Patents Assigned to Wittur Aufzugteile GmbH & Co.
  • Drive unit for a hoist
    Patent number: 6107714
    Abstract: A drive unit for a hoist, an elevator in particular, with a motor (6), a transmission (2), a breaking means (4) and a housing (8) is characterized in that said motor (6) and said breaking means are together arranged in said housing (8). Furthermore, at least one part of said transmission (2) can be arranged in said housing (8) as mounted or built-in transmission so that said housing (8) for the largest part also forms the transmission housing.
    Type: Grant
    Filed: June 15, 1998
    Date of Patent: August 22, 2000
    Assignee: Wittur Aufzugteile GmbH & Co.
    Inventor: Hubert Fischer
  • Drive unit for a hoisting apparatus, in particular for a passenger or freight elevator
    Patent number: 5435209
    Abstract: A drive unit for a hoisting apparatus and, in particular, a passenger or freight elevator, has a supporting structure, a drive motor, a brake apparatus and a planet gear. The planet gear is driven by the drive motor and has a housing jacket which forms the drive stage and bears a pulley on its periphery. The planet gear is supported by the supporting structure on both sides of the pulley. As opposed to a one-sided support, this results in a favorable load distribution. The brake apparatus is provided on the driven portion of the planet gear.
    Type: Grant
    Filed: June 23, 1993
    Date of Patent: July 25, 1995
    Assignee: Wittur Aufzugteile GmbH & Co.
    Inventor: Horst Wittur