Automatic spinning device for displaying object

Details Automatic spinning device for displaying object Automatic spinning device for displaying object

2007-08-28

2007-08-28

Miller, William L. (Department: 3677)

Card, picture, or sign exhibiting

Display device with magnetically moved object

C040S406000

Reexamination Certificate

active

11621582

ABSTRACT:
An automatic spinning device for displaying objects which utilizes a novel winding-up mechanical is provided herein. The major characteristic of the winding-up mechanism lies in the use of magnetism to wind up the winding-up mechanism housed in an airtight space. Two concentric rings are arranged along the circumferential wall of the airtight space, with one outside the space and the other one inside the space. The two rings are equipped with magnets of opposite polarities so that, when the external one is turned, the internal one is turned automatically by the magnetic attraction force. The inner ring has gear teeth along its inner wall, which engages a gear assembly to wind up the winding-up mechanism of the device as the inner ring is turned along with the external ring.

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