WRITING DEVICE HAVING WRITING TIP AND STYLUS TIP

摘要

A combination writing device for marking on a capacitive touch screen and a paper substrate is disclosed. The device features a writing tip deployable through a hole in a conductive rubber stylus tip. The stylus tip connects to a distal end of a shaft housing the cartridge. The stylus tip may be held in place by a ring. Electric connection is formed from a human user, through the shaft, and to the stylus tip onto the touch screen when a sufficient contact patch if formed through pressing lightly on the stylus tip. The stylus tip may be coated with a protective material that adjusts the coefficient of friction and prevents carbon deposits on the touch screen. The writing tip (such as pen or pencil lead) moves from a working position where it extends through a central hole in the stylus tip to a retracted position where it is disposed within a hollow cavity formed by the stylus tip.

主权项

1. A writing device for use on both paper and electronic substrates, the writing device comprising:
a hollow shaft having a distal end and a proximal end along a longitudinal axis; a writing cartridge at least partially disposed within the hollow shaft and movable along the longitudinal axis between a writing position and a stylus position, the writing cartridge having a distal end corresponding with the distal end of the hollow shaft, and a proximal end corresponding with the proximal end of the hollow shaft; a writing tip located at the distal end of the writing cartridge; and a stylus tip connected to the distal end of the shaft, the stylus tip having an orifice centered along the longitudinal axis that opens into a cavity such that, when the writing cartridge is in the writing position, the writing tip extends beyond the cavity and through the orifice, but when the writing cartridge is in the stylus position, the writing tip is housed within the cavity.