Patents by Inventor Klaus Grül

Klaus Grül 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: 9018549
    Abstract: A locking apparatus is disclosed for an electromechanical switching device having a manual actuation option. Furthermore, such a switching device is also disclosed. A robust, mechanically simple locking apparatus is provided which can be operated without a tool, as well as a correspondingly embodied switching device. The locking apparatus of at least one embodiment includes a combination of few interacting construction elements attuned to one another in terms of structure and function. In this apparatus, a locking element assumes a double function, by, on the one hand, securing the connection of the locking apparatus with the switching device and on the other hand preventing a change in position of the actuation element of the switching device.
    Type: Grant
    Filed: September 4, 2012
    Date of Patent: April 28, 2015
    Assignee: Siemens Aktiengesellschaft
    Inventors: Klaus Grül, Harald Krieger, Libor Krivanek
  • Publication number: 20130056336
    Abstract: A locking apparatus is disclosed for an electromechanical switching device having a manual actuation option. Furthermore, such a switching device is also disclosed. A robust, mechanically simple locking apparatus is provided which can be operated without a tool, as well as a correspondingly embodied switching device. The locking apparatus of at least one embodiment includes a combination of few interacting construction elements attuned to one another in terms of structure and function. In this apparatus, a locking element assumes a double function, by, on the one hand, securing the connection of the locking apparatus with the switching device and on the other hand preventing a change in position of the actuation element of the switching device.
    Type: Application
    Filed: September 4, 2012
    Publication date: March 7, 2013
    Applicant: Siemens Aktiengesellschaft
    Inventors: Klaus GRÜL, Harald KRIEGER, Libor KRIVANEK
  • Patent number: 8362374
    Abstract: An apparatus is disclosed for mutual interlocking of two switches, in particular circuit breakers. In at least one embodiment, the apparatus includes two plungers which each engage in one of the two switches and can be moved in the plunger longitudinal direction, wherein, when one switch is being switched on, the plunger which engages in this switch is moved by pivoting of a control disk from its nil-point position to its opening position. In at least one embodiment, the apparatus includes a blocking device which blocks pivoting of the other control disk by moving the plunger to its opening position. In order to achieve a maintenance-free apparatus, in at least one embodiment it is proposed that at least one blocking element of the blocking device is moved by the plunger when this plunger is being moved to its opening position, such that pivoting of the other control disk with respect to the other plunger, which is located in the nil-point position, is blocked.
    Type: Grant
    Filed: August 11, 2010
    Date of Patent: January 29, 2013
    Assignee: Siemens Aktiengesellschaft
    Inventors: Klaus Grül, Michel Hess, Harald Krieger
  • Patent number: 8269119
    Abstract: An apparatus is disclosed for mutually locking two switches, in particular circuit breakers, with two plungers which move in opposition to one another via a forced mechanical coupling. When one switch opens, one plunger is shifted into its opening position and the other plunger is shifted into its locking position. In order to achieve a maintenance-free apparatus, at least one embodiment of the invention proposes that each plunger has a toothed rack, which meshes with a gearwheel, on which in each case one radial lever is arranged. The levers are connected in articulated fashion to one another via a connecting rod and a stop lever is mounted in rotary fashion on each gearwheel and, when the plungers are located in the zero position, bears in each case against a fixing stop.
    Type: Grant
    Filed: April 30, 2010
    Date of Patent: September 18, 2012
    Assignee: Siemens Aktiengesellschaft
    Inventors: Klaus Grül, Michel Hess, Harald Krieger
  • Publication number: 20110036700
    Abstract: An apparatus is disclosed for mutual interlocking of two switches, in particular circuit breakers. In at least one embodiment, the apparatus includes two plungers which each engage in one of the two switches and can be moved in the plunger longitudinal direction, wherein, when one switch is being switched on, the plunger which engages in this switch is moved by pivoting of a control disk from its nil-point position to its opening position. In at least one embodiment, the apparatus includes a blocking device which blocks pivoting of the other control disk by moving the plunger to its opening position. In order to achieve a maintenance-free apparatus, in at least one embodiment it is proposed that at least one blocking element of the blocking device is moved by the plunger when this plunger is being moved to its opening position, such that pivoting of the other control disk with respect to the other plunger, which is located in the nil-point position, is blocked.
    Type: Application
    Filed: August 11, 2010
    Publication date: February 17, 2011
    Inventors: Klaus GRÜL, Michel Hess, Harald Krieger
  • Publication number: 20100276262
    Abstract: An apparatus is disclosed for mutually locking two switches, in particular circuit breakers, with two plungers which move in opposition to one another via a forced mechanical coupling. When one switch opens, one plunger is shifted into its opening position and the other plunger is shifted into its locking position. In order to achieve a maintenance-free apparatus, at least one embodiment of the invention proposes that each plunger has a toothed rack, which meshes with a gearwheel, on which in each case one radial lever is arranged. The levers are connected in articulated fashion to one another via a connecting rod and a stop lever is mounted in rotary fashion on each gearwheel and, when the plungers are located in the zero position, bears in each case against a fixing stop.
    Type: Application
    Filed: April 30, 2010
    Publication date: November 4, 2010
    Inventors: Klaus Grül, Michel Hess, Harald Krieger