Combination drawing/measuring pen

Details Combination drawing/measuring pen Combination drawing/measuring pen

2008-04-03

2009-06-16

Guadalupe-McCall, Yaritza (Department: 2841)

Geometrical instruments

Distance measuring

Of length by rolling contact

C401S194000

Reexamination Certificate

active

07546694

ABSTRACT:
A combination drawing/measuring pen constructed of an elongated, hollow body portion having a cavity therein, an aperture at a front end and an on/off switch at a rear end; a pen having a roller ball tip in the cavity operatively moving up and down by a first button protruding outside the cavity such that the roller ball tip may extend through the aperture for drawing; a sensor probe in the cavity operatively moving up and down by a second probe outside the cavity such that the sensor probe may extend through the aperture for measuring; a central processing unit (CPU) for calculating an output from the sensor probe; a LCD panel on the body portion for displaying a measurement from the sensor probe; and at least one battery in the cavity for powering the CPU and the LCD panel.

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