Patents by Inventor James W. Bloomer, II

James W. Bloomer, II 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).

  • Apparatus for measurement of sliding friction using gyroscopic mass
    Patent number: 4498329
    Abstract: A sphere with a hole through one diameter is held in a spherical chamber hin a tube. The axis of the tube and the hole through the sphere are out of alignment by some predetermined angle, .theta.. The sphere is held within the chamber and the entire unit is caused to spin. The sphere is released while the unit is still spinning. The gyroscopic nutation of the sphere causes the spherical bore to traverse the angle .theta. and align with the tubular bore in a time dependent upon the sliding friction between the material of the sphere and the material of the spherical chamber.
    Type: Grant
    Filed: May 20, 1983
    Date of Patent: February 12, 1985
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: James W. Bloomer, II, Robert H. Nunn