국제 및 국내 특허문헌 검색

1. (WO1999039921) ELECTRO-MECHANICAL WRITING IMPLEMENT

Pub. No.:    WO/1999/039921    International Application No.:    PCT/US1999/002423
Publication Date: Fri Aug 13 01:59:59 CEST 1999 International Filing Date: Fri Feb 05 00:59:59 CET 1999
IPC: B43K 8/22
B43K 24/00
Applicants: GREENE, Michael
LANGMAN, Kirk
Inventors: GREENE, Michael
LANGMAN, Kirk
Title: ELECTRO-MECHANICAL WRITING IMPLEMENT
Abstract:
A pen (2) has a pen tip (18) and associated cartridge (24) that are automatically extended and retracted when an actuator switch (12, 20) is pressed by the user. A D.C. motor (28) is coupled to a gear reduction assembly (26) inside the pen housing to cause an attached threaded sleeve (8) to rotate within a stationary nut (10) to drive the tip and cartridge assembly forward or backward depending on the polarity of the electrical supply to the motor. Limit switches (30, 34) cause the tip and cartridge assembly to stop at proper locations. An alternate embodiment utilizes non-moving, skin conductive switches (50, 52) to operate the assembly.