Electrical transmission or interconnection systems – Plural load circuit systems
Patent
1986-02-05
1987-07-07
Shoop, Jr., William M.
Electrical transmission or interconnection systems
Plural load circuit systems
307 38, 307132R, 307 31, 315155, 315158, H02J 300
Patent
active
046789260
ABSTRACT:
This invention relates generally to ornamental lighting controls and particularly to a lighting control for Christmas tree lighting having preferably at least four duty cycle outputs and wherein the duty cycle pattern of each output differs, with respect to a predetermined time interval, from the duty cycle pattern of each of the other outputs of the control thereby to produce, in a plurality of ornamental lighting strings respectively connected to the outputs of the control, a coordinated condition of continuously changing light intensities between strings that occur in predetermined sequential time differing order to result in an overall lighting effect totally unobtainable by any other form of light controlling apparatus.
The present device is an improvement over applicant's U.S. Pat. Nos. 4,057,735 and 4,125,781, by providing a mechanism responsive to light intensity changes rather than rubbing resistance surfaces thereby a mechanism substantially free of wear or changes in operational characteristics as the result of wear.
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Ip Shik Luen Paul
Shoop Jr. William M.
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