Card – picture – or sign exhibiting – Changing exhibitor – Motor operated
Reexamination Certificate
2005-05-03
2005-05-03
Davis, Cassandra (Department: 3611)
Card, picture, or sign exhibiting
Changing exhibitor
Motor operated
C345S110000, C348S815000
Reexamination Certificate
active
06886281
ABSTRACT:
A display device, comprising a central shaft; at least one support arm, rotatably attached to the central shaft; and a cam member having at least one cam surface, the cam surface positioned so as to be engageable with at least one support arm, the cam member being movable at least axially in relation to central shaft. As the cam member moves axially of the central shaft, a cam surface contacts at least one support arm and moves it circumferentially around the central shaft. The shapes of the cam surfaces provide choreographed movement of the support arms. Visual elements may be attached to the support arms.
REFERENCES:
patent: 1221925 (1917-04-01), Trott
patent: 1566479 (1925-12-01), Horvath et al.
patent: 2063451 (1936-12-01), Lunoe et al.
patent: 2354605 (1944-07-01), Norman
patent: 2637936 (1953-05-01), Dale et al.
patent: 3377578 (1968-04-01), Ito
patent: 4802572 (1989-02-01), Shorey et al.
patent: 5063377 (1991-11-01), Smith
patent: 5141399 (1992-08-01), Duchesneau et al.
patent: 5142925 (1992-09-01), Fauvel
patent: 5535698 (1996-07-01), Trevisan
patent: 6009647 (2000-01-01), Feingold
patent: 6122983 (2000-09-01), Hoffman
patent: 6389719 (2002-05-01), Smith
Davis Cassandra
Jones Walker Waechter Poitevent Carrere & Denegre, LLP
Robotic Displays Corporation
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