A power tool includes a motor, a hammer mechanism, and a housing. The motor has a motor shaft that rotates around a motor axis. The hammer mechanism includes a cylinder and a hammer element adjacent to an air chamber defined within the cylinder and is configured to convert rotary motion of the motor shaft to linear motion of the hammer element along a prescribed hammer axis by utilizing action of an air spring of the air chamber. The housing houses the motor and the hammer mechanism. The motor axis is arranged to be parallel to the hammer axis and to pass through the inside of the cylinder.

A power tool includes a motor, a hammer mechanism, and a housing. The motor has a motor shaft that rotates around a motor axis. The hammer mechanism includes a cylinder and a hammer element adjacent to an air chamber defined within the cylinder and is configured to convert rotary motion of the motor shaft to linear motion of the hammer element along a prescribed hammer axis by utilizing action of an air spring of the air chamber. The housing houses the motor and the hammer mechanism. The motor axis is arranged to be parallel to the hammer axis and to pass through the inside of the cylinder.

A loader includes a support frame, having a handle disposed at a first end and a pair of wheels, connected by an axle, disposed at a second end, a ratchet column disposed between the pair of wheels along the axle, including a plurality of grooves, a bucket lift frame secured to the support frame at a first end of the bucket lift frame, a ratchet column pin, configured to releasably engage the plurality of grooves, secured to the bucket lift frame, a loading bucket pivotably secured to a second end of the bucket lift frame, a bucket dump lever pivotably secured to the bucket lift frame and a bucket control arm secured at a first end to the loading bucket and at a second end to the bucket dumper lever. The bucket dump lever is configured to move the loading bucket from a loading position to a dumping position.

A loader includes a support frame, having a handle disposed at a first end and a pair of wheels, connected by an axle, disposed at a second end, a ratchet column disposed between the pair of wheels along the axle, including a plurality of grooves, a bucket lift frame secured to the support frame at a first end of the bucket lift frame, a ratchet column pin, configured to releasably engage the plurality of grooves, secured to the bucket lift frame, a loading bucket pivotably secured to a second end of the bucket lift frame, a bucket dump lever pivotably secured to the bucket lift frame and a bucket control arm secured at a first end to the loading bucket and at a second end to the bucket dumper lever. The bucket dump lever is configured to move the loading bucket from a loading position to a dumping position.

Disclosed herein are walk behind grinding tools with horizontally aligned guides and grinding drum. One embodiment relates to a grinding tool with a pair of guides on opposing sides of a blade set of a grinding drum, where the pair of guides is configured to limit a grinding depth of the grinding drum. At least a portion of a guide curvature is generally concentric with a mill curvature, and a guide radius is less than a mill radius. Another embodiment relates to a grinding system including a grinding tool with a vacuum shroud hingedly attached to a front of a main body of a grinding housing, and a vacuum including a vacuum tube in fluid communication with the vacuum shroud. Another embodiment relates to a method of forming a grinding tool.

A debris handling shovel or shovel attaching with a trapping member and a triggering device. The triggering device actuates the trapping member to secure debris collected in the head or scoop of the shovel. The trigger device releases the debris when desired. The triggering device is positioned to be easily operatable by a person holding the shovel in a standard grip.

A panning tool is described and comprises a sifting scoop comprising an elongated half sphere of proportional dimensions. The left side wall, right side wall, and back wall of the sifting scoop define a reservoir for collecting sediment and holding precious metals and gems separated from the sediment during and after panning. The floor extends forwardly from the back side and can comprise riffles, furrows, or be flat. The panning tool comprises a connection body. The connection body is affixed to an interior face of the sifting scoop. Methods of using the panning tool and manufacturing the sifting scoop are also described.

Handheld trencher attachment assemblies are disclosed. In one embodiment, the assembly includes a base having digging bar and power cutter portions. The digging bar portion having opposed first and second sides and an opening that extends between the sides. The power cutter portion includes a plurality of spaced holes sized to receive bolts to attach the power cutter portion to a power cutter. The assembly additionally includes a drive axle rotatably received in the opening. The drive axle includes opposed first and second longitudinal ends. The assembly further includes a drive sprocket attached to the first longitudinal end. The drive sprocket includes teeth that meshes with a digging chain. The assembly additionally includes a drive pulley attached to the second longitudinal end. The drive pulley includes a groove around a circumference of the drive pulley. The groove is sized to receive a drive belt of the power cutter.

The present invention relates to a handheld excavator. The handheld excavator is used for excavating small areas and spaces that are unreachable with a standard excavator. The handheld excavator does not have an operator's seat and can have a four-legged stand, a wheeled stand, or a wall-mounted attachment. The excavator has a 180 degree rotational platform positioned on the stand, a boom extending from the platform, an arm attached to a first end of the boom, and a bucket. The linear and rotational movements of the excavator are controlled by a detachable control panel for remotely operating the handheld excavator. The handheld excavator is powered through built-in batteries and has a hydraulic mechanism for driving the movements.

A panning tool is described and comprises a sifting scoop comprising an elongated half sphere of proportional dimensions. The elongated half sphere can be a one-piece main body comprising a floor with a front edge, a left side wall curving upwardly along the floor's left side, a right side wall curving upwardly along the floor's right side, and a back wall curving upwardly from the floor's back side. The left side wall, right side wall, and back wall define a reservoir. The floor extends forwardly from the back side. The panning tool comprises a connection body. The connection body is affixed to an interior face of the sifting scoop. Methods of using the panning tool and manufacturing the sifting scoop are also described.