Abstract: Devices, systems, and methods for metals production are disclosed. In a first embodiment, a first portion of an ore is reduced, producing metals. A portion of the metals are stripped, complexed, or a combination thereof, into a supercritical carbon dioxide stream.

Abstract: Devices, systems, and methods for a frame with a slidable segment are disclosed. The slidable segment is slidably mounted within the frame. A first motor is coupled to the slidable segment. A first pulley is affixed to and driven by the first motor. A first end of a first wire is affixed to a first vertical member of the frame. A second end of the first wire is affixed to a second vertical member of the frame. The first wire wraps around the first pulley at least once. Driving the first pulley in a first direction causes the first pulley to pull on the first vertical member such that the slidable segment slides towards the first vertical member. Driving the first pulley in a second direction causes the first pulley to pull on the second vertical member such that the slidable segment slides towards the second vertical member.

Abstract: Devices, systems, and methods for a frame with a slidable segment are disclosed. The slidable segment is slidably mounted within the frame. A first motor is coupled to the slidable segment. The first motor has a first gear affixed to and driven by the first motor. A first gear track may be mounted to a first horizontal member of the frame, wherein teeth of the first gear align with tooth spaces of the first gear track. Rotating the first gear in a first rotational direction causes the first gear to pull the slidable segment in a first linear direction as the first gear walks along the first gear track. Rotating the first gear in a second rotational direction causes the first gear to pull the slidable segment in a second linear direction as the first gear walks along the first gear track.

Abstract: Devices, systems, and methods for varying rotational speeds is disclosed. A battery pack has a plurality of batteries and a switch. The battery pack has an overall voltage. The switch varies the overall voltage in discrete steps by combining the plurality of batteries in series, in parallel, or in a combination thereof. A motor drives a shaft at a rotational speed. The motor is powered by the battery pack. The rotational speed varies proportionally with the overall voltage.

Abstract: Methods and systems for reducing an average particle size of blackwater solids is disclosed. A vessel is configured to receive a blackwater stream through a one-way inlet. The one-way inlet is configured to allow the blackwater stream into the vessel and prevent backflow. The blackwater stream contains blackwater solids and water. A device in a bottom portion of the vessel is configured to receive the blackwater and comminute the blackwater solids. A recirculating pump is configured to recirculate the blackwater stream under pressure through the device until the average particle size of the blackwater solids is reduced below a size threshold, resulting in a sized blackwater stream.

Abstract: A gear-shifting device includes a first motor having a first stator. The first stator turns clockwise and counter-clockwise, creating a wobbling action. The device further includes a compound planetary transmission, made up of a transmission ring attached to a ring gear. The compound planetary transmission receives power from the first stator. A second motor having a second stator, turns clockwise and counter-clockwise. The device further includes a shift assembly, made up of a drum, a cap, and a pinion gear. The pinion gear receives power from the second stator. The drum locks with the pinion gear such that the drum rotates with the pinion gear. The transmission ring is attached to the drum, such that the transmission ring moves laterally as the drum rotates. The ring gear locks and unlocks with the cap as the drum rotates. The wobbling action enables the locking.

Abstract: Devices, systems, and methods for a frame with a slidable segment are disclosed. The slidable segment is slidably mounted within the frame. A first motor is coupled to the slidable segment. The first motor has a first gear affixed to and driven by the first motor. A first gear track may be mounted to a first horizontal member of the frame, wherein teeth of the first gear align with tooth spaces of the first gear track. Rotating the first gear in a first rotational direction causes the first gear to pull the slidable segment in a first linear direction as the first gear walks along the first gear track. Rotating the first gear in a second rotational direction causes the first gear to pull the slidable segment in a second linear direction as the first gear walks along the first gear track.

Abstract: A motorized window with one or more motors and a frame with a slidable segment is disclosed. A drive system with pulleys engages with a belt or chain mounted to the frame or slidable segment. Rotating a first pulley in a first rotational direction causes the first pulley to pull the slidable segment in a first linear direction. Rotating the first pulley in a second rotational direction causes the first pulley to pull the slidable segment in a second linear direction. Preferably, a controller controls the operation of the motors. Sensors inform the controller, and user input via a mobile device enables both direct user control and programming of the controller.

Abstract: A device and method for retaining a line on a drum is disclosed. The drum has a slot which extends from a point along the periphery and into the drum in a first direction and at an acute angle relative to a tangent at the point. A clamp is provided with a slot portion and a line retaining portion. The slot portion is engaged with the slot such that relative movement between the clamp and the drum causes the slot portion to move in the first direction. As tension is applied to the line, a first force is created on the slot member in the first direction, resulting in a second force being applied by the line retaining portion in the first direction, clamping the portion of the line against the drum.

Abstract: A method for separating solids from liquids is disclosed. A double-roller system is provided. A process fluid is provided to the double-roller system. The process fluid comprises a suspended solid and a process liquid. The suspended solid comprises non-fibrous solid particles. A portion of the process fluid is compressed through the double-roller system to produce a compressed portion of the suspended solid. A product stream and a dilute fluid stream are separated. The product stream comprises a compressed portion of the suspended solid and a first portion of the process liquid. The dilute fluid stream comprises a second portion of the suspended solid and a second portion of the process liquid.

Abstract: A motorized window with one or more motors and a frame with a slidable segment is disclosed. A drive system with gears, transmission or worm drive engage with a gear track mounted to the frame or slidable segment. Rotating a first gear in a first rotational direction causes the first gear to pull the slidable segment in a first linear direction. Rotating the first gear in a second rotational direction causes the first gear to pull the slidable segment in a second linear direction. Preferably, a controller controls the operation of the motors. Sensors inform the controller, and user input via a mobile device enables both direct user control and programming of the controller.

Abstract: Methods and systems for modifying ambient sound waves passing through a wall are disclosed. The wall has a first side and a second side with a cavity therebetween. A sound producing device is situated between the first side and the second side and is configured to produce interfering sound waves in the cavity such that the sound waves passing through the wall are reduced, masked, or reduced and masked.

Abstract: A transmission apparatus is disclosed. The transmission apparatus includes at least a first gearset and a last gearset. Each gearset includes a sun gear, a set of planetary gears, and a ring gear. The ring gears have splined outer surfaces. Each gearset has a rotational speed and a torque. A drum encloses and mates with the gearsets. The drum has splined inner surfaces that mate with the splined outer surfaces. The last splined outer surface transfers the last torque of the last gearset directly to the drum. The drum transfers at least a portion of the last torque to the first splined outer surface of the first gearset. This reduces the first rotational speed of the first gearset and increases the first torque of the first gearset, thereby reducing the last rotational speed of the last gearset and increasing the last torque of the last gearset.

Abstract: Devices, methods, and systems for a fairlead changing direction of a line under tensions are disclosed. The fairlead may include an opening with a front lip. The line under tension may be roved through the opening. The front lip may have a variable radius round. The front lip guides a change in direction of the line.

Abstract: Methods and systems are provided for providing a secure connection to a medical device for remote servicing of the medical device. In one embodiment, a computing device is in communication with a medical device, the computing device comprising non-transitory memory including executable instructions for: communicating with the medical device via a first protocol; and communicating with a remote computing device via an encrypted, second protocol. The computing device also includes a processor for executing said executable instructions.

Abstract: A device and process for removing vapors from a gas is disclosed. A tower is provided. Sub-cooled pellets are distributed by the solids distributor across a horizontal cross-section of the tower. A process gas, comprising a product vapor, passes through the gas inlet. The product vapor and the sub-cooled pellets comprise the same material. The product vapor and the sub-cooled pellets agglomerate as the product vapor desublimates onto the sub-cooled pellets, forming product pellets and a vapor-depleted gas. A crushing device, a screening device, and a solids heat exchanger are provided. A portion of the product pellets are recycled as sub-cooled pellets to the solids distributor by crushing and screening the portion of the product pellets to the size distribution of the sub-cooled pellets and cooling the portion of the product pellets to produce the sub-cooled pellets.

Abstract: A method for cryogenic cooling without fouling is disclosed. The method comprises providing a first cryogenic liquid saturated with a dissolved gas; expanding the first cryogenic liquid into a separation vessel, separating into a vapor, a second cryogenic liquid, and a first solid; drawing the vapor into a heat exchanger and the second cryogenic liquid and the first solid out of the separation vessel; cooling the vapor against a coolant through the heat exchanger, causing the vapor to form a third cryogenic liquid and a second solid, the second solid dissolving in the third cryogenic liquid; and combining the second cryogenic liquid and the first solid with the third cryogenic liquid, producing a final cooled slurry. In this manner, the cryogenic cooling is accomplished without fouling.

Abstract: Devices, systems, and methods for separating a vapor from a gas are disclosed. A gas is passed through a direct-contact exchanger. The exchanger using a contact liquid to cool the gas. The gas comprises a vapor. A portion of the vapor is condensed as the gas passes through the direct-contact exchanger, producing a product liquid and a vapor-depleted gas. The product liquid is immiscible in the contact liquid. The product liquid is gravity settled from the contact liquid such that the contact liquid and the product liquid separate in the direct-contact exchanger.

Abstract: A process for forming a solid product or products is disclosed. The process is provided with n desublimating exchangers. An exchanger E1 being associated with a first exchanger and an exchanger En being associated with an nth exchanger, n representing the number of exchangers. The n exchangers comprise at least one direct-contact exchanger comprising a contact fluid. A process fluid is passed through the n exchangers in order from E1 through En. The process fluid comprises a product component or components. The solid product or products form from the product component or components in the plurality of exchangers by desublimation. The solid product or products are separated from the process fluid. In this manner, a solid product or products is formed.

Abstract: An apparatus comprising a heat exchanger and one or more induction heating elements is disclosed. The heat exchanger comprises a coolant side conduit and a process side conduit, the process side conduit being susceptible to fouling by at least partial desublimation, condensation, crystallization, deposition, or combinations thereof of a fouling component of a circulating process fluid. An electrically conductive first metal is disposed adjacent to the process side conduit. The one or more induction heating elements are disposed proximate to the heat exchanger. The one or more induction heating elements are connected to a source of electrical current. When the electrical current flows through the induction heating elements, eddy currents are induced in the first metal, heating the first metal such that the fouling component sublimates, melts, absorbs, or a combination thereof into the circulating process fluid.