Patents by Inventor Edwin M. Tate

Edwin M. Tate 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).

  • Adjustable plumb level
    Patent number: 5177873
    Abstract: An adjustable plumb level having a first gear driven by a second gear. The second gear has a smaller external diameter than does said first gear. The second gear is operatively coupled to first gear so that when an external force causes the second gear to rotate, the first gear also rotates. The first gear includes a straight vial disposed in the center thereof.
    Type: Grant
    Filed: April 1, 1992
    Date of Patent: January 12, 1993
    Inventor: Edwin M. Tate
  • Adjustable plumb/level
    Patent number: 5111589
    Abstract: An adjustable plumb level formed from an I beam with wood side panels. A circular hole is formed through the I beam and side panels, within which an indicating mechanism is disposed. The indicating mechanism is easily replaceable so that the present invention can be used as a plumb or a level.
    Type: Grant
    Filed: September 26, 1991
    Date of Patent: May 12, 1992
    Inventor: Edwin M. Tate