Abstract: Herein discussed is a method of producing hydrogen comprising: providing a tubular reactor having an open end and a closed end, wherein the reactor comprises an anode on the inside and a cathode on the outside separated by and in contact with a mixed conducting electrolyte, wherein the electrolyte comprises an electronically conducting phase and an ionically conducting phase, wherein the reactor comprises no current collector or interconnect; introducing a hydrocarbon and an oxidant into a feed tube, wherein the feed tube contains a catalyst that promotes catalytic partial oxidation (CPOX) reactions, wherein the feed tube extends into the open end of the reactor and toward the closed end of the reactor; introducing steam to the outside of the tubular reactor; and converting steam to hydrogen electrochemically without electricity input.

Abstract: A firearm with a slide and a frame. The slide has a slide rail. The frame has a frame rail. The frame rail interfaces with the slide rail. The frame rail has a lubrication groove and a debris removal port. The lubrication groove extends along a surface of the frame rail that bears against the slide rail during operation of the firearm. The debris removal port has gap within the frame rail proximate to an end of the lubrication groove.

Abstract: An electronic gaming machine may include an illuminable notification mechanism, which may be disposed on a rear surface of the electronic gaming machine in a position or location that makes the notification mechanism visible to a casino operator. The notification mechanism may include a display, such as, for example, a display that includes at least one tri-color light emitting diode (LED). The display of the notification mechanism may be selectively illuminated in a variety of lighting configurations based, for example, upon gameplay activity of a player of the gaming machine. For instance, in some embodiments, the notification mechanism may be selectively illuminated in any of an inactive lighting configuration, an active lighting configuration, or a privileged lighting configuration. In the privileged lighting configuration, the notification mechanism may indicate that a player of the gaming machine is entitled to a complimentary item (e.g., a free or reduced-price item or service).

Abstract: Synchronization of precision timing signals maintained by multiple communication networks is described. A precision timing signal may be generated based on the change in state of a plurality of processors. Synchronization of the precision timing signals may be facilitated by a computing device monitoring at least two communication networks. The computing device may generate time offsets that are derived from the precision timing signals associated with each communication network. The time offsets may be communicated by the computing devices to remote devices communicatively coupled to the computing device via a first communication network.

Abstract: A floor cleaner including a vacuum source recovery tank or collection bin and a body pivotally coupled to a base. The body is pivotable between an upright storage position and an inclined operating position and the body includes a recovery tank recess. The floor cleaner further includes a recovery tank removably coupled to the body in the recovery tank recess, the recovery tank in fluid communication with a vacuum source and a suction inlet, the recovery tank configured to store the cleaning fluid and/or debris drawn through the suction inlet from a surface by the vacuum source. The floor cleaner further includes a projection and a recess that receives the projection when the recovery tank is coupled to the body to limit movement of the body relative to the recovery tank.

Abstract: Synchronization of precision timing signals maintained by multiple communication networks is described. A precision timing signal may be generated based on the change in state of a plurality of processors. Synchronization of the precision timing signals may be facilitated by a computing device monitoring at least two communication networks. The computing device may generate time offsets that are derived from the precision timing signals associated with each communication network. The time offsets may be communicated by the computing devices to remote devices communicatively coupled to the computing device via a first communication network. The remote devices may adjust locally maintained application clocks based on the time offset. The adjustment may synchronize the local application clock with the precision timing signal of a second communication network. In response, a remote device may communicatively couple with the second communication network.

Abstract: A floor cleaner including a vacuum source recovery tank or collection bin and a body pivotally coupled to a base. The body is pivotable between an upright storage position and an inclined operating position and the body includes a recovery tank recess. The floor cleaner further includes a recovery tank removably coupled to the body in the recovery tank recess, the recovery tank in fluid communication with a vacuum source and a suction inlet, the recovery tank configured to store the cleaning fluid and/or debris drawn through the suction inlet from a surface by the vacuum source. The floor cleaner further includes a projection and a recess that receives the projection when the recovery tank is coupled to the body to limit movement of the body relative to the recovery tank.

Abstract: A floor cleaner including a recovery tank. The recovery tank includes a tank body having a lower end wall, an open upper end, and a sidewall that extend upwardly from the lower end wall. A cover that includes a suction air outlet in fluid communication with a vacuum source. An inlet duct extends upwardly from the lower end wall. The recover tank includes a shutoff float including a float body and a closure. The float body is configured to float on a surface of cleaning fluid and the closure is received in the suction air outlet to close the suction air outlet. The float body moves along the inlet duct as the float body floats on the surface of the cleaning fluid. The float body includes an aperture extending through the float body and the inlet duct extends through the aperture of the float body.

Abstract: Precision digital chronography based on detected changes in state of a processor is described. The changes in state may be detected by another processor and an averaged time interval generated. A signal corresponding to the averaged time interval may be communicated to a distributed database and propagated to remote systems. Devices associated with the remote systems may adjust or set a device clock in accordance with the averaged time interval.

Abstract: A floor cleaner including a vacuum source, a handle, and a base. The handle is pivotally coupled to the base, the handle pivotable between an upright storage position and an inclined operating position, the base movable over a surface to be cleaned. The base includes a suction inlet in fluid communication with the vacuum source, a brushroll chamber including a rear wall, a brushroll in the brushroll chamber, the brushroll rotatable about a brushroll axis, and a brushroll cover releaseably attached to the base, the brushroll cover removable to access the brushroll chamber and the brushroll, and the brushroll chamber rear wall is attached to and removable with the brushroll cover.

Abstract: Precision digital chronography based on detected changes in state of a processor is described. The changes in state may be detected by another processor and an averaged time interval generated. A signal corresponding to the averaged time interval may be communicated to a distributed database and propagated to remote systems. Devices associated with the remote systems may adjust or set a device clock in accordance with the averaged time interval.

Abstract: A floor cleaner including a recovery. The recovery tank is configured to contain a fluid drawn through a suction inlet from a surface to be cleaned by a vacuum source. The recovery tank includes a shutoff float. The shutoff float is movable between a first position and a second position. The shutoff float includes a float body, a float closure, and a first interconnecting member. The first interconnecting member engages a second interconnecting member to retain the float in the first position. In the first position, the shutoff float is spaced a distance from the suction air outlet, allowing air flow through the suction air outlet. The first interconnecting member engages the second interconnecting member to retain the shutoff float in the first position. In the second position, the shutoff float is adjacent the suction air outlet, inhibiting air flow through the suction air outlet.

Abstract: Precision digital chronography based on detected changes in state of a processor is described. The changes in state may be detected by another processor and an averaged time interval generated. A signal corresponding to the averaged time interval may be communicated to a distributed database and propagated to remote systems. Devices associated with the remote systems may adjust or set a device clock in accordance with the averaged time interval.

Abstract: A floor cleaner including a base movable over a surface to be cleaned, the base including a front side, a back side opposite the front side, and a brushroll chamber. A supply tank is configured to store a cleaning fluid and a distribution nozzle is in fluid communication with the supply tank, the distribution nozzle operable to dispense the cleaning fluid onto the surface to be cleaned. A brushroll cover is removable from the base to access the brushroll chamber. A brushroll is within the brushroll chamber. The distribution nozzle is disposed adjacent the front side of the base and carried on an upper exterior portion of the base and configured to spray forwardly of the base in a direction from the back side toward the front side.

Abstract: A floor cleaner including a recovery tank. The recovery tank includes a tank body having a lower end wall, an open upper end, and a sidewall that extend upwardly from the lower end wall. A cover that includes a suction air outlet in fluid communication with a vacuum source. An inlet duct extends upwardly from the lower end wall. The recover tank includes a shutoff float including a float body and a closure. The float body is configured to float on a surface of cleaning fluid and the closure is received in the suction air outlet to close the suction air outlet. The float body moves along the inlet duct as the float body floats on the surface of the cleaning fluid. The float body includes an aperture extending through the float body and the inlet duct extends through the aperture of the float body.

Abstract: A floor cleaner including a vacuum source and a base movable over a surface to be cleaned. The base includes a suction inlet in fluid communication with the vacuum source, a brushroll chamber, a brushroll in the brushroll chamber, the brushroll rotatable about a brushroll axis, a brushroll cover releaseably attached to the base, the brushroll cover removable to access the brushroll chamber and the brushroll. The base further includes a first actuator movable in a first direction from a latched position and to an unlatched position and a second actuator movable in a second direction, opposite the first direction, from a latched position and an unlatched position. The brushroll cover is secured to the base when the first and second actuators are in the latched positions and the brushroll cover is removable from the base when the first and second actuators are in the unlatched positions.

Abstract: A cleaning head for a floor cleaner including a housing, a brushroll, a suction inlet, and a mounting plate. The mounting plate includes an edge brush adjacent the suction inlet and extending to a lateral side of the housing. The edge brush is configured to direct dirt and debris from the lateral side of the floor cleaner to the suction inlet.

Abstract: A floor cleaner including a vacuum source, a supply tank configured to store a cleaning fluid, and a distribution nozzle in fluid communication with the supply tank. The distribution nozzle is configured to dispense the cleaning fluid onto a surface to be cleaned. The floor cleaner further includes a base movable over a surface to be cleaned, the base includes a suction inlet in fluid communication with the vacuum source, a brushroll chamber, a brushroll in the brushroll chamber, the brushroll rotatable about a brushroll axis. The base further includes a brushroll cover releasably attached to the base, the brushroll cover removable to access the brushroll chamber and the brushroll, the brushroll cover having a squeegee that contacts the brushroll. The brushroll axis is between a lower end of the base and the squeegee.

Abstract: A floor cleaner including a vacuum source, a supply tank configured to store a cleaning fluid, and a distribution nozzle in fluid communication with the supply tank. The distribution nozzle is configured to dispense the cleaning fluid onto a surface to be cleaned. The floor cleaner further includes a base movable over a surface to be cleaned, the base includes a suction inlet in fluid communication with the vacuum source, a brushroll chamber, a brushroll in the brushroll chamber, the brushroll rotatable about a brushroll axis. The base further includes a brushroll cover releasably attached to the base, the brushroll cover removable to access the brushroll chamber and the brushroll, the brushroll cover having a squeegee that contacts the brushroll. The brushroll axis is between a lower end of the base and the squeegee.

Abstract: A floor cleaner including a recovery tank. The recovery tank includes a tank body having a lower end wall, an open upper end, and a sidewall that extend upwardly from the lower end wall. A cover that includes a suction air outlet in fluid communication with a vacuum source. An inlet duct extends upwardly from the lower end wall. The recover tank includes a shutoff float including a float body and a closure. The float body is configured to float on a surface of cleaning fluid and the closure is received in the suction air outlet to close the suction air outlet. The float body moves along the inlet duct as the float body floats on the surface of the cleaning fluid. The float body includes an aperture extending through the float body and the inlet duct extends through the aperture of the float body.