Load controlling receiver

Claim 2

A noise immune load controller comprising: a low voltage alternating current power distribution line including a ground conductor, a control signal conductor, said ground conductor and control signal conductor forming a composite line; and remote control means coupled to said control signal line and responsive to signals transmitted over said control signal line, said remote control means including a power switching mechanism for selectively coupling low voltage power distribution line to a load and further including switching delay means so that a susceptibility of said load to noise signals on said composite line is reduced, whereby said load is selectively energized in response to remotely generated control signals of said composite line.

Claim 3

A noise immune load controller as in claim 1, wherein: said remote control means includes first and second resonant circuits, each of said resonant circuits including capacitor means and inductor means, said first resonant circuit tuned to resonate at a first discrete frequency and said second resonant circuit tuned to resonate at a second discrete frequency.

Claim 4

A noise immune load controller as in claim 1 wherein: said remote control means includes a pair of electronic switching elements coupled across said low voltage power distribution line said electronic switching elements controllable independently of one another; and said switching delay means includes self-sustaining relay means driven by said electronic switching element for operating said power switching mechanism.

Claim 5

A noise immune load controller as in claim 1, wherein: said control signal line includes said ground conductor of said low voltage power distribution line.

Claim 6

A noise immune load controller as in claim 4, wherein: said remote control means includes first and second resonant circuits, each of said resonant circuits including capacitor means and inductor means, said first resonant circuit tuned to resonate at a first discrete frequency and said second resonant circuit tuned to resonate at a second discrete frequency.

Claim 7

A load controller as in claim 4 wherein: said remote control means includes a pair of electronic switching elements coupled across said low voltage power distribution line said electronic switching elements controllable independently of one another; and said switching delay means includes self-sustaining relay means driven by said electronic switching elements for operating said power switching mechanism.

Claim 8

A noise immune load controller as in claim 3, wherein: said self-sustaining relay means is a thermal relay.

Claim 9

A noise immune load controller as in claim 3, wherein: said self-sustaining relay means is a DC electromagnetic relay.

Claim 10

A noise immune load controller as in claim 3, wherein: said self-sustaining relay is an AC electromagnetic relay.

Claim 11

A noise immune load controller as in claim 2 further comprising: first and second electronic switching means coupled to and controlled by said first and second resonant circuits respectively; said switching delay means including first and second heating elements coupled to and energized by said first and second electronic switching means respectively; and thermal relay means actuated by said first and second heating elements.

Claim 12

A noise immune load controller comprising: a low voltage alternating current power distribution line including a ground conductor; a control signal conductor said ground conductor and said control signal conductor forming a composite line; a central control unit controlling a control signal converter to impress a variable frequency control signal onto said composite line; remote control means including a tuned receiver coupled to said low voltage alternating current power distribution line in response to said variable frequency control signals transmitted over said composite line to selectively couple said low voltage alternating current power distribution line to a load; means to prevent a coupling of said low voltage alternating current power distribution line to said load for a delay period so that a susceptibility of said remote control means to electrical noise on said composite line is reduced; whereby said load is selectively energized in response to control signals generated over said composite line by said central control unit and said control signal coverter.

Claim 13

A noise immune load controller comprising: a low voltage alternating current power distribution line including a ground conductor; a control signal conductor said ground conductor and said control signal conductor forming a composite line; a central control unit controlling a control signal converter to impress a variable frequency control signal onto said composite line; remote control means including a tuned receiver coupled to said low voltage alternating current power distribution line in response to said variable frequency control signals transmitted over said composite line to selectively couple said low voltage alternating current power distribution line to a load; means to prevent a coupling of said low voltage alternating current power distribution line to said load for a delay period so that a susceptibility of said remote control means to electrical noise on said composite line is reduced; whereby said load is selectively energized in response to control signals generated over said composite line by said central control unit and said control signal coverter.