Light display device with travelling balls and compound rotation

Details Light display device with travelling balls and compound rotation Light display device with travelling balls and compound rotation

1981-01-29

1982-12-14

Nelson, Peter A.

Illumination

Light source and modifier

Tiltable or rotatable as a unit

362 32, 362216, 362275, 362252, 362806, 362361, F21V 2126

Patent

active

043641067

ABSTRACT:
A rigid assembly of hollow tubes is caused to rotate simultaneously about vertical and horizontal axes while illuminated from below by a stationary light source. Balls confined within the tubes travel within said tubes during the rotational motion.

REFERENCES:
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patent: 2343598 (1944-03-01), Wagner
patent: 2433747 (1947-12-01), Dupler
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patent: 3111057 (1963-11-01), Cramer
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patent: 3711698 (1973-01-01), Hess
patent: 3760176 (1973-09-01), Trop
patent: 4146919 (1979-03-01), Jennings
patent: 4177503 (1979-12-01), Anguetin
patent: 4316120 (1982-02-01), Cotman et al.

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