Control for christmas tree lighting

Claim 2

A Christmas tree lighting control including in combination a power supply having at least one solid state duty cycle unit said unit having an single output of selectively different fixed duty cycles, an electrical outlet electrically connected to said output for connecting thereto one or more strings of Christmas tree lights, a motor drive, control means movable by said drive to effect selectively and in predetermined sequence fixed changes in the duty cycle to said output without interruption of the circuit to said outlet.

Claim 3

A Christmas tree lighting control as claimed in claim 1 wherein the said solid state duty cycle unit in said power supply includes a resistor controlled gate triggering circuit with the resistence value of said resistor controlling the duty cycle rate of said unit, said control being operative to alter in fixed increments the resistance valve of said resistor when driven by said motor drive.

Claim 4

A Christmas tree lighting control as claimed in claim 1 wherein the said solid state duty cycle unit in said power supply includes resistor means for controlling the gate triggering circuit the value of said resistor means determining the duty cycle of said unit, said control means being operative, when driven by said motor drive, to intermittently short out fixed portions of said resistor means at predetermined intervals to alter selectively the duty interval of said unit.

Claim 5

A light intensity control for Christmas tree lighting including in combination, a power supply having at least one solid state duty-cycle unit, a gate triggering circuit for controlling the duty cycle rate of said unit, an electrical outlet continuously in circuit with said power supply for connecting thereto one or more strings of Christmas tree lights, resistor means connected for controlling the gate triggering circuit of said duty cycle unit, means for altering in fixed predetermined increments the resistance valuE of said resistor means without interruption of said continuous circuit between said power supply and said outlet.

Claim 6

A light intensity control for Christmas tree lighting including in combination, a power supply having at least one solid state duty-cycle unit, a gate triggering circuit for controlling the duty cycle rate of said unit, an electrical outlet continuously in circuit with said power supply for connecting thereto one or more strings of Christmas tree lights, resistor means connected for controlling the gate triggering circuit of said duty cycle unit, means for altering in fixed predetermined increments the resistance valuE of said resistor means without interruption of said continuous circuit between said power supply and said outlet.

Claim 7

A light intensity control as claimed in claim 4 wherein the resistance value of said resistor means is altered by sections of said resistor means being intermittently shorted out.

Claim 8

A light intensity control as claimed in claim 4 wherein movable means alter the resistance value of said resistor means by moving together successively in common electrical engagement contact members connected at resistance differing position along said resistor means to short out sections of said resistor means.

Claim 9

A light intensity control as claimed in claim 4 wherein the light intensity output of said connected Christmas tree lighting string is never deminished by more than 80 percent from full brightness.

Claim 10

A lighting control as claimed in claim 4 wherein movable means alter the resistance value of said resistor means by moving together in predetermined sequential order, control members connected at resistance differing positions along said resistor means.

Claim 11

A Christmas tree lighting control as claimed in claim 1 wherein the light intensity output of said Christmas tree lighting string is never diminished by more than 80 percent from full brightness.

Claim 12

A christmas tree lighting control including in combination a power supply having at least one solid state duty cycle unit, said unit having an output of selectively different fixed duty cycles, one or more strings of Christmas tree lights electrically connected to said output, control means operable to effect predetermined fixed changes in the duty cycle of said unit without interruption of the circuit to said Christmas tree string.

Claim 13

A christmas tree lighting control including in combination a power supply having at least one solid state duty cycle unit, said unit having an output of selectively different fixed duty cycles, one or more strings of Christmas tree lights electrically connected to said output, control means operable to effect predetermined fixed changes in the duty cycle of said unit without interruption of the circuit to said Christmas tree string.

Claim 14

A Christmas tree lighting control as claimed in claim 10 wherein the said solid state duty cycle unit in said power supply includes a resistor controlled gate triggering cricuit with the resistance value of said resistor controlling the duty cycle rate of said unit, said control being operative to alter in pre-established fixed increments the resistance valve of said resistor.

Claim 15

A Christmas tree lighting control as claimed in claim 10 wherein the light intensely output from said lighting string is never diminished by more than 80 percent from full brightness.

Claim 16

A Christmas tree lighting control including in combination a power supply having at least one solid state duty cycle unit, said unit having an output of selectively different substantially fixed duty cycles, means for maintaining one or more strings of Christmass tree lights electrically in circuit with said output with the light emitting intensity of said lighting string being determined by the duty cycle of said unit, control means operable to selectively effect predetermined fixed changes in the duty cycle of said output without interruption of the circuit to said lighting string.

Claim 17

A Christmas tree lighting control including in combination a power supply having at least one solid state duty cycle unit, said unit having an output of selectively different substantially fixed duty cycles, means for maintaining one or more strings of Christmass tree lights electrically in circuit with said output with the light emitting intensity of said lighting string being determined by the duty cycle of said unit, control means operable to selectively effect predetermined fixed changes in the duty cycle of said output without interruption of the circuit to said lighting string.