Geometrical instruments – Distance measuring – By flexible tape
Patent
1988-06-27
1990-03-13
Cuchlinski, Jr., William A.
Geometrical instruments
Distance measuring
By flexible tape
242107, 2421074R, 33761, 33431, 33759, G01B 310
Patent
active
049073486
ABSTRACT:
A tape measure-type apparatus including a teardrop-shaped housing having a hollow interior. The housing has a rounded rear portion for storing a self-biased steel strip adapted to wind itself into a coil within the hollow interior of the rounded portion. The front portion of the housing is tapered in the form of a triangle whose base is the diameter through the center of the rounded portion and whose sides converge at the vertex to form the tape inlet/outlet opening. The edges of the housing along the triangular leg portions are relatively flat so that the apparatus can be laid on a flat surface on which length or distance is to be measured and used either right-side-up or up-side-down with equal facility for using either the top surface or the bottom surface of the tape strip for measurement purposes. In this matter, the top and bottom surfaces can be graduated in the same or different units adapted for one use on the top surface and a different and distinct use on the bottom surface. In the preferred embodiment, the graduations on the surfaces are adapted for use by airmen, pilots, navigators, seamen and the like. For example, both sides of the tape strip can be graduated in scales for measuring nautical miles, statute miles, and kilometers, and one side can be scaled for use with a conventional aeronautical chart such as a WAC chart while the other is scaled for use with a second different and distinct aeronautical chart or map having a different scale such as a SECTIONAL chart. A rod assembly is biased to a first position for normally gripping the edges of the tape for preventing it from automatically rewinding back up into a coil within the hollow interior. A push button portion of the rod assembly can be manually depressed for laterally shifting the rod assembly to a second position and releasing the tape to allow it to automatically rewind back up into the interior.
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Cuchlinski Jr. William A.
Gutierrez Diego F. F.
Padgett, Jr. Charles P.
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