Patents by Inventor Arthur C. Hagg

Arthur C. Hagg 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).

  • Elevator system having a drive sheave with rigid but circumferentially compliant cable grooves
    Patent number: 4013142
    Abstract: An elevator system including an elevator car, a counterweight, cables interconnecting the elevator car and counterweight, and a traction drive which includes a drive sheave over which the cables pass. The drive sheave has rigid but circumferentially compliant grooves for the cables. The cable grooves are defined by a plurality of circumferentially spaced sector or segment members. The sector members are connected to the hub portion of the drive sheave with a compliant arrangement which permits a predetermined independent circumferential deflection of each sector member in response to friction forces between the cables and groove surfaces produced by changes in the length of the cables as they pass over the drive sheave.
    Type: Grant
    Filed: October 7, 1975
    Date of Patent: March 22, 1977
    Assignee: Westinghouse Electric Corporation
    Inventor: Arthur C. Hagg