Electrical transmission or interconnection systems – Miscellaneous systems
Patent
1986-10-22
1989-12-26
Shoop, Jr., William M.
Electrical transmission or interconnection systems
Miscellaneous systems
307147, 248522, 248521, 108 20, 108 21, A47G 3312
Patent
active
048900087
ABSTRACT:
This invention relates to a type of multi-function automatic revolving Christmas tree base. Its rotation directions can be changed automatically by means of a DC motor transmission to drive the revolving cylinder of the Christmas tree, which drives a two-way exchanging mechanism to change the polarities of the input current from the DC motor, so that the DC motor can rotate in positive and reverse directions. On the outer walls of the revolving cylinder are two conductive copper collars in connection with outer power source. Part of the two conductive copper collars is extending upwards through the wall of the revolving cylinder and in connection with another socket, which can serve as the power source of the lamps on the Christmas tree. Therefore, when Christmas tree is turning in one direction, there is no worry of the winding and knotting of the power cords.
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Ip Paul
Shoop Jr. William M.
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