Amusement devices: toys – Operated by relatively moving fluid or pressure differential – Including motorized fan
Patent
1993-02-03
1994-05-24
DeMille, Danton D.
Amusement devices: toys
Operated by relatively moving fluid or pressure differential
Including motorized fan
446 34, 446168, 446179, 446176, 40406, 40409, 40439, A63H 2310, G09F 1902
Patent
active
053143680
ABSTRACT:
A toy or display suspends a ball in mid-air and moves the ball in a closed path without any visible means of support above a housing. The ball is moved radially toward, and alternately away from, a central housing axis, and may also be raised and lowered in elevation during its travel along the path.
REFERENCES:
patent: 2055498 (1936-09-01), Jacobs
patent: 2100690 (1937-11-01), Andler
patent: 2464460 (1949-03-01), Pack
patent: 3115343 (1963-12-01), Lemchon
patent: 4193470 (1980-03-01), Logan
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