HIGH PRECISION POSITIONING RULER WITH AN INDICATION PEN
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United States of America Patent
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N/A
Issued Date -
Oct 16, 2014
app pub date -
Apr 12, 2013
filing date -
Apr 12, 2013
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A high precision positioning ruler with an indication pen includes a ruler body having a longitudinal penetrating hole; a scale for indication of lengths being formed on a surface of the ruler body; a positioning unit being slidable along the longitudinal penetrating hole for being positioned to a point of the scale; the positioning unit having an pen for drawing points or lines to indicate lengths to be measured; a leveler and a verticality mater being installed on the ruler body for controlling the ruler to be positioned horizontally or vertically. In use of the ruler, the ruler resisted against a measuring surface; for horizontal measurement, the user views the leveler to control the horizontalness of the ruler; then the positioning unit being moved along the longitudinal penetrating hole to a desired length and then the pen is used to indicate the point.
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