Back to results
US 2014/0170603 A1Published application
Line drawing apparatus
OwnerRobert W. Ranftlinventor
Life of this patent
Estimating the term…
Abstract
A line drawing apparatus includes a generally rectangular housing having a closed back, extending sides and a front panel. The front panel defines a screen aperture which is covered by a display screen. The inner surface of the display screen is coated with a phosphorescent material. A stylus is movably supported within the housing and includes an upwardly directed light source. As the stylus is moved, a lighted trace is produced on the display screen.
Claims17
A line drawing apparatus comprising:
- a base frame having an interior enclosed by a back, peripheral sides and a front;
- a clear display screen supported by said front, said display screen having an interior surface and an outer surface;
- a stylus having a light source;
- stylus movement means movably supporting said stylus such that said light source is directed toward said interior surface and said stylus is movable about said interior surface;
- stylus control means, coupled to said stylus movement means, for allowing a user to move said stylus;
- and
- a layer of light-responsive material formed on said display screen,
- said light source illuminating a portion of said display screen to form a visible path as said stylus is moved.
5 more elements
A line drawing device comprising:
- a base frame defining an enclosure having an interior bounded by a back, perimeter sides and a front panel;
- a display screen supported by said base frame, said display screen having an inner surface and an outer surface;
- a stylus including a light source;
- stylus moving means within said base for supporting said stylus such that said light source is directed toward said inner surface and said stylus is moveable within said base interior;
- and
- a layer of light-responsive material disposed upon said inner surface,
- said light source illuminating a small area of said light-responsive material to cause said light-responsive material to react in a visible manner and to produce a visible path as said light source is moved.
4 more elements
Dependencies are inferred from the claim text.