Patents by Inventor Donald D. Daniel

Donald D. Daniel 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).

  • Multiple dumping integrator
    Patent number: 4030038
    Abstract: A multiple dumping integrator having several periodic dumping integrators, ll sharing the same analog-to-digital converter. A selector dumps each periodic dumping integrator in a regular sequence, choosing the longest running such integrator for the next dump.
    Type: Grant
    Filed: February 27, 1976
    Date of Patent: June 14, 1977
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Donald D. Daniel, Roger V. Wilcox
  • Acoustic refractors
    Patent number: 3957134
    Abstract: A refracting structure with passages of different shapes with some separation of adjacent passages provides a minimum of sound reflections. It can be designed in the form of spherically divergent lenses with passages with cross sections in the form of squares or of concentric circular slits, a cylindrically divergent lens with slit shaped passages, and in other forms. Stagger of ends of the passages is discussed.
    Type: Grant
    Filed: December 9, 1974
    Date of Patent: May 18, 1976
    Inventor: Donald D. Daniel