Patent ID: 7384207

Claim:
An improved hand-held implement comprising: an ergonomic assembled body having: a first curved body panel having a first inner surface and a first outer surface, and a second curved body panel, having a second inner surface and a second outer surface, attached to said first body panel forming said ergonomic assembled body, a portion of the first and second inner surfaces of said assembly body defining an elongated cartridge housing therebetween, said elongated cartridge housing extends longitudinally and coaxially along a first axis of said assembled body; an elongated cartridge coaxially retained within said cartridge housing, said cartridge having a tip; and a spring biased plunger positioning in another portion of the first and second inner surfaces of said assembly body and extending longitudinally and coaxially along a second axis of said assembly body, said second axis generally perpendicularly intersecting said first axis, said plunger having an inclined angled surface formed on an end thereof and biased against an end of the cartridge such that depression of the plunger alternately extends and retracts the tip of said cartridge out of or into said assembly body, wherein said first and second outer surfaces define: a bottom portion from which said elongated cartridge extends or retracts, and an opposed top portion, a forward surface extending between said bottom and top portions, said forward surface being adapted to be engaged by, and extend in a direction substantially parallel to, the index finger of a user, first and second opposed side surfaces extending between said bottom and top portions and rearward from said forward surface, said first side surface being adapted to engage the thumb of a user, said second side surface being adapted to engage another finger of a user, and a rearward surface, said first and second side surfaces extending between said forward surface and said rearward surface, said forward and rearward surfaces being contiguous and generally perpendicular to said side surfaces.