Patents by Inventor Isaac W. Hornsby

Isaac W. Hornsby 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).

  • Patent number: 4112581
    Abstract: Disclosed is a micrometer jig for measuring distances to close tolerances between a surface and a curved edge. The jig consists of a leg member with a socket at one end which slidably mounts an arm member in "T" relationship to the leg. A protractor housing is slidably mounted on the leg and pivotally mounts a protractor finger which projects from one side of the leg. A threaded stub shaft projects from the tail of the rotractor finger and carries a wing nut to releasably secure the finger in a particular angular disposition with respect to the leg member. The arm member carries a micrometer on the end adjacent the protractor finger so that accurate measurement can be achieved between a surface contacted by the micrometer and the apex of the angle formed by the leg member and protractor finger.
    Type: Grant
    Filed: June 23, 1977
    Date of Patent: September 12, 1978
    Inventor: Isaac W. Hornsby
  • Patent number: 4098486
    Abstract: A book support is swingably connected to a tray having end pieces which may be adjusted to support tray on a bathtub or on a bed. A stand or base member is also provided for supporting the tray in front of a seated person.
    Type: Grant
    Filed: March 31, 1977
    Date of Patent: July 4, 1978
    Inventor: Isaac W. Hornsby