Bizarre Patents
Dining Table Having Integral Dishwasher
A space-saving dishwasher, which may be installed within a counter top or table, having a dish-carrying rack that is vertically shiftable through the open top of the dishwasher for facilitating loading and unloading of the dishes.
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| Number | Title | Issue Date |
| 8189306 | Dynamic grounding system and method Dynamic grounding including monitoring the floating DC outputs of a power amplifier, detecting an imbalance in the floating DC outputs, generating a compensation signal in response to a detected imbalance, and adjusting the power amplifier to re-balance the floating... | 05/29/2012 |
| 8189307 | Composite type electric circuit breaker and method thereof A composite electric circuit breaker, and method thereof, is configured to detect signals regarding arc faults, overcurrent, and earth leakage. Arcs and electric currents are detected by a current transformer and earth leakage is detected by a zero phase current tra... | 05/29/2012 |
| 8174804 | Circuit breakers with ground fault and overcurrent trip A circuit breaker apparatus may be used to interrupt overcurrent and ground fault in a circuit. The circuit breaker apparatus may include an overcurrent coil for tripping the circuit breaker apparatus, a voltage coil also for tripping the circuit breaker apparatus l... | 05/08/2012 |
| 8169757 | Circuit breaker with bistable display A circuit breaker is disclosed that has a bi-stable display that maintains an indication of a fault condition after power is interrupted to the circuit breaker. The circuit breaker has a microcontroller that receives power derived from a line current that passes thr... | 05/01/2012 |
| 8159793 | Arc detection using detailed and approximate coefficients from discrete wavelet transforms An apparatus for facilitating interruption of current in an electrical circuit is provided and includes a current sensing device in the electrical circuit to service an electrical load, the current sensing device being productive of an output signal representative o... | 04/17/2012 |
| 8159794 | Self testing ground fault circuit interrupter (GFCI) with end of life (EOL) detection that rejects false EOL information A self test (ST) ground fault circuit interrupter (GFCI) provides improved end of life (EOL) detection by rejecting false EOL information. A processing device receives fault detection signals indicating when faults are detected, and input signals indicating when con... | 04/17/2012 |
| 8154832 | Leak detection and leak protection circuit A leak detecting and leak protecting circuit comprises a rectification circuit comprising positive and negative power output ends, current limiting resistors, a diode, a silicon control comprising control poles, a switch capable of linking to a resetting button, and... | 04/10/2012 |
| 8154831 | Leakage current detection interrupter with fire protection means A leakage current detection interrupter with fire protection means comprising: (i) a movable assembly housing; (ii) two fixed contact holders each having a fixed contact point; (iii)) two movable contact holders each having a fixed end and a movable end with a movab... | 04/10/2012 |
| 8149552 | Downhole measurement tool circuit and method to balance fault current in a protective inductor A downhole measurement tool circuit and method to balance fault current in a protective inductor, which keeps an alternating current balanced in a protective choke during a phase-to-ground fault condition in a power cable or a downhole motor of an electrical submers... | 04/03/2012 |
| 8149551 | Systems and methods involving motor drive ground fault interrupts A method comprises determining whether a ground fault on a bus (110) operative to drive the system (100) exceeds a first threshold level, (502) receiving values of phase currents of a first motor, (504) calculating a sum of the values of ... | 04/03/2012 |
| 8144440 | Electric appliance and heating cooking device An appliance comprises: an appliance main body for employing an AC power supply, and a power supply unit, which outputs a DC voltage and an AC voltage to the appliance main body as power supply voltages. The power supply unit comprises: a power supply circuit for co... | 03/27/2012 |
| 8139328 | Fault circuit interrupting device with symmetrical inputs There is disclosed a circuit interrupting device with symmetrical inputs comprising a first input configured for connection to a power source or a load circuit and a second input configured for connection to a power source. There are a plurality of electrical conduc... | 03/20/2012 |
| 8134812 | Energy conversion system with fault detection and interruption Fault detection and interruption in connection with photovoltaic technologies are disclosed. An exemplary apparatus for interrupting a photovoltaic energy conversion system that employs a bipolar photovoltaic array includes a fault detector and interrupter configure... | 03/13/2012 |
| 8130480 | Circuit interrupting device with reset lockout Resettable circuit interrupting devices, such as GFCI devices, that include reverse wiring protection, and optionally an independent trip portions and/or a reset lockout portion are provided. The reverse wiring protection operates at both the line and load sides of ... | 03/06/2012 |
| 8130479 | Ground fault interrupts for solid state power controllers A solid state power control scheme is provided with a ground fault interrupt function. Essentially, if a neutral wire is associated with the power supply, the current is sensed in that neutral wire. The sensed neutral wire current is subtracted from a summed current... | 03/06/2012 |
| 8125748 | Ground fault circuit interrupter A ground fault circuit interrupter which comprises a main body structure, a low friction mechanical means, an electrical circuit, a low current utilizing solenoid, all of which are located in the main body structure for (1) interrupting the flow of electrical curren... | 02/28/2012 |
| 8120883 | Protective device with improved surge protection The present invention is directed to an electrical wiring protection device that includes a housing assembly having a plurality of line terminals and a plurality of load terminals. A fault detection circuit is coupled to at least one of the plurality of line termina... | 02/21/2012 |
| 8120882 | Protective electrical wiring device with light The present invention is directed to an electrical wiring device that includes an illumination assembly coupled to at least one detection circuit and disposed in the housing portion. The illumination assembly includes at least one light emitting element, an illumina... | 02/21/2012 |
| 8102629 | Leakage current compensation for high voltage transformers A method and system for measuring and compensating for a leakage current in a high voltage transformer. Such a method and/or system include the use of a primary winding and a secondary winding, which can be provided on a core of a soft-magnetic material. A current t... | 01/24/2012 |
| 8098465 | AFCI breaker providing protection for multiple branch circuits in an electrical panel An electrical panel has an Arc Fault Current Interrupter (AFCI) breaker connected to a power supply input, which is operative to interrupt current flow to multiple circuits when an arc fault is detected. The AFCI breaker, which may include Ground Fault Current Inter... | 01/17/2012 |
| 8089737 | Arc fault circuit interrupter and method providing improved nuisance trip rejection An arc fault circuit interrupter includes separable contacts, an operating mechanism and an arc fault detector structured to detect an arc fault condition operatively associated with the contacts. The arc fault detector includes a tuned current sensor structured to ... | 01/03/2012 |
| 8089738 | GFCI that cannot be reset until wired correctly on line side and power is applied An apparatus and method for preventing the miswiring of a protection device. The protection device includes line terminals and load terminals. The protection device further includes a latching mechanism, adapted to move between a closed state which establishes elect... | 01/03/2012 |
| 8085516 | Ground fault circuit interrupter with self test A ground fault circuit interrupter (GFCI) includes a GFCI controller configured to detect for ground faults and to periodically perform a self test. The self test may be performed during a positive half cycle of an AC line voltage coupled to a load by the GFCI. The ... | 12/27/2011 |
| 8085517 | Apparatus and method for ground fault detection and location in electrical systems The present invention is implemented by deploying an enhanced ground fault detection and location apparatus and by using the apparatus in conjunction with specific circuit analysis methods, using the information generated by the ground fault detection and location a... | 12/27/2011 |
| 8072718 | Protective device The present invention is directed to a protective device that includes a plurality of line terminals and a plurality of load terminals, the plurality of load terminals including a plurality of hot load terminals and a plurality of neutral load terminals. The device ... | 12/06/2011 |
| 8072717 | Protective device with separate end-of-life trip mechanism The present invention is directed to a protective wiring device for use in an electrical distribution system. The device includes a plurality of line terminals and a plurality of load terminals configured to be coupled to the plurality of line terminals in a reset s... | 12/06/2011 |
| 8072716 | AFCI device An arc fault circuit interrupter (AFCI) device prevents malfunction of an electric circuit and checks the state of the circuit and connection state of lines. One of a phase conductor line and a neutral conductor line is wound around a transformer which converts a cu... | 12/06/2011 |
| 8072715 | Method, apparatus and computer program product for fault protection An apparatus is provided for fault protection. The apparatus may include one or more electronic components configured to receive a single phase-to-ground fault signal and a double phase-to-ground fault signal subsequent to receiving the single phase-to-ground fault ... | 12/06/2011 |
| 8068318 | Apparatus for ground fault current interrupter with overall end-of-life indication and shutdown protection function An apparatus for ground fault current interrupter with overall end-of-life indication and shutdown protection function includes a first silicon-controlled rectifier, a reverse unit, a test switch unit and a ground fault current interrupter. The ground fault current ... | 11/29/2011 |
| 8064174 | Leakage current detection and interruption circuit with improved shield A circuit is disclosed for disconnecting a power source upon the detection of a leakage current comprising a power cable having an insulated first and a second wire. The power cable has a conductive shield surrounding the first and second wires with a drain wire ele... | 11/22/2011 |
| 8054595 | Circuit interrupting device with reset lockout Resettable circuit interrupting devices, such as GFCI devices, that include reverse wiring protection, and optionally an independent trip portions and/or a reset lockout portion are provided. The reverse wiring protection operates at both the line and load sides of ... | 11/08/2011 |
| 8054590 | Ground-fault circuit interrupter with circuit condition detection function A GFCI device with circuit condition detection function includes a leakage current detection circuit, a disconnect mechanism, a reset mechanism, a circuit condition detection and control circuit, and a selection switch. The disconnect mechanism includes a first SCR ... | 11/08/2011 |
| 8054593 | Apparatus and method for measuring load current using a ground fault sensing transformer A circuit that includes a single grounded fault sensing transformer coupled to a resonant circuit that produces an output signal used by a microcontroller to determine a load current flowing through at least two conductors passing through the center of the sensing t... | 11/08/2011 |
| 8054591 | Arc detection using discrete wavelet transforms An apparatus to perform series and parallel arc fault current interruption (AFCI). The apparatus includes a resistive element configured to sense a load from which a current signal is generated, a first detection unit configured to output a first signal based on the... | 11/08/2011 |
| 8054592 | Arc fault detection using fuzzy logic An arc fault detector which includes a filter which receives an input signal and filters the input signal, an amplifier which amplifies a signal output from the filter, an analog-to-digital converter disposed to receive the amplified signal from the amplifier and co... | 11/08/2011 |
| 8054594 | ARC flash detection system An apparatus to detect arc is presented. The apparatus includes a fiber sensor to detect characteristics of an arc flash and a processor to process at least two characteristics of the arc flash. The processor is further configured to generate an arc fault signal. A ... | 11/08/2011 |
| 8050002 | Housing arrangement for fault determination apparatus and method for installing the same A fault determination apparatus includes a housing. The housing includes a circuit board disposed there within. The housing is shaped and dimensioned for non-intrusive placement within an existing electrical system. The circuit board is configured to provide one of ... | 11/01/2011 |
| 8050001 | Timed electrical outlet and a method of operation thereof A timed electrical outlet (or pluggable apparatus) and a method of operation thereof. The electrical outlet (or pluggable apparatus) includes a current sensor, a counter, and an electrical switch. When an electrical load is plugged into the electrical outlet (or plu... | 11/01/2011 |
| 8045303 | Building service ground fault interrupter A ground fault interrupter to be used by utility company while effecting repairs to the electrical service for a building is positioned to interrupt the power supply to the building in case of a detected ground fault and utilizes a sensor for detecting the fault cur... | 10/25/2011 |
| RE42866 | Ground fault circuit interrupter with enhanced radio frequency interference suppression A ground fault circuit interrupter device having a feedthrough capacitor for substantially reducing interference from radio frequency signals such as those emitted from cell phones and 2-way radios. The ground fault circuit interrupter device includes a printed circ... | 10/25/2011 |
