Patents by Inventor Steven C. Hankin

Steven C. Hankin 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).

  • Means and method of sampling flow related variables from a waterway in an accurate manner using a programmable calculator
    Patent number: 4660422
    Abstract: A programmable calculator (20) is connected to a pumping sampler (12) by an interface circuit board (22). The calculator has a sediment sampling program stored therein and includes a timer (60) to periodically wake up the calculator. Sediment collection is controlled by a Selection At List Time (SALT) scheme in which the probability of taking a sample is proportional to its estimated contribution to total sediment discharge, or according to accumulated predicted sediment weight. Stage height is also measured and is recorded according to a set scheme.
    Type: Grant
    Filed: February 3, 1986
    Date of Patent: April 28, 1987
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Rand E. Eads, Mark R. Boolootian, Steven C. Hankin