Changeable grid system kit

Details Changeable grid system kit Changeable grid system kit

1991-11-15

1993-12-28

Yu, Mickey

Education and demonstration

Science

Physics

434300, 446118, 446168, G09B 2308, A63H 3308

Patent

active

052734366

ABSTRACT:
A changeable grid system kit for constructing three-dimensional toy and scale model designs, including a base component fabricated of a tough, resilient material, slots formed in the top face of the base, and slats which are insertable into the slots. The invention is designed to ensure that there is little or no loss in the tight fit between the slats and the base material after repeated insertion and removal of the slats. The base material is selected so as to avoid fracturing or splintering caused by repeated use or incidental contact. One such material is a closed-cell crosslinked polyethylene foam. In one embodiment of the invention, the base component is placed vertically such that the slats extend from the slots to form quasi-horizontal surfaces. In this orientation the present invention may be used as an educational tool to illustrate such physical principles as gravity, friction, and the like. A ball may be rolled down pathways created by insertion of the slats into the slots in a variety of configurations, thereby illustrating the principles noted and encouraging experimentation by the student.

REFERENCES:
patent: 271530 (1883-01-01), Spang
patent: 2023300 (1935-12-01), Barnett
patent: 2883764 (1959-04-01), Stephens
patent: 3280499 (1966-10-01), Studen
patent: 3286391 (1966-11-01), Mengeringhausen
patent: 3822499 (1974-07-01), De Vos
patent: 4270302 (1981-06-01), Dandia
patent: 4400906 (1983-08-01), Bove
patent: 4650437 (1987-03-01), Sitkus
patent: 4758195 (1988-07-01), Walsh

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