Abstract: A ground surface treatment vehicle and systems and methods using the same. In some embodiments, the vehicle may be adapted to autonomously or semi-autonomously identify and optionally treat target areas such as divots on turf surfaces. The vehicle may identify the target area via onboard or remote sensors and autonomously treat the target area by providing a treating material such as infill, seed, particulate matter, and liquids.

Abstract: In a reactor comprising a cylindrical combustion chamber, at least one burner and a circular array of catalyst-containing tubes, there is provided a ring baffle on the wall opposite the burner(s) extending into the combustion chamber which redirects combustion gas around the combustion chamber, thereby enabling more even heat distribution and an increase in overall heat transfer.

Abstract: A wet surface cleaner operable in an upright cleaning mode, an auxiliary cleaning mode, and a lift-off cleaning mode. The surface cleaner has a canister assembly that is coupled to a body in the upright cleaning mode and removed from the body in the auxiliary cleaning mode and the lift-off cleaning mode.

Abstract: A wet surface cleaner operable to draw liquid and debris from a surface to be cleaned into a recovery tank. The recovery tank includes a cover that is removable from the recovery tank. where the cover is capable of surrounding at least a portion of a tank outlet.

Abstract: A surface cleaner that includes an accessory body removably coupled to a base. A nozzle has a first nozzle portion having a first nozzle passageway attached to the base and a second nozzle portion having a second nozzle passageway attached to the accessory body and removable with the accessory body. The first nozzle portion and second nozzle portion are releasably coupled connecting the first and second nozzle passageways along an airpath in fluid communication with a collection container when the accessory body is coupled to the base. The first nozzle passageway forms a suction inlet when the accessory body is coupled to the base and the second nozzle passageway forms the suction inlet in communication with the collection container and the suction source when the accessory body is uncoupled from the base.

Abstract: A ground surface treatment vehicle and systems and methods using the same. In some embodiments, the vehicle may be adapted to autonomously or semi-autonomously identify and optionally treat target areas such as divots on turf surfaces. The vehicle may identify the target area via onboard or remote sensors and autonomously treat the target area by providing a treating material such as infill, seed, particulate matter, and liquids.

Abstract: Turf management systems and methods to manage turf in a work region divided into a plurality of zones. Multiple sets of zone sensor data are associated with a different zone and monitored. A set of zone sensor data is provided as an input to a predictive turf model for each zone and an estimated turf condition is determined for each zone based on an output of the predictive turf model. Further, a recommended action (or no action) is generated based on the estimated turf condition. The recommended action (or no action) may be generated by a suggestion model. Either of the predictive turf model or the suggestion model can be updated based on measured/observed turf condition compared to desired turf condition.

Abstract: An autonomous ground maintenance system comprising a vehicle comprising a chassis supported upon a ground surface by ground support members, a container supported by the chassis, the container defining a discharge outlet operable to disperse treating material held within the container to a target area of the ground surface, a gate adapted to selectively open and close the discharge outlet, a sensor adapted to identify the target area, and an electronic controller supported by the chassis, the controller being in communication with the sensor and the gate. The controller is adapted to position the chassis at a location proximate the target area such that the discharge outlet is capable of delivering the treating material to the target area and energize the gate to open the discharge outlet.

Abstract: A wet surface cleaner operable in an upright cleaning mode, an auxiliary cleaning mode, and a lift-off cleaning mode. The surface cleaner has a canister assembly that is coupled to a body in the upright cleaning mode and removed from the body in the auxiliary cleaning mode and the lift-off cleaning mode.

Abstract: An autonomous ground maintenance system comprising a vehicle comprising a chassis supported upon a ground surface by ground support members, a container supported by the chassis, the container defining a discharge outlet operable to disperse treating material held within the container to a target area of the ground surface, a gate adapted to selectively open and close the discharge outlet, a sensor adapted to identify the target area, and an electronic controller supported by the chassis, the controller being in communication with the sensor and the gate. The controller is adapted to position the chassis at a location proximate the target area such that the discharge outlet is capable of delivering the treating material to the target area and energize the gate to open the discharge outlet.

Abstract: Systems and methods disclosed herein may be useful for aircraft heat shield assemblies. In this regard, a heat shield assembly is provided comprising a heat shield having an aperture, the aperture comprising an end portion and an insertion portion, the insertion portion having a width larger than the end portion, a spacer comprising an upper portion, an undermount flange and a gap between the upper portion and the undermount flange, wherein a surface of the gap is engaged with the heat shield, and wherein the undermount flange has a width less than the insertion portion of the aperture and greater than the width of the end portion.

Abstract: Systems and methods disclosed herein may be useful for aircraft heat shield assemblies. In this regard, a heat shield assembly is provided comprising a heat shield having an aperture, the aperture comprising an end portion and an insertion portion, the insertion portion having a width larger than the end portion, a spacer comprising an upper portion, an undermount flange and a gap between the upper portion and the undermount flange, wherein a surface of the gap is engaged with the heat shield, and wherein the undermount flange has a width less than the insertion portion of the aperture and greater than the width of the end portion.

Abstract: Systems and methods disclosed herein may be useful for aircraft heat shield assemblies. In this regard, a heat shield assembly is provided comprising a heat shield having an aperture, the aperture comprising an end portion and an insertion portion, the insertion portion having a width larger than the end portion, a spacer comprising an upper portion, an undermount flange and a gap between the upper portion and the undermount flange, wherein a surface of the gap is engaged with the heat shield, and wherein the undermount flange has a width less than the insertion portion of the aperture and greater than the width of the end portion.

Abstract: A non-linear discussion network comprises methods and technologies that include storing, associating, accessing, and communicating actions; and further displaying discussion sets as well as other information to viewing users.

Abstract: Systems and methods disclosed herein may be useful for improved torque tubes. In this regard, an apparatus is provided comprising a torque tube having an axis, a proximal terminus and a distal back leg, a first spline circumferentially disposed on the torque tube, a second spline circumferentially disposed on the torque tube, the first spline extending from a first location proximal to the distal back leg to a first terminal point, and the second spline extending from a second location proximal to the distal hack leg to a second terminal point, the second terminal point being distal to the first terminal point.

Abstract: Systems and methods disclosed herein may be useful for aircraft heat shield assemblies. In this regard, a heat shield assembly is provided comprising a heat shield having an aperture, the aperture comprising an end portion and an insertion portion, the insertion portion having a width larger than the end portion, a spacer comprising an upper portion, an undermount flange and a gap between the upper portion and the undermount flange, wherein a surface of the gap is engaged with the heat shield, and wherein the undermount flange has a width less than the insertion portion of the aperture and greater than the width of the end portion.

Abstract: Systems and methods disclosed herein may be useful for improved torque tubes. In this regard, an apparatus is provided comprising a torque tube having an axis, a proximal terminus and a distal back leg, a first spline circumferentially disposed on the torque tube, a second spline circumferentially disposed on the torque tube, the first spline extending from a first location proximal to the distal back leg to a first terminal point, and the second spline extending from a second location proximal to the distal hack leg to a second terminal point, the second terminal point being distal to the first terminal point.

Abstract: A multi-track fastening system having multiple tracks and a central slider or interchange. The central slider has angled openings and paths through which the tracks travel when the central slider is propelled along the tracks. Sliding the central slider along the tracks causes the rows of the tracks to interchange so that a volume of material coupled to the tracks can alternate between two different configurations.

Abstract: Methods and systems for transforming a volume of material into sleeves by means of a transforming fastener. The transforming fastener has multiple tracks, each track having a pair of matable rows. A slider coupled to the rows transforms the volume of material into sleeves when the slider moves along the rows. The slider accomplishes this transformation by fastening one of the pair of rows while simultaneously unfastening another of the pair of rows.