Patents by Inventor Dahl David

Dahl David 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: 11919554
    Abstract: A mobile transport system for transporting objects in a technical system, includes a vehicle frame, a first wheel pair, a second wheel pair, and a third wheel pair, each having two wheels rotatable relative to the vehicle frame, and a swing frame pivotable about a swing axis extending in a transverse direction relative to the vehicle frame. The first wheels of the first wheel pair are attached to the vehicle frame, and the second wheels of the second wheel pair are attached to the swing frame. The third wheels of the third wheel pair are attached to a tilt frame pivotable relative to the swing frame about a tilt axis extending approximately in the longitudinal direction.
    Type: Grant
    Filed: December 17, 2020
    Date of Patent: March 5, 2024
    Assignee: SEW-EURODRIVE GMBH & CO. KG
    Inventors: Friedrich Manz, Jan-Patrick Ködderitzsch, Theodor Dahl, Joshua Gordon David Frisch
  • Publication number: 20070040111
    Abstract: Ion mobility spectrometer apparatus may include an ion interface that is operable to hold positive and negative ions and to simultaneously release positive and negative ions through respective positive and negative ion ports. A first drift chamber is operatively associated with the positive ion port of the ion interface and encloses an electric field therein. A first ion detector operatively associated with the first drift chamber detects positive ions from the first drift chamber. A second drift chamber is operatively associated with the negative ion port of the ion interface and encloses an electric field therein. A second ion detector operatively associated with the second drift chamber detects negative ions from said second drift chamber.
    Type: Application
    Filed: August 22, 2005
    Publication date: February 22, 2007
    Inventors: Scott Jill, Dahl David, Miller Carla, Tremblay Paul, McJunkin Timothy