Abstract: A sprayer includes a spray gun and a hopper. An air source provides compressed air to the sprayer to both eject fluid from the spray gun as a spray and to pressurize the hopper. The spray gun includes an airflow controller for controlling the flow of the compressed air to a nozzle of the spray gun, a pressure regulator for regulating a pressure of the compressed air flowing to the hopper, and a relief valve between the pressure regulator and the hopper. The hopper receives the compressed air through a port in the hopper, and the compressed air assists the flow of material out of the hopper and into the spray gun.

Abstract: A fluid dispensing system includes a motor housing and a piston pump assembly connected to the motor housing. A motor is mounted within the motor housing. The piston pump assembly includes a pump housing, a cartridge having a first end that extends into a second end of the pump housing, a piston that extends into a first end of the pump housing and the first end of the cartridge, and a packing stack within the cartridge and adjacent an inner surface of the cartridge and through which the piston extends. The cartridge is configured to be removed from the pump housing, and removal of the cartridge removes the packing stack from within the pump housing while leaving the pump housing connected to the motor housing.

Abstract: A material sprayer includes a hopper module and a power module. The power module is mountable and dismountable from the hopper module. The hopper module includes a hopper frame and a hopper supported by the hopper frame. The power module includes a drive and a pump connected to and configured to be powered by the drive. The pump interfaces with the hopper with the power module mounted on the hopper frame such that the pump can draw material from the hopper.

Abstract: A battery powered driver for propelling a wheeled ground surface modifying machine includes at least one wheel contacting a ground surface, a battery powered electric motor, control circuitry configured to manage delivery of electrical battery power to the electric motor to control a sped of the driver, at least one pedal attached to a pedal axle and tiltable in each of a forward and rearward direction with respect to the pedal axle, and at least one pedal tilt sensor configured to output one or more signals to the control circuitry indicating a degree of tilt of the at least one pedal.

Abstract: A motor assembly includes a shaft, an electric motor operatively connected to the shaft to drive the shaft in a first rotational direction, a clutch assembly connected to the shaft, and a fan connected to the clutch assembly and configured to supply the electric motor with cooling air. The clutch assembly drives the fan when the electric motor drives the shaft and allows the fan to freewheel in the first rotational direction when the electric motor is not driving the shaft. A method of operating a fan cooled electric motor includes energizing the electric motor to drive a shaft in a first rotational direction using the electric motor and de-energizing the electric motor so that it no longer drives the shaft, allowing the fan to freewheel in the first rotational direction.

Abstract: An example occlusive implant is disclosed. The example occlusive implant includes an expandable framework configured to shift between a first configuration and a second expanded configuration, an occlusive member disposed along at least a portion of an outer surface of the expandable framework and a resilient member coupled to the occlusive member. Further, the resilient member is configured to keep the occlusive member taut against an outer surface of the expandable member in both the first configuration and the second configuration.

Abstract: A method for tracking an event of an externally controlled interface (ECI) is described. The method includes generating the externally controlled interface independent of an outcome of a wager-based game regulated by a regulatory authority, and logging the event of the externally controlled interface.

Abstract: An example medical device for occluding the left atrial appendage is disclosed. The example medical device for occluding the left atrial appendage includes an expandable member having a first end region and a second end region. The expandable member comprises at least one inflation cavity and at least one valve member configured to selectively seal the inflation cavity. A first inflation media may be disposed within the at least one inflation cavity and a second inflation media may be disposed within the at least one inflation cavity. The second inflation media may be different from the first inflation media. The expandable member may be configured to expand and seal the opening of the left atrial appendage.

Abstract: A line striper includes a frame supported by a plurality of wheels, a spray gun supported by the frame and positioned for ground spraying, a pump for supplying line striping fluid to the spray gun, the pump supported by the frame, an electric motor for driving the pump, the motor supported by the frame, a motor control attached to the motor and electrically connected to the motor, an inverter electrically connected to the motor control, the inverter supported by the frame, a first battery electrically connected to the inverter, the first battery supported by the frame, and a power switch electrically connected to the inverter, the motor control, and the first battery, the power switch supported by the frame.

Abstract: A line striper for ground marking with a sprayable fluid includes a horizontal frame, a front wheel mounted to the horizontal frame, a left rear wheel and a right rear wheel mounted to the horizontal frame, a rear axle extending from one or both of the left rear wheel and the right rear wheel, a mounting arm assembly connected to the horizontal frame, a spray gun mounted on the mounting arm assembly and positioned for spraying the ground, a pump mounted on the horizontal frame, the pump configured to pump the sprayable fluid to the spray gun, and a fluid reservoir support stage removably positioned over the horizontal frame.

Abstract: A sprayer includes a spray gun and a hopper. An air source provides compressed air to the sprayer to both eject fluid from the spray gun as a spray and to pressurize the hopper. The spray gun includes an airflow controller for controlling the flow of the compressed air to a nozzle of the spray gun, a pressure regulator for regulating a pressure of the compressed air flowing to the hopper, and a relief valve between the pressure regulator and the hopper. The hopper receives the compressed air through a port in the hopper, and the compressed air assists the flow of material out of the hopper and into the spray gun.

Abstract: A sprayer includes a spray gun and a hopper. An air source provides compressed air to the sprayer to both eject fluid from the spray gun as a spray and to pressurize the hopper. The spray gun includes an airflow controller for controlling the flow of the compressed air to a nozzle of the spray gun, a pressure regulator for regulating a pressure of the compressed air flowing to the hopper, and a relief valve between the pressure regulator and the hopper. The hopper receives the compressed air through a port in the hopper, and the compressed air assists the flow of material out of the hopper and into the spray gun.

Abstract: An example medical device for occluding the left atrial appendage is disclosed. The example medical device for occluding the left atrial appendage includes an expandable member having a first end region, a second end region and an inflation cavity. The medical device also includes a plurality of spine members coupled to the expandable member, the plurality of spine members spaced circumferentially around an outer surface of the expandable member. Additionally, the medical device includes a valve member extending at least partially into the inflation cavity, wherein the plurality of spine members are configured to position the medical device within an opening of the left atrial appendage and wherein the expandable member is configured to expand and seal the opening of the left atrial appendage.

Abstract: A line striper includes a frame supported by a plurality of wheels, a spray gun supported by the frame and positioned for ground spraying, a pump for supplying line striping fluid to the spray gun, the pump supported by the frame, an electric motor for driving the pump, the motor supported by the frame, a motor control attached to the motor and electrically connected to the motor, an inverter electrically connected to the motor control, the inverter supported by the frame, a first battery electrically connected to the inverter, the first battery supported by the frame, and a power switch electrically connected to the inverter, the motor control, and the first battery, the power switch supported by the frame.

Abstract: A line striper for ground marking with a sprayable fluid includes a horizontal frame, a front wheel mounted to the horizontal frame, a left rear wheel and a right rear wheel mounted to the horizontal frame, a rear axle extending from one or both of the left rear wheel and the right rear wheel, a mounting arm assembly connected to the horizontal frame, a spray gun mounted on the mounting arm assembly and positioned for spraying the ground, a pump mounted on the horizontal frame, the pump configured to pump the sprayable fluid to the spray gun, and a fluid reservoir support stage removably positioned over the horizontal frame.

Abstract: A fluid dispensing system includes a motor housing and a piston pump assembly connected to the motor housing. A motor is mounted within the motor housing. The piston pump assembly includes a pump housing, a cartridge having a first end that extends into a second end of the pump housing, a piston that extends into a first end of the pump housing and the first end of the cartridge, and a packing stack within the cartridge and adjacent an inner surface of the cartridge and through which the piston extends. The cartridge is configured to be removed from the pump housing, and removal of the cartridge removes the packing stack from within the pump housing while leaving the pump housing connected to the motor housing.