Erasable drawing board

Details Erasable drawing board Erasable drawing board

1998-12-31

1999-12-07

Nguyen, Kien T.

Education and demonstration

Means for demonstrating apparatus, product, or surface...

Chalkboard or equivalent means having easily erasable surface

434408, B43L 100

Patent

active

059973099

ABSTRACT:
A play strategy erasable screen assembly is provided including a housing and a display mechanism mounted thereon. The display mechanism includes an upper transparent layer, a thin compartment situated thereunder within an interior space of the housing, and a predetermined amount of metallic shavings situated within the compartment. A plurality of stamps are included each having magnets mounted thereon for being placed on the transparent layer of the display mechanism to adhere the metallic shavings on the transparent layer in a configuration similar to that in which the magnets are mounted on the stamps. Next provided is an erasure assembly for selectively removing the metallic shavings from the transparent layer.

REFERENCES:
patent: 4590381 (1986-05-01), Mendelson
patent: 5099594 (1992-03-01), Reas et al.
patent: 5263866 (1993-11-01), Campbell
patent: 5820385 (1998-10-01), Ohashi et al.
The Tate Slate. Thalatta, Inc. pp. 1-2, Feb. 21, 1985.

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