Sliding shell mechanism for a hollow puzzle

Details Sliding shell mechanism for a hollow puzzle Sliding shell mechanism for a hollow puzzle

2005-09-23

2008-10-21

Wong, Steven (Department: 3711)

Amusement devices: games

Puzzles

Jumping movement

Reexamination Certificate

active

07438290

ABSTRACT:
A sliding shell mechanism includes a circumferential band, and a pair of portions attachable to the circumferential band, each portion having formed on an edge portion thereof an annular groove, the grooves being sized and configured to slidingly and matingly receive tongue portions of the circumferential band. The disclosed sliding shell mechanism may include additional circumferential bands and provide a hollow interior portion in which electronic circuits may be disposed.

REFERENCES:
patent: 4441715 (1984-04-01), Titus
patent: 4522401 (1985-06-01), Gustafson
patent: 4557484 (1985-12-01), Sherman et al.
patent: 4856786 (1989-08-01), Gyovai
patent: 4865323 (1989-09-01), Heusinkveld
patent: 4889340 (1989-12-01), Greene
patent: 6244597 (2001-06-01), Matijek
patent: 6422559 (2002-07-01), Utkin
patent: 6592122 (2003-07-01), Ikenaga
patent: 6857632 (2005-02-01), Tanner
patent: 2515972 (1983-05-01), None
patent: WO 8101638 (1981-06-01), None

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