A mobile apparatus with a fluid pressure-operated implement mounted at a distal end of a boom includes a connection apparatus for selectively rotating the implement about an actuator axis at the distal end of the boom. The connection apparatus includes a rotary actuator and a pressurized fluid circuit for delivery of pressurized fluid through the rotary actuator to the implement. The pressurized fluid circuit includes channels establishing a fluidic connection axially through the rotating shaft of the rotary actuator. The pressurized fluid circuit facilitates passage of pressurized fluid through an internal, protected environment to the implement.

A mobile apparatus with a fluid pressure-operated implement mounted at a distal end of a boom includes a connection apparatus for selectively rotating the implement about an actuator axis at the distal end of the boom. The connection apparatus includes a rotary actuator and a pressurized fluid circuit for delivery of pressurized fluid through the rotary actuator to the implement. The pressurized fluid circuit includes channels establishing a fluidic connection axially through the rotating shaft of the rotary actuator. The pressurized fluid circuit facilitates passage of pressurized fluid through an internal, protected environment to the implement.

An apparatus and method for removing the tops of trees, the apparatus including a rotatable first boom configured for coupling to and extending vertically downward from an aircraft and a cutting assembly hingedly coupled to a bottom end portion of the first boom. The cutting assembly includes a housing containing a motor, the housing having an upper portion coupled to the bottom end portion of the first boom. A second boom extends from a lower portion of the housing and supports thereon a singular circular saw which is operatively coupled to the motor. The second boom is arranged at an angle of about 30° to about 55° relative to the first boom. This accomplished by including bend within the housing.

Simulated bog-down system and method for power tools. One power tool according to an example embodiment includes a power source and a motor selectively coupled to the power source. The motor includes a rotor and stator windings. The power tool includes an actuator configured to generate a drive request signal and a power switching network configured to selectively couple the power source to the stator windings of the motor. The power tool includes an electronic processor coupled to the power source, the actuator, and the power switching network. The electronic processor is configured to detect a load on the power tool and compare the load to a threshold. The electronic processor is configured to determine that the load is greater than the threshold, and to control the power switching network to simulate bog-down in response to determining that the load is greater than the threshold.

Simulated bog-down system and method for power tools. One power tool according to an example embodiment includes a power source and a motor selectively coupled to the power source. The motor includes a rotor and stator windings. The power tool includes an actuator configured to generate a drive request signal and a power switching network configured to selectively couple the power source to the stator windings of the motor. The power tool includes an electronic processor coupled to the power source, the actuator, and the power switching network. The electronic processor is configured to detect a load on the power tool and compare the load to a threshold. The electronic processor is configured to determine that the load is greater than the threshold, and to control the power switching network to simulate bog-down in response to determining that the load is greater than the threshold.

A wheeled saw support apparatus for creating horizontal cuts in drywall and other vertical surfaces includes a base platform and a plurality of wheels is coupled to a base bottom side. A pair of side supports is coupled to a base top side adjacent a base front side. The pair of side supports comprises a left side support and a right side support coupled adjacent a base left side and a base right side, respectively. A pair of crossbars is coupled to the pair of side supports with each crossbar extending between a support inner side of each side support. A plurality of mounting clamps is coupled to the pair of crossbars. The plurality of mounting clamps secures a circular saw to the pair of crossbars.

A wheeled saw support apparatus for creating horizontal cuts in drywall and other vertical surfaces includes a base platform and a plurality of wheels is coupled to a base bottom side. A pair of side supports is coupled to a base top side adjacent a base front side. The pair of side supports comprises a left side support and a right side support coupled adjacent a base left side and a base right side, respectively. A pair of crossbars is coupled to the pair of side supports with each crossbar extending between a support inner side of each side support. A plurality of mounting clamps is coupled to the pair of crossbars. The plurality of mounting clamps secures a circular saw to the pair of crossbars.

A wheeled saw support apparatus for creating horizontal cuts in drywall and other vertical surfaces includes a base platform and a plurality of wheels is coupled to a base bottom side. A pair of side supports is coupled to a base top side adjacent a base front side. The pair of side supports comprises a left side support and a right side support coupled adjacent a base left side and a base right side, respectively. A pair of crossbars is coupled to the pair of side supports with each crossbar extending between a support inner side of each side support. A plurality of mounting clamps is coupled to the pair of crossbars. The plurality of mounting clamps secures a circular saw to the pair of crossbars.

A wheeled saw support apparatus for creating horizontal cuts in drywall and other vertical surfaces includes a base platform and a plurality of wheels is coupled to a base bottom side. A pair of side supports is coupled to a base top side adjacent a base front side. The pair of side supports comprises a left side support and a right side support coupled adjacent a base left side and a base right side, respectively. A pair of crossbars is coupled to the pair of side supports with each crossbar extending between a support inner side of each side support. A plurality of mounting clamps is coupled to the pair of crossbars. The plurality of mounting clamps secures a circular saw to the pair of crossbars.

The present invention relates to a system and method for cutting and manipulating the used wind turbine blades for disposal.