Combination of block units

Details Combination of block units Combination of block units

1976-01-08

1977-02-15

Skogquist, Harland S.

Amusement devices: games

Aerial projectile game; game element or accessory therefor...

Target

35 27, 52394, 273157R, A63H 3308

Patent

active

040075559

ABSTRACT:
A combination of block units comprising: a generally H-shaped block unit having a configuration including two symmetrical grooves extending in Y-axis direction in a basic rectangular parallel-piped having X-, Y- and Z-axes intersecting with the right angle with each other, each of the grooves has a base wall which is parallel with X-axis and oppositely inclining side walls intersecting with the base wall with an acute angle, the distance between the centerlines extending in the Y-axis direction on the side walls being half of the length of the parallel-piped in the X-axis direction, a generally T-shaped block unit having a configuration attained by bisecting the H-shaped block unit along the X- and Z-axes thereof, a generally U-shaped block unit having a configuration attained by bisecting the H-shaped block unit along the X- and Y-axes thereof, and a generally T-shaped block unit having a configuration complementary to the U-shaped block unit.

REFERENCES:
patent: 645800 (1900-03-01), Furness
patent: 1292188 (1919-01-01), Wheeler
patent: 1361501 (1920-12-01), Schepmoes
patent: 2016382 (1935-10-01), McBurney
patent: 2099149 (1937-11-01), Turnquist
patent: 3562988 (1971-02-01), Gregoire

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