Patents by Inventor Albert Pfeiffer

Albert Pfeiffer 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).

  • Free-fall winch with a service and holding brake
    Patent number: 10087056
    Abstract: A winch is provided that includes a frame and a winch drum mounted for rotation relative to the frame; a gearing via which the winch drum can be rotated by a drive motor attached to the winch, wherein the gearing includes a gear shaft; a first brake that includes a first brake body and a second brake body which is non-rotationally connected to the gear shaft. The first and second brake bodies can be pressed against each other in order to achieve a braking effect based on frictional engagement. A second brake is also provided that includes a third brake body and a fourth brake body which is non-rotationally connected to the gear shaft and/or the second brake body. The third and fourth brake bodies can be pressed against each other in order to achieve a braking effect based on frictional engagement.
    Type: Grant
    Filed: December 3, 2015
    Date of Patent: October 2, 2018
    Assignee: Zollern GmbH & Co. KG
    Inventors: Roland Hartmann, Albert Pfeiffer
  • Free-Fall Winch With A Service and Holding Brake
    Publication number: 20160159626
    Abstract: A winch is provided that includes a frame and a winch drum mounted for rotation relative to the frame; a gearing via which the winch drum can be rotated by a drive motor attached to the winch, wherein the gearing includes a gear shaft; a first brake that includes a first brake body and a second brake body which is non-rotationally connected to the gear shaft. The first and second brake bodies can be pressed against each other in order to achieve a braking effect based on frictional engagement. A second brake is also provided that includes a third brake body and a fourth brake body which is non-rotationally connected to the gear shaft and/or the second brake body. The third and fourth brake bodies can be pressed against each other in order to achieve a braking effect based on frictional engagement.
    Type: Application
    Filed: December 3, 2015
    Publication date: June 9, 2016
    Applicant: Zollern GmbH & Co. KG
    Inventors: Roland Hartmann, Albert Pfeiffer