Writing implement

Details Writing implement Writing implement

2007-06-19

2007-06-19

Huynh, Khoa D. (Department: 3751)

Coating implements with material supply

Projectable and retractable tool

By screw mechanism

C401S099000, C401S195000

Reexamination Certificate

active

10316005

ABSTRACT:
A writing implement1includes a sensor11and control circuitry13so that when the writing implement is brought into close proximity with an input screen, the writing tip3of the writing implement1is prevented from delivering ink to the input screen. This may be achieved in one embodiment by retracting the writing tip within the body of the writing implement, or by extending a stylus tip20beyond the writing tip3. In other embodiments, ink can be prevented from delivered to the input screen by a mechanism which disengages an ink reservoir5from the writing tip3of the writing implement1and/or, in the case of a ball-point pen type writing tip3, electromagnets26can be arranged to prevent rotation of an ink delivery ball22.

REFERENCES:
patent: 5434371 (1995-07-01), Brooks
patent: 5939702 (1999-08-01), Knighton et al.
patent: 6050735 (2000-04-01), Hazzard
patent: 6536972 (2003-03-01), Bramlett et al.
patent: 2001/0025289 (2001-09-01), Jenkins et al.
patent: 2002/0175903 (2002-11-01), Fahraeus et al.
patent: WO 01/61636 (2001-08-01), None

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