Sphere and rod construction toy

Details Sphere and rod construction toy Sphere and rod construction toy

1994-03-16

1996-01-30

Hafer, Robert A.

Amusement devices: toys

Construction toy

Interfitting elements

446102, A63H 3312

Patent

active

054876915

ABSTRACT:
A construction toy comprises generally spherical construction members having threaded openings provided thereon and rod members having extensible and contractible screw members provided at each end thereof. Five threaded openings are disposed at both the upper and lower hemispheres of the spherical members. One of the five threaded openings is disposed along a central vertical axis whereas the other four at an angle of 45 degree from the axis. Four to eight threaded openings are disposed along the equator of the spherical members. Each end of the rod member has an extensible and contractible screw and a screw fastening device. A variety of patterns, models, and objects can be constructed by using the spherical and rod construction members.

REFERENCES:
patent: Re33785 (1991-12-01), Hildebrandt et al.
patent: 1113371 (1914-10-01), Pajeau
patent: 2962820 (1960-12-01), Petersen
patent: 2970388 (1961-02-01), Yonkers
patent: 3286391 (1966-11-01), Mengeringhausen
patent: 3998003 (1976-12-01), Rosenbaum
patent: 4129975 (1978-12-01), Gabriel
patent: 4781644 (1988-11-01), Yoshida

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