Patent ID: 6386780
Filing Date: 2002-05-14
Classification: B43K

Abstract:
A press-action ball point pen, comprising:a) a hollow shank having an interior portion; b) a cartridge having an inner end; c) an elongated viewing window disposed on said hollow shank; d) operating mechanism means for operating said cartridge; e) printed sleeve means rotationally mounted in said hollow shank for rotation past said elongated viewing window; said operating mechanism comprising: i) cross-piece means disposed receiving said inner end of said cartridge; ii) pressing means disposed coaxial with said cross-piece means; iii) spring means supporting said cartridge; and iv) driving connection means engaging said cross-piece means, said pressing means, and said interior portion of said hollow shank, whereby each time said pressing means is pressed axially, compressing said spring means, said cross-piece means is axially displaced and rotated through a predetermined angle thereby causing rotation of said printed sleeve means past said elongated viewing window through said predetermined angle; f) mounting means for mounting said printed sleeve means in said hollow shank in an axially non-displaceable manner; said cross-piece means mounted in an axially displaceable manner relative to said printed sleeve means; and g) driving connection means including positive driving contours engaging said printed sleeve means and said cross-piece means.