Patents Assigned to Michael O. Sturm
  • Patent number: 4801151
    Abstract: A string tracking apparatus for archery arrows including an arrow having a hollow tubular shaft with a point attached to one end of the shaft. A nock is attached to the other end of the shaft and fletching is disposed near the nock for stabilizing the arrow in flight. A coil of flexible line is disposed within the hollow shaft. A hook-shaped catching structure is attached to the other end of the flexible line. The hook-shaped catching device is frictionally disposed around the front end of the shaft or around the front end of the point attached to the shaft.
    Type: Grant
    Filed: March 19, 1987
    Date of Patent: January 31, 1989
    Assignee: Michael O. Sturm
    Inventors: Michael O. Sturm, Frank A. Mika