Machine element or mechanism – Elements – Gear casings
Patent
1994-11-04
1997-02-04
Herrmann, Allan D.
Machine element or mechanism
Elements
Gear casings
74 8916, 74421R, 74526, 74DIG10, 40414, 40430, 384246, 384901, 403361, F16H 5702, G09F 1908
Patent
active
055987460
ABSTRACT:
A transmission assembly used to connect with a rotatable ornament or a toy to provide bilateral rotations for achieving their cosmetic effect comprises a casing enclosing a set of three pinions which are driven by a battery-operated electrical circuit therein. An elastic rectangular bar used to restrict the rotary extent of a first pinion will elastically obstruct the rotary movement of the pinion in order to provide continuous bilateral rotation and each turn of the bilateral rotation will exceed 360.degree. without making any noise. The noses of the spindles of the pinions are formed as tapering sockets or as tapering pointed plugs to enhance the intensity of the assembly. Most of the components in this assembly are made integrally of plastic material so as to reduce the time and cost to manufacture.
REFERENCES:
patent: 2282430 (1942-05-01), Smith
patent: 3991535 (1976-11-01), Keller et al.
patent: 4616164 (1986-10-01), Kenny et al.
patent: 4802372 (1989-02-01), Harrod et al.
patent: 4824416 (1989-04-01), Chun-Hoi et al.
patent: 4973891 (1990-11-01), Tzeng
patent: 4983890 (1991-01-01), Satoh et al.
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