Patents by Inventor Walfried HOERMANN

Walfried HOERMANN 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: 10112813
    Abstract: A method and a safety brake for a lifting device, wherein a solenoid or another electromechanical actuator is used to actuate a pawl, where the position of the pawl is monitored via at least two switches or sensors, where the lowering motion of the load or the lifting device is monitored and the safety brake is triggered in the event of a fault via a safety-oriented controller and at least one sensor, where the solenoid or the pawl is arranged such that, via spring force and/or gravity, the pawl is brought into engagement when the actuator, for example, the solenoid, is deenergized such that it is possible to exactly define and monitor the limit speed and, by using the two sensors, it is also possible to monitor the function and the motion of the pawl and to detect undesired operating states.
    Type: Grant
    Filed: January 15, 2016
    Date of Patent: October 30, 2018
    Assignee: Siemens Aktiengesellschaft
    Inventors: Reudiger Heil, Eugen Staub, Walfried Hoermann
  • Publication number: 20180002148
    Abstract: A method and a safety brake for a lifting device, wherein a solenoid or another electromechanical actuator is used to actuate a pawl, where the position of the pawl is monitored via at least two switches or sensors, where the lowering motion of the load or the lifting device is monitored and the safety brake is triggered in the event of a fault via a safety-oriented controller and at least one sensor, where the solenoid or the pawl is arranged such that, via spring force and/or gravity, the pawl is brought into engagement when the actuator, for example, the solenoid, is deenergized such that it is possible to exactly define and monitor the limit speed and, by using the two sensors, it is also possible to monitor the function and the motion of the pawl and to detect undesired operating states.
    Type: Application
    Filed: January 15, 2016
    Publication date: January 4, 2018
    Inventors: Reudiger HEIL, Eugen STAUB, Walfried HOERMANN
  • Patent number: 9731946
    Abstract: A safety brake for a load lifting gear includes an actuator for a locking pawl, a brake-locking gear element connected to a lifting gear drive, pawl position monitoring sensors and a controller. The controller monitors the sensors and the lifting gear speed, and operates the lifting gear drive and the actuator to brake the lifting gear against excessive speed, by moving the actuator between energized and non-energized states and differentiating with sensor inputs among a detached state, a bearing state and a fully engaged state of the locking pawl with a pawl clearance of the brake-locking gear element.
    Type: Grant
    Filed: January 13, 2016
    Date of Patent: August 15, 2017
    Assignee: Siemens Aktiengesellschaft
    Inventors: RĂ¼diger Heil, Walfried Hoermann, Eugen Staub
  • Publication number: 20160207746
    Abstract: A safety brake for a load lifting gear includes an actuator for a locking pawl, a brake-locking gear element connected to a lifting gear drive, pawl position monitoring sensors and a controller. The controller monitors the sensors and the lifting gear speed, and operates the lifting gear drive and the actuator to brake the lifting gear against excessive speed, by moving the actuator between energized and non-energized states and differentiating with sensor inputs among a detached state, a bearing state and a fully engaged state of the locking pawl with a pawl clearance of the brake-locking gear element.
    Type: Application
    Filed: January 13, 2016
    Publication date: July 21, 2016
    Inventors: RĂ¼diger HEIL, Walfried HOERMANN, Eugen STAUB