Abstract: A valve for a well system including a valve housing including a first housing port, a second housing port, and a bore, a piston received in the bore and including a first end, a second end, and an annular flange including a first annular surface and a second annular surface both of which are in fluid communication with the second housing port, a piston seal disposed in the outer surface of the piston and in sealing engagement with an inner surface of the bore, and a cage assembly that includes a cage including a bore, a first cage port, a second cage port, and a third cage port, and a spool disposed in the cage and coupled to the piston, the spool including a throughbore.

Abstract: A rechargeable battery jump starting device and a rechargeable battery assembly for use in the portable rechargeable battery jump starting device. The portable rechargeable battery jump starting device maximizes the power conducted from the rechargeable battery assembly to a battery being jump started.

Abstract: Systems and methods are provided for a portable vacuum comprising a vacuum portion including a suction end and a fan. A removable battery pack is removably attached to the vacuum portion and is configured to provide power to the fan during operation. The fun generates a suction force at the suction end. The removable battery pack comprises a plurality of charging ports including one or more first charging ports and one or more second charging ports. The first charging ports are configured to receive electrical current that charges the removable battery pack. The second charging ports are configured to charge one or more external electronic devices with power from the removable battery pack.

Abstract: Disclosed herein are an exemplary apparatus, system, and methods (e.g., Tactical Passive RFID transponder gloves with Morphological Actuation) comprising a glove made predominately of a resistive fabric that varies resistance per degree of deformation; comprising near field communication RFID tag readers, and a controller coupled to the glove to evaluate the varied resistance. A method of classifying RFID tags is also disclosed.

Abstract: A jump starting apparatus configured for jump starting a vehicle battery includes a rechargeable battery, a first battery cable having a first battery terminal connector for connecting the jump starting apparatus to a first battery terminal of the vehicle battery, a second battery cable having a second battery terminal connector for connecting the jump starting apparatus to a second battery terminal of the vehicle battery, a first conductor bar or plate connecting a conductor of the first battery cable to a first tab or terminal of the rechargeable battery, and a safety control system or circuit configured for detecting when the jump starting apparatus is properly connected to the vehicle battery and then switching on power from the rechargeable battery to the vehicle battery only when the jump starting apparatus is properly connected to the vehicle battery.

Abstract: A rechargeable battery assembly includes a rechargeable battery having a positive terminal and a negative terminal, and a rigid electrically conductive frame electrically connected to at least one of the positive terminal or the negative terminal of the rechargeable battery. The rigid electrically conductive frame is bent along multiple axes and includes a plurality of conductive frame members that are mechanically coupled together. The rigid electrically conductive frame surrounds the rechargeable battery on at least five sides, thereby providing structural stability to the rechargeable battery assembly during storage and use.

Abstract: Examples described herein relate to transitioning a playback session between portable playback devices such as “smart” headphones, earbuds, and handheld speakers with playback devices of a zone-based media playback system. Exemplary techniques facilitate continuity of playback when transitioning between locations (e.g., from at home to on-the-go or vice versa) or between listening paradigms (e.g., personal or out-loud playback of audio content). An example implementation includes detecting a swap trigger, determining the source playback device(s) and target playback device(s), and performing a playback session swap between the source playback device(s) and target playback device(s).

Abstract: An apparatus for jump starting a vehicle includes a handheld booster device comprising a rechargeable battery pack, a control circuit, a power switch, and an output port, wherein the control circuit detects when it is safe to couple the handheld booster device to the vehicle's battery and connects the rechargeable battery pack to the output port thru the power switch; and a jumper cable device comprising a plug and a pair of cables integrated with the plug, the plug being configured to connect to the output port of the handheld booster device in a specific orientation.

Abstract: A hand held, portable jump starter device includes a housing having a multi-cell rechargeable battery, a USB input port for receiving a charging current to recharge the multi-cell rechargeable battery, and an output port for providing jump starting current to an external vehicle; a USB charge circuit including a DC-to-DC converter circuit for upconverting an input voltage on the USB input port to a higher charging voltage for recharging the multi-cell rechargeable battery; a pair of series connected transistor devices for controlling current flow into and out of the multi-cell rechargeable battery; a control circuit for detecting the voltage of the multi-cell rechargeable battery and configured to turn off the USB charge circuit to prevent over charging of the multi-cell rechargeable battery if the detected voltage exceeds a threshold value; and a battery charge controller configured to prevent over discharging of the multi-cell rechargeable battery.

Abstract: Aspects of the disclosure relate to phenylalanine ammonia lyase (PAL) enzymes, including engineered PAL enzymes, and their use in catalyzing chemical reactions.

Abstract: A rechargeable battery jump starting device and a rechargeable battery assembly for use in the portable rechargeable battery jump starting device. The portable rechargeable battery jump starting device maximizes the power conducted from the rechargeable battery assembly to a battery being jump started.