Abstract: A waveguide connector assembly includes a waveguide connector having a first end, a second end opposite the first end, and a body having a length that extends axially between the first end and the second end. The body has an interior surface and an exterior surface, the waveguide connector being configured to receive a waveguide at the first end. The waveguide connector assembly further includes a movable sleeve having a first end, a second end opposite the first end, a body extending axially between the first end and the second end, and an actuating surface. The movable sleeve is configured to slide axially along the exterior surface of the waveguide connector, the actuating surface being configured to prevent axial movement of the waveguide when the movable sleeve is in an actuating position.

Abstract: An enclosure for an electronic device. The enclosure has a rear base defining a cavity for holding the electronic device and having one or more input/output connectors. The enclosure has a front cover coupled to the rear base. The enclosure has a backplane within the cavity of the rear base. The backplane has a printed circuit board. The enclosure has as interconnect that electrically connects the printed circuit board with the one or more input/output connectors. The interconnect has a cross-hatched ground (or power) plane.

Abstract: An enclosure for protecting electronic devices. The enclosure has a rear base defining a cavity for holding different interchangeable electronic devices. The enclosure has a front cover coupled to the rear base. The enclosure has a backplane within the cavity of the rear base and a drawer chest. The drawer chest has a drawer chest has multiple drawers. The backplane connects to any of the different interchangeable electronic devices when an electronic device of the different interchangeable electronic devices is inserted into any drawer of the plurality of drawers.

Abstract: A device for dissipating a surge includes at least three metal oxide varistors (MOVs). Each of the MOVs may be positioned adjacent to each other. Each of the MOVs may have two contact surfaces. Contact surfaces of adjacent MOVs are electrically connected together. The at least three MOVs include a first outer MOV, a second outer MOV, and at least one inner MOV positioned between the first outer MOV and the second outer MOV. The first outer MOV and the second outer MOV have a greater voltage at a given current than at least one of the at least one inner MOV. The device further includes a first connector electrically coupled to at least one of the at least three MOVs. The device further includes a second connector electrically coupled to at least another of the at least three MOVs.

Abstract: A filtering unit includes a housing having outer walls that define a volume and an inner wall that separates the volume into a first chamber and a second chamber. The filtering unit also includes a rigid/flexible circuit board. The circuit board includes a first rigid portion designed to be positioned in the first chamber. The circuit board further includes a second rigid portion designed to be positioned in the second chamber. The circuit board further includes a flexible portion connecting the first rigid portion to the second rigid portion and designed to extend around the inner wall from the first chamber to the second chamber. The filtering unit further includes a bumper designed to be positioned between one of the outer walls and the inner wall to provide waveguide functionality by reducing an amount of electric field that can pass from the first chamber to the second chamber.

Abstract: A surge protector includes a housing defining a cavity and having an axis. The surge protector also includes first and second center conductors positioned within the cavity at the axial ends of the housing. The surge protector also includes an inner coupler positioned within the cavity, having a center portion, and being coupled to the first center conductor. The surge protector also includes an outer coupler positioned within the cavity, having an inner surface that defines a volume for receiving a portion of the center portion of the inner coupler, and coupled to the second center conductor. The surge protector also includes a first dielectric material positioned between the center portion and the inner surface. The surge protector also includes a first spiral inductor positioned within the cavity, having an outer curve and an inner curve, and being coupled to the first center conductor or the second center conductor.

Abstract: A system and an enclosure for protecting one or more electronic devices and having a rear base defining a cavity for holding the electronic device. The enclosure has a front cover coupled to the rear base and moveable between an open position and a closed position and a removable tear-away plug that when removed allows water to drain out of the enclosure. The enclosure has a rear base external surface that has a vertical indented portion configured to receive a pole and a horizontal indented portion and a slot configured to receive a fastener for attachment to the pole.

Abstract: A surge protector includes a first and second contact connected via an energy absorbing element, such that electrical current travels from the first contact to the second contact via the energy absorbing element. The surge protector further includes a thermal spacing unit contacting the energy absorbing element and configured to be in a first physical state or a second physical state based on a temperature of the energy absorbing element. The surge protector further includes a connection unit connected to the second contact, the connection unit configured to be in a first position when the thermal spacing unit is in a first physical state and a second position when the thermal spacing unit is in a second physical state, such that the electrical current from the first contact to the second contact via the energy absorbing element is interrupted when the connection unit is in the second position.

Abstract: An enclosure having a rear base defining a cavity for holding one or more electronic devices. The enclosure includes a front cover coupled to the rear base and movable between an open position and a closed position. The enclosure includes a chassis mounted within the cavity of the rear base and a drawer chest having a multiple drawers within the cavity of the rear base. The drawer chest is connected to the chassis, and the multiple drawers are configured to receive the one or more electronic devices. The enclosure includes one or more connectors that are exposed outward and provide a connection to a host electronic device.

Abstract: An EMP/HEMP protection device for protecting equipment from electromagnetic pulses. The protection device includes a housing defining a cavity therein and separated into two chambers, a dirty chamber for propagation of signals before filtering of electromagnetic interference, and a clean chamber, isolated from the dirty chamber, for propagation of signals after filtering. A rigid-flex printed circuit board (PCB) is disposed in the cavity for facilitating electrical connections between the chambers. Surface mount electrical components for EMP/HEMP protection are coupled with the rigid-flex PCB. Power and/or data signals are transferred from the dirty chamber to the clean chamber though a wave guide below cutoff (WBC). The WBC is formed from opposing electrical ground planes within a center PCB of the rigid-flex PCB. An electrically conductive and weather sealing gasket is disposed in the cavity of the housing for further EMI isolation.

Abstract: A surge protector for use with a two line signal path or control circuit. The surge protector has two terminals for connecting to both line signals as well as provisions for earth grounding. The surge protector has a surge protection stage and a short detection stage for detecting imbalances in the signal. The surge protector also includes a trigger stage which activates an electromechanical device to disconnect the two terminals from the rest of the surge protector when the short detection stage detects a short. The surge protector further includes visual indicators for indicating an operating status and a short detection.

Abstract: A low let-through voltage surge suppression or protection circuit for protecting hardware or equipment from electrical surges. During operation when no surge condition is present, the circuit allows propagation of signals from a source to a load along a signal path. When a surge is present, the circuit senses and diverts the surge away from the signal path, utilizing common mode and/or differential mode surge protection. An electronic filter is connected in parallel with surge suppression circuit elements for reducing the let through voltage that would otherwise propagate and require a higher power surge suppression circuit element to mitigate. Cascading multiple electronic filters in parallel with surge suppression circuit elements further reduces voltage let through.

Abstract: A DC surge protection circuit for protecting hardware from surges. During operation when no surge condition is present, the circuit passes signals from an input to an output through an inductance. When a surge is present, the circuit conducts a portion of the surge through at least one diode and diverts the surge to a ground node. A gas tube begins to conduct a portion of the surge above a first voltage level after the at least one diode first begins to conduct. A first MOV begins to conduct a portion of the surge above a second voltage level after the gas tube begins to conduct. The circuit may include a status portion. The circuit may be within an enclosure for plug-in to a motherboard or within an enclosure of an in-line connector for connection with a cable. The circuit may be configured to attach directly to a frame.

Abstract: A DC block RF device includes a housing defining a cavity having a central axis, an input conductor disposed in the cavity of the housing and extending substantially along the central axis of the cavity and an output conductor disposed in the cavity of the housing and extending substantially along the central axis of the cavity. The DC block RF device further includes a first capacitor connected to the input conductor and a second capacitor connected to the output conductor and the first capacitor. In addition, the DC block RF device includes a coil for grounding surge signals, the coil having an inner edge connected to the center conductor and an outer edge connected to the housing of the device. During a surge, the first capacitor is configured to arc the surge across the capacitor without damaging the capacitor so the surge can dissipate through coil to ground.

Abstract: An earthquake triggered and electronically controlled shutoff valve for allowing or preventing a flow of a fluid. The shutoff valve incorporates a weight positioned on a pedestal and disengaged from a surrounding moveable tube. Upon sufficient vibrational force, the weight moves from its resting position on the pedestal and engages with the moveable tube to block the flow of the fluid through the shutoff valve. In addition to vibrational forces, the shutoff valve may be electronically triggered via a connector electrically connected to one or more solenoids positioned within the shutoff valve. The solenoids may engage with the weight upon electrical stimulation or may engage with a moveable member coupled to the moveable tube. An energy storage unit provides power for the solenoids such that the solenoids may function in the absence of external power to the shutoff valve.

Abstract: A surge protection apparatus or method for opening a surge path upon failure of a surge protection element as a short. The surge protection device may include a switch controlled by a solenoid or other switch controlling component that changes a position of the switch if the surge protection element fails as a conductive element. A first position of the switch is configured to allow transmittal of a signal from a signal connection, through the surge protection element, and to a ground connection. A second position of the switch is configured to prevent transmittal of a signal from the signal connection, through the surge protection element, and to the ground connection. A delay may be added between the changing of the switch position after the surge protection element fails as a conductor. Visual or other notifiers may indicate when the switch is in the second position.

Abstract: A surge suppressor device includes a first housing defining a first cavity, input and output conductors disposed in the first cavity of the first housing, a capacitor connected in series with the input conductor and the output conductor, a first spiral inductor having an inner edge connected to the input conductor and an outer edge and a second spiral inductor having an inner edge connected to the output conductor and an outer edge. The surge suppressor device further includes a second housing defining a second cavity and connected to the first housing, a feed-through connecting the first cavity to the second cavity, a non-linear protection device positioned in the second cavity of the second housing and a first electrical wire passing through the feed-through and connecting the outer edge of the first spiral inductor to the non-linear protection device.

Abstract: A surge protector for use with a two line signal path or control circuit. The surge protector has two terminals for connecting to both line signals as well as provisions for earth grounding. The surge protector has a surge protection stage and a short detection stage for detecting imbalances in the signal. The surge protector also includes a trigger stage which activates an electromechanical device to disconnect the two terminals from the rest of the surge protector when the short detection stage detects a short. The surge protector further includes visual indicators for indicating an operating status and a short detection.