Patents by Inventor Lorenz Etzweiler

Lorenz Etzweiler 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).

  • Damping unit for an elevator
    Patent number: 9718645
    Abstract: An elevator damping unit, for reducing vertical oscillation of an elevator car during a standstill period, has brake shoe retainers provided with brake shoes. The brake shoe retainers are connected to an electric motor via a toothed gear mechanism. The damping unit also includes a spring device configured as a metallic bending spring and arranged between the car and a carrier structure for the brake shoe retainers.
    Type: Grant
    Filed: May 24, 2013
    Date of Patent: August 1, 2017
    Assignee: Inventio AG
    Inventors: Hans Kocher, Lorenz Etzweiler
  • Damping unit for an elevator
    Patent number: 9714157
    Abstract: An elevator damping unit for reducing vertical oscillations of an elevator car when at a standstill, has brake shoe retainers provided with brake shoes. The brake shoe retainers are connected to a common electric motor via a toothed gear mechanism. The toothed gear mechanism has a central driving gearwheel, which adjoins a drive shaft of the motor, and eccentric gearwheels, which are each assigned to one of the brake shoes and are in operative connection with the driving gearwheel. The brake shoes are supported resiliently on the respective brake shoe retainers in each case via two helical compression springs.
    Type: Grant
    Filed: May 24, 2013
    Date of Patent: July 25, 2017
    Assignee: Inventio AG
    Inventors: Lorenz Etzweiler, Hans Kocher
  • DAMPING UNIT FOR AN ELEVATOR
    Publication number: 20150151949
    Abstract: An elevator damping unit, for reducing vertical oscillation of an elevator car during a standstill period, has brake shoe retainers provided with brake shoes. The brake shoe retainers are connected to an electric motor via a toothed gear mechanism. The damping unit also includes a spring device configured as a metallic bending spring and arranged between the car and a carrier structure for the brake shoe retainers.
    Type: Application
    Filed: May 24, 2013
    Publication date: June 4, 2015
    Inventors: Hans Kocher, Lorenz Etzweiler
  • DAMPING UNIT FOR AN ELEVATOR
    Publication number: 20150144435
    Abstract: An elevator damping unit for reducing vertical oscillations of an elevator car when at a standstill, has brake shoe retainers provided with brake shoes. The brake shoe retainers are connected to a common electric motor via a toothed gear mechanism. The toothed gear mechanism has a central driving gearwheel, which adjoins a drive shaft of the motor, and eccentric gearwheels, which are each assigned to one of the brake shoes and are in operative connection with the driving gearwheel. The brake shoes are supported resiliently on the respective brake shoe retainers in each case via two helical compression springs.
    Type: Application
    Filed: May 24, 2013
    Publication date: May 28, 2015
    Inventors: Lorenz Etzweiler, Hans Kocher