US4918566A — Electronic control of solenoid operated circuit b…

Claim 1

Independent Claim 101 words

An electronic controller for controlling solenoid operated circuit breakers, used to provide electrical power to one or more electrical loads, coupled to a master controller through a common network line forming a bidirectional communication link therebetween, comprising: receiving means for receiving commands from said master controller over said common network line; control means for controlling said circuit breaker in accordance with the command from said master controller; and circuit breaker status determining means for determining the status of the circuit breaker independently of the electrical load to which the circuit breaker is connected to verify that the command was properly executed.

Claim 2

Dependent Claim 101 words

An electronic controller for controlling solenoid operated circuit breakers, used to provide electrical power to one or more electrical loads, coupled to a master controller through a common network line forming a bidirectional communication link therebetween, comprising: receiving means for receiving commands from said master controller over said common network line; control means for controlling said circuit breaker in accordance with the command from said master controller; and circuit breaker status determining means for determining the status of the circuit breaker independently of the electrical load to which the circuit breaker is connected to verify that the command was properly executed.

Claim 3

Dependent Claim 22 words

An electronic controller as recited in claim 1 further including means for transmitting the circuit breaker status back to the master controller.

Claim 4

Dependent Claim 25 words

An electronic controller as recited in claim 1 further including means for transmitting any unexpected changes in the circuit breaker status to the master controller.

Claim 5

Dependent Claim 32 words

An electronic controller as recited in claim 1 further including comparison means for determining if the current circuit breaker status is the same as the command status prior to executing the command.

Claim 6

Dependent Claim 32 words

An electronic controller as recited in claim 4 further including means responsive to said comparison means for actuating the circuit breaker only if the command status is different from said current status.

Claim 7

Dependent Claim 26 words

An electronic controller as recited in claim 1 wherein said circuit breaker status determining means includes means for monitoring an auxiliary contact on said circuit breaker.

Claim 8

Dependent Claim 23 words

An electronic controller as recited in claim 1 wherein said control means includes means for controlling a plurality of solenoid operated circuit breakers.

Claim 9

Dependent Claim 15 words

An electronic controller as recited in claim 7 wherein said plurality is an even number.

Claim 10

Dependent Claim 30 words

An electronic controller as recited in claim 8 wherein said control means includes means for controlling the circuit breakers such that only one circuit breaker is actuated at a time.

Claim 11

Dependent Claim 58 words

An electronic controller as recited in claim 9 wherein said control means includes means for actuating one-half of the total number of circuit breakers coupled to said electronic controller during positive half cycles of the source of alternating current electrical power and actuating the other one-half during negative half cycles of said source of alternating current electrical power.

Claim 12

Dependent Claim 29 words

An electronic controller as recited in claim 10 wherein said control means includes means for actuating two circuit breakers during one cycle during successive positive and negative half cycles.

Claim 13

Dependent Claim 19 words

An electronic controller as recited in claim 11 further including means for inhibiting the control means on alternate cycles.

Claim 14

Dependent Claim 92 words

An electronic controller for controlling solenoid operated circuit breakers coupled to a master controller through a common network line forming a bidirectional communication link therebetween, comprising: receiving means for receiving commands from said master controller over said common network line; control means for controlling said circuit breaker in accordance with the command from said master controller; circuit breaker status determining means for determining the status of the circuit breaker to verify that the command was properly executed; and means for synchronizing said current circuit breaker status determining means with a reference signal.

Claim 15

Dependent Claim 92 words

An electronic controller for controlling solenoid operated circuit breakers coupled to a master controller through a common network line forming a bidirectional communication link therebetween, comprising: receiving means for receiving commands from said master controller over said common network line; control means for controlling said circuit breaker in accordance with the command from said master controller; circuit breaker status determining means for determining the status of the circuit breaker to verify that the command was properly executed; and means for synchronizing said current circuit breaker status determining means with a reference signal.

Claim 16

Dependent Claim 20 words

An electronic controller as recited in claim 13 wherein said reference signal is a source of alternating current electrical power.

Claim 17

Dependent Claim 39 words

An electronic controller as recited in claim 14 wherein said current circuit breaker status determining means includes means for determining the status of the circuit breakers at or near the peaks of the source of alternating current electrical power.

Claim 18

Dependent Claim 33 words

An electronic controller as recited in claim 13 further including means for inhibiting said control means from actuating the circuit breakers at or near peaks of the source of alternating current electrical power.

Claim 19

Dependent Claim 27 words

An electronic controller as recited in claim 13 wherein said control means is adapted to control circuit breakers connected to a single phase source of electrical power.

Claim 20

Dependent Claim 43 words

An electronic controller as recited in claim 13 wherein said control means includes means for controlling the switching of the circuit breakers such that the circuit breakers are switched at or near the zero crossings of the course of alternating current electrical power.

Claim 21

Dependent Claim 26 words

An electronic controller as recited in claim 13 wherein said control means is adapted to control circuit breakers connected to a three-phase source of electrical power.

Claim 22

Dependent Claim 48 words

An electronic controller as recited in claim 13 wherein said control means includes means for controlling the switching of the circuit breakers such that the circuit breakers are switched at or near 60° of any positive or negative half cycle of the source of alternating current electrical power.

Claim 23

Dependent Claim 104 words

An electronic controller for controlling solenoid operated circuit breakers, used to supply alternating current electrical power to one or more electrical loads, having a status contact comprising: means for determining the circuit breaker status by determining whether the status contact is pen or closed independently of the electrical load to which the circuit breaker is connected; comparing means responsive to said determining means for comparing the current circuit breaker status with the desired circuit breaker status; and control means responsive to said comparing means for changing said circuit breaker status when the current circuit breaker status is different from the desired circuit breaker status.

Claim 24

Dependent Claim 104 words

An electronic controller for controlling solenoid operated circuit breakers, used to supply alternating current electrical power to one or more electrical loads, having a status contact comprising: means for determining the circuit breaker status by determining whether the status contact is pen or closed independently of the electrical load to which the circuit breaker is connected; comparing means responsive to said determining means for comparing the current circuit breaker status with the desired circuit breaker status; and control means responsive to said comparing means for changing said circuit breaker status when the current circuit breaker status is different from the desired circuit breaker status.

Claim 25

Dependent Claim 32 words

An electronic controller as recited in claim 21 further including inhibiting means for inhibiting said control means if said current circuit breaker status is the same as the desired circuit breaker status.

Claim 26

Dependent Claim 18 words

An electronic controller as recited in claim 21 wherein said control means is synchronized to a reference signal.

Claim 27

Dependent Claim 20 words

An electronic controller as recited in claim 23 wherein said reference signal is a source of alternating current electrical power.

Claim 28

Dependent Claim 23 words

An electronic controller as recited in claim 21 wherein said control means includes means for only actuating one circuit breaker at a time.

Claim 29

Dependent Claim 23 words

An electronic controller as recited in claim 24 wherein said control means includes means for actuating only one breaker during any half cycle.

Claim 30

Dependent Claim 27 words

An electronic controller as recited in claim 26 further including means for inhibiting aid control means during predetermined cycles of said source of alternating current electrical power.

Claim 31

Dependent Claim 103 words

An electronic controller for controlling solenoid operated circuit breakers having a status contact coupled to a source of alternating current electrical power comprising: means for determining the circuit breaker status by determining whether the status contact is open or closed; comparing means responsive to said determining means for comparing the current circuit breaker status with the desired circuit breaker status; control means responsive to said comparing means for changing said circuit breaker status when the current circuit breaker status is different from the desired circuit breaker status; and means for reducing the electromagnetic interference (EMI) caused by the switching of the circuit breakers.

Claim 32

Dependent Claim 103 words

An electronic controller for controlling solenoid operated circuit breakers having a status contact coupled to a source of alternating current electrical power comprising: means for determining the circuit breaker status by determining whether the status contact is open or closed; comparing means responsive to said determining means for comparing the current circuit breaker status with the desired circuit breaker status; control means responsive to said comparing means for changing said circuit breaker status when the current circuit breaker status is different from the desired circuit breaker status; and means for reducing the electromagnetic interference (EMI) caused by the switching of the circuit breakers.

Claim 33

Dependent Claim 34 words

An electronic controller as recited in claim 28 wherein said EMI reducing means includes means for inhibiting switching of a circuit breaker at or near a peak of said source alternating current electrical power.

Claim 34

Dependent Claim 52 words

An electronic controller as recited in claim 29 wherein said control means includes means for controlling switching of circuit breakers connected to a three-phase source of electrical power such that the switching occurs at or near 60° of any positive or negative half cycle of the source of alternating current electrical power.

Claim 35

Dependent Claim 40 words

An electronic controller as recited in claim 29 wherein said control means includes means for controlling switching of the circuit breakers connected to a single phase source of electrical power such that the switching occurs at or near zero crossings.

Claim 36

Dependent Claim 75 words

An electronic controller responsive to commands to controlling solenoid operated circuit breakers coupled to a source of alternating current electrical power comprising: first means responsive to said commands for actuating at least one of said circuit breakers as commanded; and second means for controlling the number of said circuit breakers actuated by said first means during a predetermined time period; and means for synchronizing said first means to said source of alternating current electrical power.

Claim 37

Dependent Claim 75 words

An electronic controller responsive to commands to controlling solenoid operated circuit breakers coupled to a source of alternating current electrical power comprising: first means responsive to said commands for actuating at least one of said circuit breakers as commanded; and second means for controlling the number of said circuit breakers actuated by said first means during a predetermined time period; and means for synchronizing said first means to said source of alternating current electrical power.

Claim 38

Dependent Claim 25 words

An electronic controller as recited in claim 32 wherein said predetermined time period is one half cycle of said source of alternating current electrical power.

Claim 39

Dependent Claim 34 words

An electronic controller as recited in claim 32 wherein said second means includes third means for allowing only two circuit breakers to be actuated per cycle of said source of alternating current electrical power.

Claim 40

Dependent Claim 31 words

An electronic controller as recited in claim 32 wherein said third means for actuating one circuit breaker on a positive half cycle and one circuit breaker on a negative half cycle.

Claim 41

Dependent Claim 30 words

An electronic controller as recited in claim 32 further including means for controlling the point along the positive and negative half cycles to reduce electromagnetic interference (EMI) caused by switching.

Claim 42

Dependent Claim 30 words

An electronic controller as recited in claim 36 further including inhibiting means for inhibiting actuation of circuit breakers at or near the peaks of the positive and negative half cycles.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1993-04-16	1993-10-16	1994-04-17	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1997-04-16	1997-10-16	1998-04-17	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	2001-04-16	2001-10-16	2002-04-17	$7700.00	Window Closed / Lapsed

Electronic control of solenoid operated circuit breakers

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