus Claesson