Patent ID: 6499896
Filing Date: 2002-12-31
Classification: B43K,B43L

Abstract:
A freehand writing instrument for holding a writing tip, said instrument being operable to draw said writing tip across a writing surface in one or more strokes, the instrument comprising:a case sized to be handheld and having a longitudinal axis extending between a distal and proximal end of said case; a motor mounted at said case; and an element mounted at the proximal end of said case and being driven by said motor to move periodically about a predetermined center reaching a maximum transverse displacement from said center, with said distal end of said case defined as a vertex said maximum transverse displacement being sized to subtend a displacement angle with respect to said longitudinal axis, said element having a holder adapted to transversely hold the writing tip at an orientation displaced from parallel to said longitudinal axis no more than said displacement angle, said element being operable to produce a periodic pattern on the writing surface during the strokes, said element having clearance to permit said writing tip to write with said case held at varying angles of inclination within a range of angles relative to said writing surface, the angle of inclination being adjustable to alter the periodic pattern.