Did You Know...
...that while attempting to develop a super strong glue, 3M employee Spencer Silver accidentally developed a glue that was so weak it would barely hold two pieces of paper together? However, his colleague Art Fry needed the glue. Fry sang with his church choir and marked the pages of his hymnal with small scraps of paper that often fell out. He used Silver's glue to hold the papers in place. Today we call this invention Post-it Notes.
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| Number | Title | Issue Date |
| 7959112 | Wheel detection and classification system for railroad data network A system for detecting and classifying a wheel of a rail vehicle traveling on a railway track includes a plurality of wheel detectors coupled to one rail of the railway track and configured to detect presence of the wheel and to generate signals representative there... | 06/14/2011 |
| 7359870 | System design, proposal and programming method and apparatus A technique is provided or integrating system design, sales, and manufacturing functions. Systems including networked and programmable electrical components, such as motor control centers, and other electrical power control arrangements are designed, and a database ... | 04/15/2008 |
| 7358700 | Induction motor controller An induction motor controller that may include three phase paths leading from a power input to a power output, a solid-state switching device interposed between the power input and the power output on each of the three phase paths, a voltage sensor coupled to two of... | 04/15/2008 |
| 7358620 | Methods and apparatus for ride-through operation of a complementary device to a transient power source In accordance with certain exemplary embodiments, the present technique provides methods and apparatus for providing operating power to a complementary device to an induction device based uninterruptible power source (UPS) via a direct current (dc) bus. In one embod... | 04/15/2008 |
| 7358442 | Bus structure for power switching circuits A bus system is disclosed for use with switching devices, such as power electronic devices. The system includes generally parallel bus elements that define electrical reference planes, such as for a dc bus. The bus elements are separated from one another by insulati... | 04/15/2008 |
| 7342194 | Dual function reset operator for an electrical device In certain embodiments, a system includes a mechanical actuator having a first member configured to engage a contact block to move a contact slide for a first distance between open and closed positions of an electrical contact pair. The mechanical actuator also has ... | 03/11/2008 |
| 7313648 | Corruption tolerant method and system for deploying and modifying data in flash memory In accordance with embodiments of the present techniques, a method and system are disclosed for storing write data in electronic memory. The system and method may comprise traversing a contiguous data chain beginning at a target position. The contiguous data chain m... | 12/25/2007 |
| 7237134 | Backup power module for industrial control and monitoring network A technique is provided for applying secondary or backup power to a networked device in the event of a loss or malfunction of network power. In a control and monitoring network. Various devices may receive both power and data signals from a network cable. In the eve... | 06/26/2007 |
| 7234864 | Measurement of multi-channel cold junction temperature The cold junction temperature of the channels on a multi-channel terminal block are accurately determined for each terminal pair without affixing a thermistor to each terminal. One embodiment provides accurate cold junction measurement of a six channel device (12 te... | 06/26/2007 |
| 7230344 | Apparatus and method for transient and uninterruptible power In accordance with certain exemplary embodiments, the present technique provides methods and apparatus for providing transient and uninterrupted power to protected loads. As one example, the present invention provides an induction device that operates as an inductio... | 06/12/2007 |
| 7212407 | Electrical power converter method and system employing multiple output converters A support may receive one or more power electronic circuits. The support may aid in removing heat from the circuits through fluid circulating through the support. The support, in conjunction with other packaging features may form a shield from both external EMI/RFI ... | 05/01/2007 |
| 7201345 | Reeled material splicing method and apparatus A system and method for splicing reeled media using operational feedback. According to certain embodiments, the method of operating a media production system involves sensing speed parameters of first and second reeled media, tracking an unwinding parameter of the f... | 04/10/2007 |
| 7200502 | Dual connection power line parameter analysis method and system A method and apparatus is disclosed for determining the power line parameters of a system. Specifically, there is provided a method comprising perturbing a voltage waveform through a first connection, measuring a characteristic of the perturbation through a second c... | 04/03/2007 |
| 7197811 | Method for separating stator windings of an electric motor during manufacture A technique for separating the stator leads of an electric motor during the manufacturing process. The technique comprises a system having a lead gathering assembly, a lead separator, and a drive mechanism. The lead gathering assembly is adapted to gather together a... | 04/03/2007 |
| 7191351 | Method and network for providing backup power to networked devices A network is configured to apply power and data signals to networked devices for operation of the devices. A backup power supply module is coupled to the source of network power and to a secondary power source. The secondary power source may have an adjustable volta... | 03/13/2007 |
| 7190382 | Real time system view method and apparatus A technique for generating a physical representation of networked components makes use of data stored within the individual components, which may be polled by a monitoring station. The data includes identification of the respective component, and data representative... | 03/13/2007 |
| 7187548 | Power converter having improved fluid cooling A thermal support may receive one or more power electronic circuits. The support may aid in removing heat from the circuits through fluid circulating through the support, which may be controlled in a closed-loop manner. Interfacing between circuits, circuit mounting... | 03/06/2007 |
| 7187568 | Power converter having improved terminal structure A terminal structure for power electronics circuits reduces the need for a DC bus and thereby the incidence of parasitic inductance. The structure is secured to a support that may receive one or more power electronic circuits. The support may aid in removing heat fr... | 03/06/2007 |
| 7184902 | Motor parameter estimation method and apparatus A system and method for establishing estimated values of electrical parameters of a motor. The electrical parameters may be established from motor databases, measured input electrical data, measured output data, and various estimations to account for unknown motor p... | 02/27/2007 |
| 7177132 | Method and apparatus for determining a switching signal state A technique for controlling a switching circuit includes one or more sensing circuits that generate signals based upon the presence of an actuating object and upon a randomly applied strobe signal. The generated signals are sampled and are used as a for determining ... | 02/13/2007 |
| 7177153 | Vehicle drive module having improved cooling configuration An electric vehicle drive includes a thermal support may receive one or more power electronic circuits. The support may aid in removing heat from the circuits through fluid circulating through the support. Power electronic circuits are thermally matched, such as bet... | 02/13/2007 |
| 7173345 | Multi-function integrated automation cable connector system and method The present technique relates to a power and data signal transfer assembly including a plurality of conductors. Through the transfer assembly, power and data signals may be distributed and transferred to a wide variety of devices and locations. Moreover, in one exam... | 02/06/2007 |
| 7164243 | System and method for establishing motor efficiency during balanced or unbalanced operating conditions A system and method for establishing a plurality of operating parameters of a multiphase motor. The plurality of electrical parameters may be established from stator resistance data and electrical input data. The system and method may be used to decompose the electr... | 01/16/2007 |
| 7164275 | AC power line impedance monitoring method and system A technique for determining inductive and resistive components of power line impedance. A measurement circuit switches a burden or drain resistor between power line conductors to cause a droop or sag in a voltage waveform. The voltage waveform is sampled prior to in... | 01/16/2007 |
| 7147926 | Corrosion-resistant and stain-resistant component and method for manufacturing same A multi-layer corrosion protection system and a method for applying the multi-layer corrosion protection system. The system comprises a corrosion-resistant layer plated onto a metallic substrate. The corrosion-resistant layer may be deposited using an autocatalytic ... | 12/12/2006 |
| 7140090 | Method of manufacturing an electric motor A technique for securing a conduit box to a housing of an electric motor is disclosed. The technique includes forming a hollow extension from a surface of the conduit box. The conduit box is placed on a motor frame so that the hollow extension is inserted into a hol... | 11/28/2006 |
| 7142434 | Vehicle drive module having improved EMI shielding EMI shielding in an electric vehicle drive is provided for power electronics circuits and the like via a direct-mount reference plane support and shielding structure. The thermal support may receive one or more power electronic circuits. The support may aid in remov... | 11/28/2006 |
| 7138892 | Method and apparatus for soft-fault tolerant circuit interruption In accordance with one embodiment, the present technique provides a circuit interrupter. The exemplary circuit interrupter includes conductive spanner that completes an electrical pathway between first and second electrical conductors. To facilitate a good electrica... | 11/21/2006 |
| 7135830 | System and method for identifying operational parameters of a motor A system and method for establishing estimated values of electrical parameters of a motor. The electrical parameters may be established from stator resistance data and motor data obtained at a single load on the motor. The electrical parameters also may be establish... | 11/14/2006 |
| 7135834 | Modified field oriented control In accordance with certain embodiments, the present technique provides a reduced current field-oriented-control scheme. For example, the present technique provides a method of controlling an induction device in which a predetermined reduction factor is employed to r... | 11/14/2006 |
| 7132766 | Method and apparatus for providing a switching signal in the presence of noise A technique for controlling a switching circuit, such as a relay, includes one or more sensing circuits that generate signals based upon the presence of an actuating object and upon a randomly applied strobe signal. The generated signals are sampled and are used as ... | 11/07/2006 |
| 7122932 | Rotor for an induction device According to one embodiment, the present invention provides a rotor assembly. The exemplary rotor assembly includes a plurality of rotor laminations, which cooperate to form a rotor core, capped at each end by end members. Extending through the rotor core and the en... | 10/17/2006 |
| 7113065 | Modular inductor for use in power electronic circuits A modular inductor arrangement is provided in which a footprint of an enclosure for single or multiple phase inductors provides enhanced thermal transfer. The inductor coil may be wound about an axis generally parallel to a mounting surface of the package, so as to ... | 09/26/2006 |
| 7111983 | Temperature detection method and apparatus for inverter-driven machines A resistance temperature detector device and system are provided for measuring the temperature adjacent to windings within a stator assembly. The resistance temperature detector comprises a resistive element enclosed within a plurality of insulative layers, includin... | 09/26/2006 |
| 7095612 | Cooled electrical terminal assembly and device incorporating same A terminal structure provides interfacing with power electronics circuitry and external circuitry. The thermal support may receive one or more power electronic circuits. The support may aid in removing heat from the terminal structure and the circuits through fluid ... | 08/22/2006 |
| 7092771 | Industrial control and monitoring method and system A technique is provided for integrating human machine interfaces with control and monitoring systems. Control and monitoring systems may be integrated into a human machine interface to enable access to various systems including networked and programmable electrical ... | 08/15/2006 |
| 7081735 | System and method for bypassing a motor drive A motor control system comprising a plurality of motor controllers and a power source adapted to drive an electric motor. The motor control system comprises a switch that is selectively operable between at least a first position and a second position. In the first p... | 07/25/2006 |
| 7063572 | Motor control center interconnection method and apparatus In one embodiment, the components within each respective unit of the MCC are connected powered by a connector assembly that is directly engaged to secondary power and network data conductors disposed of within the enclosure. The connector assembly, if so desired, wi... | 06/20/2006 |
| 7061775 | Power converter having improved EMI shielding EMI shielding is provided for power electronics circuits and the like via a direct-mount reference plane support and shielding structure. The thermal support may receive one or more power electronic circuits. The support may aid in removing heat from the circuits th... | 06/13/2006 |
| 7049514 | Rail system for distributing power and data signals Transmission of electrical signals can be conducted over a rail. The rail, which may be an at least partially open rail structure, may be disposed within an enclosure, and can be used to transmit data and power signals to an assembly of electrical components. A conn... | 05/23/2006 |
