Locks – Hasp
Reexamination Certificate
1999-03-29
2001-02-27
Gall, Lloyd A. (Department: 3627)
Locks
Hasp
C070S003000, C070S006000, C070S278600, C070S440000, C070SDIG003
Reexamination Certificate
active
06192718
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to an apparatus, means, system and method for closing a circuit breaker assembly in a time period of on the order of about fifty (50) to one hundred (100) milliseconds either through manual operation or electrical motor operation, and further relates to a control module for such a motor driven circuit breaker operator.
This invention is believed to provide a relatively elegant, cost effective and reliable apparatus, system and method for engaging a charging device to charge or store energy in a stored energy operating mechanism for a circuit breaker system that does not interfere with manual operation of the charging device if electric a control power is lost, and for engaging an electrical charging device that does not interfere with manual operations of the electrical charging device. The charging device may be engaged only if the stored energy operating mechanism is not fully charged. Further, if the charging device is manually operated, it can be interrupted or overrun when the electrical charging device is engaged during manual operation of the manual charging device. The charging device automatically disengages when the stored energy operating mechanism is fully charged. It is also believed that this system may provide a useful control module for such a motor driven circuit breaker operator.
2. Description of the Art
In certain circuit breaker applications, it may be necessary to close a circuit breaker relatively quickly, such as on the order of about fifty (50) to one hundred (100) milliseconds. For example, when industrial backup AC generators are parallel switched, the associated circuit breakers may require that the circuit breaker assemblies switch to their closed or ON positions relatively rapidly so as to actuate the circuit breaker to its ON position in a relatively short time. While there are certain circuit breaker stored energy operator accessories that may provide this feature, it is believed that they may be more complicated, may also be more expensive and may not have the features discussed herein.
SUMMARY OF THE INVENTION
It is an object of the present invention to overcome any deficiencies, limitations or problems of the existing art.
It is another object of the present invention to provide an electrical control module for use with a stored energy circuit breaker assembly having a motor for use with a circuit breaker assembly, the circuit breaker assembly providing an electrical signal through electrical contacts for actuating the circuit breaker assembly, the electrical control module comprising: a rectifying circuit, which receives and rectifies said electrical signal so as to provide a rectified electrical signal; a motor switch circuit connected to the motor; and an electrical signal flow maintenance circuit, which is operatively connected to said rectifying circuit, said motor switch circuit and the motor, wherein said electrical signal flow circuit maintenance maintains at least a threshold rectified electrical when the electrical contacts are closed so that said motor switch circuit is on and the motor operates.
It is yet another object of the present invention to provide the electrical control module of above, wherein said electrical signal is an AC electrical signal.
It is still another object of the present invention to provide the electrical control module of above, wherein said electrical signal is a DC electrical signal.
It is yet another object of the present invention to provide the electrical control module of above, wherein said rectified electrical signal is a full wave rectified DC electrical signal.
It is still another object of the present invention to provide the electrical control module of above, wherein said rectifying circuit comprises a bridge circuit.
It is yet another object of the present invention to provide the electrical control module of above, wherein said bridge circuit comprises diodes.
It is still another object of the present invention to provide the electrical control module of above, wherein said motor switch circuit comprises a thyristor.
It is yet another object of the present invention to provide the electrical control module of above, wherein said thyristor is a silicon-controlled rectifier.
It is still another object of the present invention to provide the electrical control module of above, wherein said electrical signal maintenance circuit comprises a voltage storage element connected across said bridge circuit so as to maintain the on state of the silicon-controlled rectifier.
It is yet another object of the present invention to provide the electrical control module of above, wherein the voltage storage element comprises a capacitor.
It is still another object of the present invention to provide the electrical control module of above, wherein said motor switch circuit comprises a rectified electrical signal filter in parallel with a zener diode, which is used to control a gate of said silicon-controlled rectifier.
It is yet another object of the present invention to provide the electrical control module of above, wherein said signal filter comprises a resistive element in series with at least one other voltage storage structure.
It is still another object of the present invention to provide the electrical control module of above, wherein said silicon-controlled rectifier is connected to an electrical protective element.
It is yet another object of the present invention to provide the electrical control module of above, wherein said electrical protective element comprises a voltage storage element.
It is still another object of the present invention to provide the electrical control module of above, wherein said voltage storage element is a capacitor connected in parallel with respect to said silicon-controlled rectifier.
It is another object of the present invention to provide a stored energy circuit breaker operator assembly for use with a circuit breaker assembly having a light pipe indicator assembly for indicating a status of the stored energy assembly, stored energy assembly comprising: a housing assembly; a movable element having at least two positions so that each of said positions corresponds to a state of the motor operated stored energy assembly, wherein each of said positions has a corresponding shading indicator; at least one light pipe mounted with respect to said housing assembly so that a first end of the light pipe faces said shading indicator and a second end opposite to said first end faces outwardly with respect to said housing assembly so that the light pipe indicates the shading indicator corresponding to a position of said movable element.
It is yet another object of the present invention to provide the stored energy assembly of above, wherein said shading indicator comprises a light background for one position of said movable element and a darker background for another position of said movable element.
It is still another object of the present invention to provide the stored energy assembly of above, wherein said light pipe is generally cylinder shaped.
It is yet another object of the present invention to provide the stored energy assembly of above, wherein said light pipe is generally rectangular shaped.
It is still another object of the present invention to provide the stored energy assembly of above, wherein said light pipe comprises acrylic plastic.
It is yet another object of the present invention to provide the stored energy assembly of above, wherein said light pipe is optically clear so that the shading indicator is indicated at said second opposite end of said light pipe.
It is still another object of the present invention to provide the stored energy assembly of above, wherein said movable element is an operator gear.
It is yet another object of the present invention to provide the stored energy assembly of above, wherein said corresponding shading indicator has a lighter portion and a darker portion, said lighter portion facing said one end of said light pipe when said operator gear is in one pos
Bollinger, Jr. Parker A.
Reagan Paul D.
Gall Lloyd A.
Siemens Energy & Automation Inc.
LandOfFree
Key lock and locking hasp assembly for a stored energy... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Key lock and locking hasp assembly for a stored energy..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Key lock and locking hasp assembly for a stored energy... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2597176