Patents by Inventor William R. Austin

William R. Austin 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).

  • LIFT-ASSISTED MANHOLE COVER
    Publication number: 20080138153
    Abstract: A lift-assisted manhole cover assembly with a flush surface and external pivot shaft. The cover includes a mounting tab that extends beyond the general periphery of the cover. The mounting tab may be connected to a shaft that is threadedly engaged with the frame. A spring may be mounted between the frame and the mounting tab, for example, in a sleeve, to provide a mechanical assist in lifting the cover. The sleeve may be disposed outside the manhole opening where it does not block access to the manhole opening.
    Type: Application
    Filed: January 4, 2008
    Publication date: June 12, 2008
    Applicant: EAST JORDAN IRON WORKS, INC.
    Inventors: Jeremy I. Johnson, Lee M. Veldboom, Scott B. Beal, Herbert Carl Barnum, William R. Austin, James F. Malpass, Todd C. Loviska, Brian J. Rachwitz, Rex A. Garringer, John H. Snyder
  • Lift-assisted manhole cover
    Patent number: 7341398
    Abstract: A lift-assisted manhole cover assembly with a flush surface and external pivot shaft. The cover includes a mounting tab that extends beyond the general periphery of the cover. The mounting tab may be connected to a shaft that is threadedly engaged with the frame. A spring may be mounted between the frame and the mounting tab, for example, in a sleeve, to provide a mechanical assist in lifting the cover. The sleeve may be disposed outside the manhole opening where it does not block access to the manhole opening.
    Type: Grant
    Filed: May 24, 2006
    Date of Patent: March 11, 2008
    Assignee: East Jordan Iron Works, Inc.
    Inventors: Jeremy I. Johnson, Lee M. Veldboom, Scott B. Beal, Herbert Carl Barnum, William R. Austin, James F. Malpass, Todd C. Loviska, Brian J. Rachwitz, Rex A. Garringer, John H. Snyder
  • Electrical signal converter usable in triangular waveform generation
    Patent number: 4220927
    Abstract: A signal having instantaneous voltage values, defined by a peak-to-peak voltage magnitude and a D.C. offset voltage level, is converted into another signal having time corresponding waveform characteristics similar to the unconverted signal but having different instantaneous voltage values defined by a lesser peak-to-peak magnitude and/or another D.C. offset voltage level. This signal conversion is used by a triangle generator of the type employing an integrator, detector/control, and a switch so that triangular waveforms of any desired peak-to-peak magnitude and D.C. offset voltage level are produced independent of detector/control requirements.
    Type: Grant
    Filed: April 20, 1978
    Date of Patent: September 2, 1980
    Assignee: The Singer Company
    Inventor: William R. Austin