Abstract: A utility implement may include a frame, traction members supported by the frame, a propulsion unit supported by the frame and operably coupled to the traction members, a handle bar coupled to the frame, a control handle extending from the handlebar and located to be gripped by an operator while the operator is maneuvering the utility implement and as the utility implement is being driven by the traction members and a control transmission associating the control handle to the propulsion unit such that manipulation of the control handle adjusts operation of the propulsion unit to adjust propulsion of the utility implement by the traction members.

Abstract: A combined heat and power system includes a liquid-cooled internal combustion engine, an air-cooled alternator, an air-to-water heat exchanger, and a coolant-to water heat exchanger. The liquid-cooled internal combustion engine includes a liquid cooling system configured to cool the engine with coolant thereby heating the coolant. The air-cooled alternator is configured to be driven by the internal combustion engine to produce electricity. The alternator includes an air cooling system configured to cool the alternator thereby heating air. The air-to-water heat exchanger is configured to receive heated air and water in a heat exchange relationship to preheat the water and cool the air. The coolant-to-water heat exchanger is configured to place heated coolant and preheated water from the air-to-water heat exchanger in a heat exchange relationship to further heat the water and cool the coolant. The coolant-to-water heat exchanger provides heated water to the housing water outlet.

Abstract: A combined heat and power system includes a liquid-cooled internal combustion engine, an air-cooled alternator, an air-to-water heat exchanger, and a coolant-to water heat exchanger. The liquid-cooled internal combustion engine includes a liquid cooling system configured to cool the engine with coolant thereby heating the coolant. The air-cooled alternator is configured to be driven by the internal combustion engine to produce electricity. The alternator includes an air cooling system configured to cool the alternator thereby heating air. The air-to-water heat exchanger is configured to receive heated air and water in a heat exchange relationship to preheat the water and cool the air. The coolant-to-water heat exchanger is configured to place heated coolant and preheated water from the air-to-water heat exchanger in a heat exchange relationship to further heat the water and cool the coolant. The coolant-to-water heat exchanger provides heated water to the housing water outlet.

Abstract: A combined heat and power system includes a liquid-cooled internal combustion engine, an air-cooled alternator, an air-to-water heat exchanger, and a coolant-to water heat exchanger. The liquid-cooled internal combustion engine includes a liquid cooling system configured to cool the engine with coolant thereby heating the coolant. The air-cooled alternator is configured to be driven by the internal combustion engine to produce electricity. The alternator includes an air cooling system configured to cool the alternator thereby heating air. The air-to-water heat exchanger is configured to place heated air and water in a heat exchange relationship to preheat the water and cool the air. The coolant-to-water heat exchanger is configured to place heated coolant and preheated water from the air-to-water heat exchanger in a heat exchange relationship to further heat the water and cool the coolant. The coolant-to-water heat exchanger provides heated water to the housing water outlet.

Abstract: A snow thrower head comprises an impeller and an auger disposed within a housing. The impeller is to contact a surface to be cleared by the impeller. The impeller is rotatable within the housing about a first axis while the auger is rotatable within the housing about a second axis above and forward the first axis.

Abstract: A gasoline powered engine configured to operate in a substantially horizontal orientation and to be stored in a generally vertical orientation without leaking of fluid contained in the gasoline powered engine may include an oil sump and a first oil drain port extending in a first direction through a first wall of the sump. The first wall forms a bottom of the sump when the engine is in the vertical orientation.

Abstract: A utility implement may include a frame, traction members supported by the frame, a propulsion unit supported by the frame and operably coupled to the traction members, a handle bar coupled to the frame, a control handle extending from the handlebar and located to be gripped by an operator while the operator is maneuvering the utility implement and as the utility implement is being driven by the traction members and a control transmission associating the control handle to the propulsion unit such that manipulation of the control handle adjusts operation of the propulsion unit to adjust propulsion of the utility implement by the traction members.

Abstract: A walk behind mower is configured to be stored in a vertical position or orientation. In one implementation, the mower disables a brake release based upon positioning of a handle. In one implementation, the mower facilitates oil changes while the mower is in the vertical orientation.

Abstract: A combined heat and power system includes a liquid-cooled internal combustion engine, an air-cooled alternator, an air-to-water heat exchanger, and a coolant-to water heat exchanger. The liquid-cooled internal combustion engine includes a liquid cooling system configured to cool the engine with coolant thereby heating the coolant. The air-cooled alternator is configured to be driven by the internal combustion engine to produce electricity. The alternator includes an air cooling system configured to cool the alternator thereby heating air. The air-to-water heat exchanger is configured to place heated air and water in a heat exchange relationship to preheat the water and cool the air. The coolant-to-water heat exchanger is configured to place heated coolant and preheated water from the air-to-water heat exchanger in a heat exchange relationship to further heat the water and cool the coolant. The coolant-to-water heat exchanger provides heated water to the housing water outlet.

Abstract: A gas powered walk behind mower is configured to be stored in a vertical position or orientation without leaking contained engine fluids.

Abstract: A snow thrower head comprises an impeller and an auger disposed within a housing. The impeller is to contact a surface to be cleared by the impeller. The impeller is rotatable within the housing about a first axis while the auger is rotatable within the housing about a second axis above and forward the first axis.

Abstract: A gas powered walk behind mower is configured to be stored in a vertical position or orientation without leaking contained engine fluids.