Abstract: An electric power lawn aerator is employed in use to care for lawns. The electric power lawn aerator is battery-powered, and includes a frame assembly, one or more non-driven wheels, a handle assembly, a powerhead assembly, a powertrain assembly, and a tine assembly, among other possible components. The powerhead assembly has one or more battery cavities and an electric motor. A battery, such as a lithium-ion battery, is received in the battery cavity(s) and powers the electric motor. The electric motor imparts rotational drive to the tine assembly by way of the powertrain assembly. The tine assembly punctures the lawn amid use of the electric power lawn aerator.

Abstract: An electric power hover lawn mower is employed in use to care for lawns. The electric power hover lawn mower is battery-powered and includes a deck housing, a handle, a main housing, an electric motor, an impeller, and a blade, among other possible components. The deck housing has an underside. The handle extends from the deck housing. The main housing is supported on the deck housing, and has one or more battery cavities. A battery, such as a lithium-ion battery, is received in the battery cavity(s) and powers the electric motor. The electric motor is housed by the main housing, and has a shaft that drives rotational motion of the impeller and of the blade. The impeller resides at the deck housing's underside, and the blade also resides at the deck housing's underside.

Abstract: An electric power rake is employed in use to care for lawns. The electric power rake includes a deck housing, multiple wheels, a handle, a battery housing, an electric motor, a pulley assembly, and a working shaft, among other possible components. The battery housing is supported on the deck housing. One or more battery cavities resides in the battery housing. A battery, such as a lithium-ion battery, is received in one of the battery cavities and powers the electric motor. The electric motor has a shaft that drives rotational motion in the pulley assembly. The working shaft is driven to rotate via the pulley assembly and has multiple blades that revolve thereabout when the working shaft rotates.

Abstract: A wedge mounting bracket for a log splitter includes a mounting plate and a female slot into which a corresponding male adapter of the wedge is received. In particular, a replaceable wedge includes a knife edge and a male adapter configured to be slideably received within the female slot of the mounting bracket. A through hole in the wedge is configured to align with a corresponding through hole in the mounting bracket to releasably secure the wedge within the mounting bracket using a nut and bolt assembly. In this way, the wedge may be conveniently removed from the log splitter for sharpening, while leaving the load bearing mounting hardware intact.

Abstract: Methods and systems for cooling a radial engine in a ground-based portable electric power generating system. The engine includes a plurality of cylinders extending radially from a central hub supporting a crankshaft. Each cylinder has a coolant inlet port and a coolant outlet port. The cooling system includes an inlet coolant manifold interconnecting at least two of the coolant inlet ports. The inlet coolant manifold is disposed external to the central hub.

Abstract: A manually operated stump grinder includes a turret system configured for substantially symmetric rotation by configuring the device such that the belt drive housing remains above and/or forward of the drive wheel during turret rotation.

Abstract: A wedge mounting bracket for a log splitter includes a mounting plate and a female slot into which a corresponding male adapter of the wedge is received. In particular, a replaceable wedge includes a knife edge and a male adapter configured to be slideably received within the female slot of the mounting bracket. A through hole in the wedge is configured to align with a corresponding through hole in the mounting bracket to releasably secure the wedge within the mounting bracket using a nut and bolt assembly. In this way, the wedge may be conveniently removed from the log splitter for sharpening, while leaving the load bearing mounting hardware intact.

Abstract: Methods and systems for cooling a radial engine in a ground-based portable electric power generating system. The engine includes a plurality of cylinders extending radially from a central hub supporting a crankshaft. Each cylinder has a coolant inlet port and a coolant outlet port. The cooling system includes an inlet coolant manifold interconnecting at least two of the coolant inlet ports. The inlet coolant manifold is disposed external to the central hub.