Patents by Inventor David P. Devendorf

David P. Devendorf 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).

  • System and method for deadweight calibrating a dynamometer
    Patent number: 6009740
    Abstract: A system and method for deadweight calibrating a dynamometer having an output indicative of a motor action is provided. A weight cart has a base and defines a working axis non-parallel to the base. A hanger arm is adjustably mounted to the weight cart for movement relative to the weight cart along the working axis. The hanger arm has a loading surface for holding a plurality of calibration weights. The hanger arm loading surface is configured with respect to a loading surface on a dynamometer calibration arm such that movement of the hanger arm incrementally places the calibration weight on the calibration arm loading surface to simulate motor action and allow calibration of the dynamometer.
    Type: Grant
    Filed: February 21, 1998
    Date of Patent: January 4, 2000
    Assignee: Horiba Instruments, Inc.
    Inventors: David P. Devendorf, Richard Vetter, Shinji Noguchi, Tennyson Kwok