Board where the voluntary advance is possible

Details Board where the voluntary advance is possible Board where the voluntary advance is possible

2007-04-12

2011-11-01

Shriver, II, J. Allen (Department: 3618)

Land vehicles

Wheeled

Coasters

C280S087050, C280S087041

Reexamination Certificate

active

08047556

ABSTRACT:
Disclosed herein is a board capable of voluntary forward movement. The board comprises: a pair of front and rear boards, each of which is integrated with a connecting step formed on its lower surface and has a connecting hole formed within the connecting step; a connecting assembly including a connecting pipe inserted into the connecting holes, fixing blocks rotatably coupled to both ends of the connecting pipe to integrally connect the front board and the rear board, each of the fixing blocks having a track groove, and coupling pins inserted into the track grooves through the connecting pipe to be in association with the connecting pipe so that the front and rear boards are rotated within limited angle ranges corresponding to predetermined widths of the track grooves; and voluntary advancement assemblies.

REFERENCES:
patent: 4955626 (1990-09-01), Smith et al.
patent: 6273440 (2001-08-01), Wilson
patent: 2007/0114743 (2007-05-01), Chen
patent: 10-0472049 (2005-03-01), None
patent: 10-0505754 (2005-08-01), None
patent: 10-2006-0028452 (2006-03-01), None

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