Abstract: A radiography system having multiple digital radiographic detectors captures an image in each of the detectors when the x-ray source is fired. The detectors evaluate the captured images and a controller prioritizes the captured images according to the evaluations to determine which captured images are forwarded and in what order. At least one of the DR detectors captures a suitable diagnostic x-ray image.

Abstract: A CBCT imaging system comprises a digital radiation detector and radiation source. A detector transport moves the detector along at least a portion of a first curved path and a radiation source transport moves the radiation source along at least a portion of a second curved source path. The detector is configured to travel at least a portion of the first curved path, and the radiation source is configured to travel at least a portion of the second curved path. The detector is configured to obtain a plurality of 2D projection images over a range of scan angles for reconstructing a 3D volume image using the plurality 2D projection images.

Abstract: An imaging system comprises a digital radiation detector and radiation source. A detector transport moves the detector along at least a portion of a first curved path and a radiation moves the source along at least a portion of a second curved source path. The detector is configured to travel at least a portion of the first curved path, and the source is configured to travel at least a portion of the second curved path. The detector is configured to obtain a plurality of 2D projection images over a range of scan angles for reconstructing a 3D volume image using the plurality 2D projection images.

Abstract: A bi-directional fault circuit interrupter system having mis-wiring protection via numerous different poles. There are at least three different transformers wherein at least two of the transformers are differential transformers and at least one transformer is a neutral transformer. There is also at least one actuator which is used to switch the switches back and forth to selectively connect the electrical current to the fault circuit.

Abstract: An LCDI device comprising a first switching element coupled to a second switching element. A shield conductor coupled to the first switching element form a system that monitors output conductors of the device for faults. The second switching element is coupled to a relay that electrically connects input conductors of the device to output conductors of the device when the relay is energized by the second switching element. When a fault occurs, the first switching element generates a signal to the second switching element which de-energizes the relay causing said relay to electrically disconnect the input conductors from the output conductors.

Abstract: An overvoltage device that is formed from a MOV device that is coupled in parallel with a spark gap. This device is coupled upstream from electronic components to protect these components from damage. For example, in one embodiment, the overvoltage device is coupled to a fault circuit interrupter such as a GFCI, across the phase and neutral lines to protect components of the GFCI from an overvoltage condition. In one embodiment the overvoltage device is formed as an MOV physically coupled to a spark gap wherein the MOV and the spark gap are electrically coupled across the phase line and the neutral line in parallel.

Abstract: A bi-directional fault circuit interrupter system having mis-wiring protection via numerous different poles. There are at least three different transformers wherein at least two of the transformers are differential transformers and at least one transformer is a neutral transformer. There is also at least one actuator which is used to switch the switches back and forth to selectively connect the electrical current to the fault circuit.

Abstract: A circuit interrupting device such as a GFCI having a network of feed-through capacitors and other passive elements for providing enhanced Radio Frequency Interference (RFI) suppression where the feed-through capacitors and the other passive elements are integrated into a multilayer capacitor chip, also referred to as a Network Capacitor which is located between a differential transformer and at least one input terminal of an operational amplifier on an integrated circuit chip of the GFCI circuit.

Abstract: An overvoltage device that is formed from a MOV device that is coupled in parallel with a spark gap. This device is coupled upstream from electronic components to protect these components from damage. For example, in one embodiment, the overvoltage device is coupled to a fault circuit interrupter such as a GFCI, across the phase and neutral lines to protect components of the GFCI from an overvoltage condition. In one embodiment the overvoltage device is formed as an MOV physically coupled to a spark gap wherein the MOV and the spark gap are electrically coupled across the phase line and the neutral line in parallel.

Abstract: 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 circuit board having a system ground terminal and a detection terminal for receiving a fault detection signal. A chip is provided having a ground pin connected to the system ground terminal and an input pin for receiving the fault detection signal. The feedthrough capacitor has a through conductor connected between the input pin and the detection terminal and a capacitor coupled between the through conductor and the system ground terminal.

Abstract: A resettable circuit interrupting device such as a GFCI that, when reverse wired during installation, will trip and prevent power being applied to the load side of the GFCI when powered up. A current limiting circuit is connected between the phase and a ground terminal on the line side of the differential transformer of the GFCI. When the GFCI is connected correctly, the current through the current limiting circuit will have no significant effect on the GFCI, and it will operate normally. When, however, the line conductors are connected to the load terminals of the GFCI and the load conductors are connected to the line terminals of the GFCI, the current through the current limiting circuit will appear as a ground fault and cause the GFCI to trip.

Abstract: Resettable circuit interrupting devices, such as GFCI devices, that include a reset lockout mechanism, an independent trip mechanism and reverse wiring protection. A conical reset plunger is notched to force a successful test before reset.

Abstract: A suppression and protection circuit is used in conjunction with a circuit interrupter. In one configuration, a voltage clamping device such as a metal oxide varistor is utilized in a ground fault circuit interrupter product for handling transient surges and overvoltage conditions and is placed in series with a solenoid coil. The suppression and protection circuit includes a crowbar device across the line such as a header spark gap to prevent overvoltages, and a low pass filter such as an LC filter for suppressing transient surges.

Abstract: Resettable circuit interrupting devices, such as GFCI devices, that include neutral fault test simulation.

Abstract: An MOV element is physically and electrically connected to a heat sensitive material which changes from a low impedance path to a high impedance path, such as a spark gap, when the temperature of the MOV element rises to a temperature below that at which the MOV will enter into its thermal runaway state. More specifically, the heat sensitive material is located on a surface of the MOV and is electrically connected in series with the MOV. In operation, as the MOV gets hot, it heats the heat sensitive material. As the heat sensitive material gets hot, it starts to separate from the surface of the MOV to form a spark gap which is electrically connected in series with the MOV element to help dissipate excessive voltage.

Abstract: A method for creating a photomask which includes a layer of hard mask material the inclusion of which improves the uniformity of critical dimensions on the photomask by minimizing the affect of macro and micro loading. The method for producing the photomask of the instant invention includes two etching processes. The first etching process etches the layer of hard mask, and the second etching process etches the anti-reflective material and opaque material.

Abstract: A suppression and protection circuit is used in conjunction with a circuit interrupter. In one configuration, a voltage clamping device such as a metal oxide varistor is utilized in a ground fault circuit interrupter product for handling transient surges and overvoltage conditions and is placed in series with a solenoid coil. The suppression and protection circuit includes a crowbar device across the line such as a header spark gap to prevent overvoltages, and a low pass filter such as an LC filter for suppressing transient surges.

Abstract: A resettable circuit interrupting device such as a GFCI that, when reverse wired during installation, will trip and prevent power being applied to the load side of the GFCI when powered up. A current limiting circuit is connected between the phase and a ground terminal on the line side of the differential transformer of the GFCI. When the GFCI is connected correctly, the current through the current limiting circuit will have no significant effect on the GFCI, and it will operate normally. When, however, the line conductors are connected to the load terminals of the GFCI and the load conductors are connected to the line terminals of the GFCI, the current through the current limiting circuit will appear as a ground fault and cause the GFCI to trip.

Abstract: Resettable circuit interrupting devices, such as GFCI devices, that include a reset lockout mechanism, an independent trip mechanism and reverse wiring protection. A conical reset plunger is notched to force a successful test before reset.

Abstract: 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 circuit board having a system ground terminal and a detection terminal for receiving a fault detection signal. A chip is provided having a ground pin connected to the system ground terminal and an input pin for receiving the fault detection signal. The feedthrough capacitor has a through conductor connected between the input pin and the detection terminal and a capacitor coupled between the through conductor and the system ground terminal.