Patents by Inventor Stefan Hofs

Stefan Hofs 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: 7537179
    Abstract: In at least one embodiment of the present invention a seat-belt retractor is provided. The seat-belt retractor comprises a locking system that is controlled by means of at least one vehicle-sensitive sensor. The sensor has an alignment mass for autonomous alignment and is configured to pivot on the seat-belt retractor when the angular installation position of the seat-belt retractor is changed and when the seat-belt is extended, the sensor can be fixed in position by a blocking device. The blocking device is friction-controlled by the rotation of the belt shaft in the extension direction. The blocking device includes a rotatably mounted blocking lever which can be displaced into a release position for the sensor by a control lever that is coupled to the belt shaft by a friction coupling when the belt shaft rotates in a retraction direction.
    Type: Grant
    Filed: December 22, 2007
    Date of Patent: May 26, 2009
    Assignee: Autoliv Development AB
    Inventors: Martin Schmidt, Stefan Hofs, Thomas Schneider, Miriam Ors, Santi Gasol, Jordi Casiano
  • Patent number: 7526889
    Abstract: The invention pertains to a trigger mechanism for handguns, particularly pistols, with a striking lever (2), a first striking spring (3) that is assigned to the striking lever (2) and serves for acting upon the striking lever (2) in the firing direction, a trigger (12) and a trigger rod (13) that is connected to the trigger (12) and releases the striking lever (2) in a tensioned position in order to fire a shot. In order to generate a constant firing energy with variable trigger resistances and trigger paths, the striking lever (2) is acted upon in the firing direction by a second striking spring (5) that is arranged parallel to the first striking spring (3).
    Type: Grant
    Filed: July 10, 2007
    Date of Patent: May 5, 2009
    Assignee: S.A.T. Swiss Arms Technology AG
    Inventors: Thomas Metzger, Stefan Höfs, Adrian Thomele
  • Patent number: 7458534
    Abstract: A pretensioner coupling for a seat belt retractor for a motor vehicle of a type having a belt shaft and a pretensioner drive for winding the belt shaft. The pretensioner coupling having a coupling latch movably arranged between a release position and an engagement position. The coupling latch produces a load-transmitting rotational connection between the belt shaft and the pretensioner drive when in the engagement position and movable out of the engagement position and into the release position to permit relative rotation between the belt shaft and the pretensioner drive.
    Type: Grant
    Filed: November 10, 2004
    Date of Patent: December 2, 2008
    Assignee: Autoliv Development AB
    Inventors: Michael Pech, Stefan Höfs
  • Publication number: 20080135665
    Abstract: In at least one embodiment of the present invention a seat-belt retractor is provided. The seat-belt retractor comprises a locking system that is controlled by means of at least one vehicle-sensitive sensor. The sensor has an alignment mass for autonomous alignment and is configured to pivot on the seat-belt retractor when the angular installation position of the seat-belt retractor is changed and when the seat-belt is extended, the sensor can be fixed in position by a blocking device. The blocking device is friction-controlled by the rotation of the belt shaft in the extension direction. The blocking device includes a rotatably mounted blocking lever which can be displaced into a release position for the sensor by a control lever that is coupled to the belt shaft by a friction coupling when the belt shaft rotates in a retraction direction.
    Type: Application
    Filed: December 22, 2007
    Publication date: June 12, 2008
    Applicant: AUTOLIV DEVELOPMENT AB
    Inventors: Martin Schmidt, Stefan Hofs, Thomas Schneider, Miriam Ors, Santi Gasol, Jordi Casiano
  • Publication number: 20080060247
    Abstract: The invention relates to a grip for a handgun, in particular a pistol, having a grip module (1) made of plastic and a metal carrier element (2) that is insertable into said grip module (1). In order to enable a simple and cost-effective adaptation to the widest variety of demands of the marksman, a magazine shaft (4), projecting downward from the grip module (1) and onto which is slipped a grip shell module (3), is formed as a part of the carrier element (2).
    Type: Application
    Filed: May 29, 2007
    Publication date: March 13, 2008
    Inventors: Adrian Thomele, Thomas Metzger, Stefan Hofs
  • Publication number: 20080010889
    Abstract: The invention pertains to a trigger mechanism for handguns, particularly pistols, with a striking lever (2), a first striking spring (3) that is assigned to the striking lever (2) and serves for acting upon the striking lever (2) in the firing direction, a trigger (12) and a trigger rod (13) that is connected to the trigger (12) and releases the striking lever (2) in a tensioned position in order to fire a shot. In order to generate a constant firing energy with variable trigger resistances and trigger paths, the striking lever (2) is acted upon in the firing direction by a second striking spring (5) that is arranged parallel to the first striking spring (3).
    Type: Application
    Filed: July 10, 2007
    Publication date: January 17, 2008
    Inventors: Thomas Metzger, Stefan Hofs, Adrian Thomele
  • Publication number: 20070221773
    Abstract: A pretensioner coupling for a seat belt retractor for a motor vehicle of a type having a belt shaft and a pretensioner drive for winding the belt shaft. The pretensioner coupling having a coupling latch movably arranged between a release position and an engagement position. The coupling latch produces a load-transmitting rotational connection between the belt shaft and the pretensioner drive when in the engagement position and movable out of the engagement position and into the release position to permit relative rotation between the belt shaft and the pretensioner drive.
    Type: Application
    Filed: November 10, 2004
    Publication date: September 27, 2007
    Inventors: Michael Pech, Stefan Hofs