Patents Assigned to STEINWEG
  • Building elevator
    Patent number: 6910553
    Abstract: A building elevator with an elevator mast and an elevator car with at least one electric drive motor for the elevator car for moving the same along the elevator mast. A novel overload-prevention device for the building elevator has two drive motors with the device intended for adding the forces occurring in the abutments of the drive motors and connected to a limit switch.
    Type: Grant
    Filed: August 7, 2000
    Date of Patent: June 28, 2005
    Assignee: Herman Steinweg GmbH Co. & KG Baumaschinenfabrik
    Inventors: Hartmut Löbbe, Frank Kolkmann
  • Construction hoist with optical monitoring device
    Patent number: 6615953
    Abstract: The invention relates to a building elevator having an elevator mast, which can be set up vertically, and having an elevator car which can be moved in the vertical direction along the elevator mast and has a least one motor drive with control means, and said building elevator is intended to be developed further such that it is ensured, in the simplest possible manner, that it is not possible for any individual or objects to be situated beneath the elevator car during the downward travel of the elevator car.
    Type: Grant
    Filed: August 8, 2000
    Date of Patent: September 9, 2003
    Assignee: Herman Steinweg GmbH & Co. KG Baumaschinenfabrik
    Inventor: Klaus Steinweg
  • MULTI-DRIVE SPECIALTY TOOL
    Publication number: 20010049983
    Abstract: A specialty tool having removable and interchangeable jaw members which are secured to the handles by twist locking. A ratchet gear and pawl are disposed at the pivot hub of the tool to lock the tool in a selected position. A releasing lever provides an option to the user to use the ratcheting action.
    Type: Application
    Filed: January 10, 2000
    Publication date: December 13, 2001
    Applicant: STEINWEG
    Inventor: Paul Steven Steinweg