Patents by Inventor Dirk Heinrich Tegtmeier

Dirk Heinrich Tegtmeier 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: 7690483
    Abstract: Elevator comprising a car, a drive motor driving the car, a motor drive unit for controlling the drive motor and supplying power thereto, an encoder for sensing movement of the car, and an elevator rescue system for rescue operation in case of an emergency situation, wherein the elevator comprises one single encoder only for normal and rescue operation.
    Type: Grant
    Filed: January 11, 2005
    Date of Patent: April 6, 2010
    Assignee: Otis Elevator Company
    Inventors: Dirk Heinrich Tegtmeier, Michael Mann, Armando Servia, Ricardo Cano
  • Patent number: 7681693
    Abstract: Method for performing an elevator rescue run in an emergency situation, the elevator comprising and elevator car, a counter weight, a rope suspending the car and the counterweight, a drive motor, an emergency brake for stopping the car in an emergency situation, and a motor drive unit for supplying drive power to and for controlling the drive motor, having the following rescue run sequence steps: (a) operating the motor drive unit in a zero speed demand mode for holding the car at its present position; (b) lifting the brake, while holding the car in the zero speed demand mode; (c) determining the preferred movement direction of the car based on the power data as obtained by the motor drive unit; and (d) performing the rescue run in the direction of the determined preferred movement direction.
    Type: Grant
    Filed: January 11, 2005
    Date of Patent: March 23, 2010
    Assignee: Otis Elevator Company
    Inventors: Dirk Heinrich Tegtmeier, Herbert Karl Horbruegger, Michael Mann, Kristian Bernhard Wittjen
  • Patent number: 7549515
    Abstract: Elevator (2) comprising a car (4), a counterweight (6), a hoisting rope (8) for suspending the car (4) and the counterweight (6), a drive motor (10), a motor drive unit (26) for supplying the power to the drive motor (10), and a brake (18) for stopping the movement of the car (4) in an emergency situation, the elevator (2) further comprising an elevator rescue system (40), comprising an emergency power supply (42), an emergency brake switch (44) for connecting and disconnecting the power of the emergency power supply (42) to the brake (18), and an emergency drive switch (46) for connecting and disconnecting the power of the emergency power supply (42) to the drive motor (10), characterised in that the elevator rescue system (40) further comprises the motor drive unit (26) and a power line (74) connecting the emergency power supply (42) with the motor drive unit (26) and including the emergency drive switch (46).
    Type: Grant
    Filed: October 7, 2003
    Date of Patent: June 23, 2009
    Assignee: Otis Elevator Company
    Inventors: Dirk Heinrich Tegtmeier, Kristian Bernhard Wittjen
  • Patent number: 7523809
    Abstract: An elevator car (2) comprises a cover (14; 40) extending over at least a portion of the top surface of the car (24). The cover (14; 40) is mounted on a resilient support (28, 42). The car (2) further comprises means (32; 44) for detecting displacement of the cover corresponding to the weight of a person being applied to the cover. If such displacement is detected, normal operation of the car (2) is prevented.
    Type: Grant
    Filed: April 30, 2004
    Date of Patent: April 28, 2009
    Assignee: Otis Elevator Company
    Inventors: Andrés Monzón-Simón, Julián Cabañas Falcón, Fernando Del Rio Sanz, Antonio De Miguel Urquijo, Francisco Luis Sanz Delgado, Herbert Horbrügger, Peter Leo Herkel, Dirk Heinrich Tegtmeier
  • Publication number: 20080245619
    Abstract: An elevator car (2) comprises a cover (14; 40) extending over at least a portion of the top surface of the car (24). The cover (14; 40) is mounted on a resilient support (28, 42). The car (2) further comprises means (32; 44) for detecting displacement of the cover corresponding to the weight of a person being applied to the cover. If such displacement is detected, normal operation of the car (2) is prevented.
    Type: Application
    Filed: April 30, 2004
    Publication date: October 9, 2008
    Inventors: Andres Monzon-Simon, Julian Cabanas Falcon, Fernando Del Rio Sanz, Antonio De Miguel Urqulio, Francisco Luis San Delgado, Herbert Horbrugger, Peter Leo Herkel, Dirk Heinrich Tegtmeier
  • Publication number: 20080202859
    Abstract: Method for performing an elevator rescue run in an emergency situation, the elevator comprising and elevator car, a counter weight, a rope suspending the car and the counterweight, a drive motor, an emergency brake for stopping the car in an emergency situation, and a motor drive unit for supplying drive power to and for controlling the drive motor, having the following rescue run sequence steps: (a) operating the motor drive unit in a zero speed demand mode for holding the car at its present position; (b) lifting the brake, while holding the car in the zero speed demand mode; (c) determining the preferred movement direction of the car based on the power data as obtained by the motor drive unit; and (d) performing the rescue run in the direction of the determined preferred movement direction.
    Type: Application
    Filed: January 11, 2005
    Publication date: August 28, 2008
    Inventors: Dirk Heinrich Tegtmeier, Herbert Karl Horbruegger, Michael Mann, Kristian Bernhard Wittjen
  • Publication number: 20080185233
    Abstract: Elevator comprising a car, a drive motor driving the car, a motor drive unit for controlling the drive motor and supplying power thereto, an encoder for sensing movement of the car, and an elevator rescue system for rescue operation in case of an emergency situation, wherein the elevator comprises one single encoder only for normal and rescue operation.
    Type: Application
    Filed: January 11, 2005
    Publication date: August 7, 2008
    Inventors: Dirk Heinrich Tegtmeier, Michael Mann, Armando Servia, Ricardo Cano