A snow and ice evaporating device that is an untethered device easily usable by an individual. The device has elements that resemble a traditional snow blower as well as a lawn mower, but that includes a salt hopper and a propane tank. The snow blower end operates much like a traditional snow blower with augers that break up snow and ice that are then expelled through a blower end. On the top of the device is a propane tank that provides flames to the bottom of the device, protected by a shroud that heat the surface being treated to melt both ice and snow. A salt hopper is situated on the back of the device which provides a means for applying salt to the treated surface to prevent refreezing. All portions of the device are easily controlled by and extended handle that the user uses to control these functions. The extended handle operates much like a lawn mower in that it allows the user to easily push the device which rolls on wheels and includes a kill switch to turn off the device in an emergency situation.

A cold weather surface maintenance vehicle can include a housing at least partially surrounding an engine and defining at least one vent oriented to emit air from within the housing toward a user positioned on the user support structure. A controller of a maintenance vehicle can restrict or reduce a speed of an engine in response to temperature, operation of a hydraulic attachment, or operator position. A controller of a maintenance vehicle can control operation of a dispensing mechanism of a flowable material distribution device with the controller based on a position of a traction control of the maintenance vehicle.

A snow blower implement for a power machine includes a power machine interface having a machine mount configured to engage the implement interface of the power machine. A tool of the implement is coupled to the power machine interface. The tool includes a frame forming an auger housing, and the auger housing includes apertures formed in the housing and arranged to proved an operator of the power machine with visibility, through the apertures, of an implement workspace within or in front of the auger housing while operating the power machine.

A system effective to communicate a message between two devices. A first device may include a plaintext to monoid element module effective to receive a plaintext message and apply a first function to the plaintext message to produce a first monoid element. A monoid element evaluator module may be effective to receive and insert submonoid generators into a monoid expression to produce a second monoid element in response. An encryption device module may be effective to apply a second function to the first monoid element, the second monoid element, the monoid expression, and a third monoid element to produce an encrypted plaintext message. Decryption may be performed on the encrypted plaintext message knowing the private key which includes the first function, the second function, the third monoid element and the submonoid generators list.

An impeller assembly for a snowthrower includes a flexible impeller configured to rotate about an axis, wherein the flexible impeller extends radially from the axis to an impeller radial distance, and a cutting implement extending radially from the axis to a cutting implement radial distance less than the impeller radial distance, wherein the cutting implement is spaced apart from and does not contact the flexible impeller.

A snowblower comprises an auger housing extending along a longitudinal axis and being configurable in a compacted configuration and in an extended configuration wherein a length of the auger housing considered along the longitudinal axis is greater in the at least one extended configuration than in the compacted configuration; and an auger assembly mounted to the auger housing and comprising: a telescopic drive shaft assembly including at least first and second shaft sections slidably mounted to each other to substantially conform to the length of the auger housing in each one of the compacted configuration and the at least one extended configuration; and snow-gathering devices mounted to the at least first and second shaft sections and rotatable therewith.

A device includes a housing configured with a working element and a motor configured for urging motion of the working element. The device further includes a power control module. The power control module is configurable for being in electrical connection with at least one of the motor, a first power source configuration and a second power source configuration. The first power source configuration is configurable for being electrically connected to a battery assembly having a DC power output. The second power source configuration is configurable for being electrically connected to a power inverter, the power inverter configured for receiving an AC power and further configured for outputting a DC power to the second power source configuration. The power control module includes an automatic power selection configuration for automatically selecting the second power source configuration when the second power source configuration receives DC power from the power inverter.

A drive assembly (140) for a walk-behind, powered device operably couples an engine (110) of the powered device to a mobility assembly (120) to provide mobility of the powered device responsive at least in part to operation of the engine (110). The drive assembly (140) includes a transmission shaft and a mechanical power reversing assembly (150). The transmission shaft selectively receives first drive power or second drive power coupled from the engine (110) to drive a first drivable component (122) and a second drivable component (124) of the mobility assembly (120). The first and second drivable components (122, 124) are disposed substantially at opposing sides of the powered device. The mechanical power reversing assembly (150) is selectively engagable to convert the first drive power generated for the first drivable component (122) into the second drive power provided to the second drivable component (124) and vice versa.

A skid shoe assembly for use on a snow thrower includes a bracket having a mounting portion configured to couple to the snow thrower and a support portion extending outwardly from the mounting portion. The skid shoe assembly also includes an insert including an annular body having a central aperture and a linear section configured to engage a ground surface. The central aperture receives the bracket so that the annular body is disposed around the mounting portion of the bracket. A portion of the annular body is configured to be captured between the support portion of the bracket and the snow thrower to secure the insert to the snow thrower.

A snowthrower includes an internal combustion engine and a starter battery pack that provides electrical power to operate an electric starter motor. The starter battery pack is received within a receptacle of the snowthrower and is selectively coupled to the starter motor to initiate operation of the internal combustion engine. The starter battery pack can further include a battery heating circuit that is operable to heat the starter battery pack above ambient temperatures to increase the current output of the starter battery pack. The battery heating circuit includes a controller that utilizes electrical power from the starter battery pack to heat the starter battery pack.