Patents by Inventor Franklin D. Mann

Franklin D. Mann 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).

  • Universal precision sine bar attachment
    Patent number: 4809441
    Abstract: An improved sine bar apparatus for the precise measurement of angles for machining operation. The sine bar apparatus comprises a flat, rectangular base which has an upper and a lower surface with four sides. A collet adapter extends from one side of the base at right angles thereto in a plane which is parallel to the upper surface of the base and there is at least one slot extending transversely of one side of the base. A reference bar is attached to one of the other sides of the base and has a support surface which extends above the upper surface of the base. An elongated, generally rectangular sine bar, which has a reference surface extending along one side, is pivotally connected to the base and is supported on the upper surface of the base. The sine bar is pivotally connected at a point intermediate its ends, though the transverse slot adjacent the side of which the reference bar is attached, and has one of its ends in contact with the support surface of the reference bar.
    Type: Grant
    Filed: March 9, 1988
    Date of Patent: March 7, 1989
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventor: Franklin D. Mann