Abstract: A mobile microgrid charging system may comprise a first battery array that is configured to be transported from location to location and facilitate fast charging of electric aircrafts. The mobile microgrid charging system is mobile and configured to charge multiple electric aircraft prior to re-charging.

Abstract: A prosthetic device includes a footshell having a first portion and a second portion. The first portion has a first portion polymer lattice structure and the second portion has a second portion polymer lattice structure. The first portion polymer lattice structure has a first set of mechanical properties and the second portion polymer lattice structure has a second set of mechanical properties different from the first set of mechanical properties. The footshell also includes a sole attached to a bottom of the first portion and the second portion, wherein the sole is formed of a solid material.

Abstract: The present disclosure is directed to a compact vertical oven for reflow of solder bumps for backend processes in semiconductor wafer assembly and packaging. This disclosure describes a vertical oven which uses a plurality of wafers (e.g., an example value is 50-100 wafers) in a batch with controlled injection of the reducing agent (e.g. formic acid), resulting in a process largely free of contamination. This disclosure describes controlled formic acid flow through a vertical system using laminar flow technology in a sub-atmospheric pressure environment, which is not currently available in the industry. The efficacy of the process depends on effective formic acid vapor delivery, integrated temperature control during heating and cooling, and careful design of the vapor flow path with exhaust. Zone-dependent reaction dynamics managed by vapor delivery process, two-steps temperature ramp control, and controlled cooling process and formic acid content ensures the effective reaction without any flux.

Abstract: A solder reflow oven may include a reflow chamber and a plurality of vertically spaced apart wafer-support plates positioned in the reflow chamber. A plurality of semiconductor wafers each including a solder are configured to be disposed in the reflow chamber such that each semiconductor wafer is disposed proximate to, and vertically spaced apart from, a wafer-support plate. Each wafer-support plate may include at least one of liquid-flow channels or resistive heating elements. A control system control the flow of a hot liquid through the channels or activate the heating elements to heat a wafer to a temperature above the solder reflow temperature.

Abstract: A solder reflow oven may include a reflow chamber and a plurality of vertically spaced apart wafer-support plates positioned in the reflow chamber. A plurality of semiconductor wafers each including a solder are configured to be disposed in the reflow chamber such that each semiconductor wafer is disposed proximate to, and vertically spaced apart from, a wafer-support plate. Each wafer-support plate may include at least one of liquid-flow channels or resistive heating elements. A control system control the flow of a hot liquid through the channels or activate the heating elements to heat a wafer to a temperature above the solder reflow temperature.

Abstract: The present disclosure is directed to a compact vertical oven for reflow of solder bumps for backend processes in semiconductor wafer assembly and packaging. This disclosure describes a vertical oven which uses a plurality of wafers (e.g., an example value is 50-100 wafers) in a batch with controlled injection of the reducing agent (e.g. formic acid), resulting in a process largely free of contamination. This disclosure describes controlled formic acid flow through a vertical system using laminar flow technology in a sub-atmospheric pressure environment, which is not currently available in the industry. The efficacy of the process depends on effective formic acid vapor delivery, integrated temperature control during heating and cooling, and careful design of the vapor flow path with exhaust. Zone-dependent reaction dynamics managed by vapor delivery process, two-steps temperature ramp control, and controlled cooling process and formic acid content ensures the effective reaction without any flux.

Abstract: In one example, a therapy system includes a sleeve that defines an opening and has an outer surface and an inner surface. A therapeutic device is positioned so that the inner surface of the sleeve is disposed between the therapeutic device and an extremity of a user when the extremity is positioned in the opening defined by the sleeve. A manually operable tightening mechanism is provided that includes a lace connected to first and second portions of the outer surface of the sleeve and the lace is engaged with a mechanical lace tensioner that is operable to change, by either drawing the first and second portions toward each other or by allowing the first and second portions to move away from each other, a magnitude of a compressive force exerted by the sleeve on the extremity when the extremity is positioned within the opening defined by the sleeve.

Abstract: In one example, a therapy system is provided that includes an inner layer and an outer layer including first and second portions and disposed outside of the inner layer. A therapeutic device, such as a cold pack for example, is provided that is configured to be positioned inside the inner layer. The therapy system also includes an adjustable tightening mechanism connected to the first and second portions of the outer layer and operable to change a position of one of the first and second portions relative to the other of the first and second portions so as to adjust a magnitude of a compressive force exerted by the outer layer on an extremity of a user when the extremity is positioned within an opening defined by the inner layer.

Abstract: A prosthetic foot includes a base spring, a top spring assembly, a connector assembly, and a heel cushion. The top spring assembly includes first and second spring members, and first and second bond connections. The second spring member extends parallel with and spaced apart from the first spring member. The first bond connection is between distal ends of the first and second spring members, and the second bond connection is between a distal end of the second spring member and a top surface of the base spring. The top spring assembly has a first portion arranged horizontally, and a second portion arranged vertically. The connector is connected to a proximal end of the top spring assembly to connect the prosthetic foot to a lower limb prosthesis. The heel cushion is mounted to the base spring at a location spaced forward of a heel end of the base spring.

Abstract: In one example, a rehabilitation device includes a fixed length leg support having first and second spaced-apart, generally parallel elongate members having first and second ends, and a handle is rotatably coupled to the first ends of the elongate members. The rehabilitation device also includes an angularly-adjustable coupler by way of which the handle is rotatably coupled to the elongate members. The angularly-adjustable coupler is operable to implement variations to an angle cooperatively defined by the handle and the fixed length leg support, and the angularly-adjustable coupler includes a locking mechanism operable to releasably lock the handle at various different angular positions relative to the fixed length leg support.

Abstract: In one example, a rehabilitation device includes a fixed length leg support having first and second spaced-apart, generally parallel elongate members having first and second ends, and a handle is rotatably coupled to the first ends of the elongate members. The rehabilitation device also includes an angularly-adjustable coupler by way of which the handle is rotatably coupled to the elongate members. The angularly-adjustable coupler is operable to implement variations to an angle cooperatively defined by the handle and the fixed length leg support, and the angularly-adjustable coupler includes a locking mechanism operable to releasably lock the handle at various different angular positions relative to the fixed length leg support.

Abstract: A knee rehabilitation device is provided which can be used in various stages of knee rehabilitation to facilitate a full range of knee motion and promote joint flexibility following a knee impairment. The device, which can be used by a patient with or without the aid of medical personnel, is simple to use, compact, and is highly adjustable to accommodate different therapy regimens, and different leg sizes. To achieve maximum stretch of affected tissues of a pathologic joint, the device can be used without the need of lower extremity muscle involvement. A first embodiment device is machined or cast from a lightweight structural metal, such as titanium, aluminum or magnesium. The device includes a handle of adjustable length that is rotatably coupled to a parallel-beam leg support. The leg support provides attachment points for multiple adjustable bands that bridge the gap between the parallel beams.

Abstract: In one example, a rehabilitation device includes a first element having first and second spaced-apart, generally parallel elongate members having proximal and distal ends. A second element is rotatably coupled to the first element and includes first and second spaced-apart, generally parallel elongate members having proximal and distal ends. One of the first and second elements is angularly adjustable relative to the other. A measurement device includes a measurement element connected to one of the first and second elements and configured for rotation relative to one of the first and second elements, such that when the rehabilitation device is operably disposed with respect to a joint of a patient, the measurement element is arranged for contact with anatomy of the patient. Finally, a scale is disposed proximate the measurement element and indicates a position of the measurement element relative to another portion of the rehabilitation device.

Abstract: In one example, a heating system is provided that is suitable for use with materials for topical application and/or transdermal delivery to a subject. The heating system includes a heating element and a container. The container includes a container body configured to enclose a portion of the heating element when the heating element is engaged with the container body, and the container further includes a removable lid configured to be attached to the container body.

Abstract: In one example, a therapy system is provided that includes an inner layer and an outer layer including first and second portions and disposed outside of the inner layer. A therapeutic device, such as a cold pack for example, is provided that is configured to be positioned inside the inner layer. The therapy system also includes an adjustable tightening mechanism connected to the first and second portions of the outer layer and operable to change a position of one of the first and second portions relative to the other of the first and second portions so as to adjust a magnitude of a compressive force exerted by the outer layer on an extremity of a user when the extremity is positioned within an opening defined by the inner layer.

Abstract: In one example, a rehabilitation device includes a first element having first and second spaced-apart, generally parallel elongate members having proximal and distal ends. A second element is rotatably coupled to the first element and includes first and second spaced-apart, generally parallel elongate members having proximal and distal ends. One of the first and second elements is angularly adjustable relative to the other. A measurement device includes a measurement element connected to one of the first and second elements and configured for rotation relative to one of the first and second elements, such that when the rehabilitation device is operably disposed with respect to a joint of a patient, the measurement element is arranged for contact with anatomy of the patient. Finally, a scale is disposed proximate the measurement element and indicates a position of the measurement element relative to another portion of the rehabilitation device.

Abstract: A system and method is provided for optimizing a purchase of a desired product on a computer. The method includes receiving product information related to the desired product, a companion product, shelf prices, ring prices, a price threshold, and a rebate amount, and calculating a total shelf price based on shelf prices of the desired and companion products. The method further includes determining whether the total shelf price is greater than or equal to the price threshold, and if so, calculating a total ring price based on the ring prices of the desired and companion products. A result set is provided with the total shelf price and the total ring price. The result set may be ordered based on the total ring price. If a selection of a desired product is received, the result set may include the desired product.

Abstract: A scoop for measuring and dispensing powdered or granular material has at least one projection, such as a fin, multiple intersecting fins, or a spike, which enable the scoop to be “parked” in the surface of a powdered or granular food product without the handle of the scoop coming in contact with the product. The projection is preferably molded unitary with the scoop and handle. Unless the container is vigorously shaken, dropped, or subjected to extreme accelerative or decelerative forces, the scoop will remain in its parked position until the container is reopened for a further dispensing of the powdered or granular food product. The scoop may be packaged as an assembly in combination with a discardable floating scoop retainer disk, that is placed on the surface of the granular or powdered product, and prevents the scoop from sinking below the surface during shipping and handling.

Abstract: A knee rehabilitation device is provided which can be used in various stages of knee rehabilitation to facilitate a full range of knee motion and promote joint flexibility following a knee impairment. The device, which can be can be used by a patient with or without the aid of medical personnel, is simple to use, compact, and is highly adjustable to accommodate different therapy regimens, and different leg sizes. To achieve maximum stretch of affected tissues of a pathologic joint, the device can be used without the need of lower extremity muscle involvement. A first embodiment device is machined or cast from a lightweight structural metal, such as titanium, aluminum or magnesium. The device includes a handle of adjustable length that is rotatably coupled to a parallel-beam leg support. The leg support provides attachment points for multiple adjustable slings that bridge the gap between the parallel beams.

Abstract: A scoop for measuring and dispensing powdered or granular material has at least one projection, such as a fin, multiple intersecting fins, or a spike, which enable the scoop to be “parked” in the surface of a powdered or granular food product without the handle of the scoop coming in contact with the product. The projection is preferably molded unitary with the scoop and handle. Unless the container is vigorously shaken, dropped, or subjected to extreme accelerative or decelerative forces, the scoop will remain in its parked position until the container is reopened for a further dispensing of the powdered or granular food product. The scoop may be packaged as an assembly in combination with a discardable floating scoop retainer disk, that is placed on the surface of the granular or powdered product, and prevents the scoop from sinking below the surface during shipping and handling.