Abstract: A low emission submersible engine is part of a multipurpose aquatic device, such as an aquatic craft or an electrical generator. A propulsion system having a propeller is coupled to the submersible engine to produce a swimmer propulsion machine and a generator is attached to the engine to produce an electrical generator. The submersible engine receives air from a snorkel that extends up above a water line. The aquatic device has a fuel reservoir which may receive liquid fuel or may receive a fuel cylinder. Floatation chambers keep the aquatic device afloat with the engine submerged. The exhaust assembly and exhaust ports from the engine may also be submerged and the exhaust ports may provide additional thrust. A propulsion system housing integrates the drive shaft and propeller, clutch coupler, exhaust conduits and water flow conduits and is detachably attachable to the engine.

Abstract: A low emission submersible engine is part of a multipurpose aquatic device, such as an aquatic craft or an electrical generator. A propulsion system having a propeller is coupled to the submersible engine to produce a swimmer propulsion machine and a generator is attached to the engine to produce an electrical generator. The submersible engine receives air from a snorkel that extends up above a water line The aquatic device has a fuel reservoir which may receive liquid fuel or may receive a fuel cylinder. Floatation chambers keep the aquatic device afloat with the engine submerged. The exhaust assembly and exhaust ports from the engine may also be submerged and the exhaust ports may provide additional thrust. A propulsion system housing integrates the drive shaft and propeller, clutch coupler, exhaust conduits and water flow conduits and is detachably attachable to the engine.

Abstract: A low emission submersible engine is part of a multipurpose aquatic device, such as an aquatic craft or an electrical generator. A propulsion system having a propeller is coupled to the submersible engine to produce a swimmer propulsion machine and a generator is attached to the engine to produce an electrical generator. The submersible engine receives air from a snorkel that extends up above a water line. The aquatic device has a fuel reservoir which may receive liquid fuel or may receive a fuel cylinder. Floatation chambers keep the aquatic device afloat with the engine submerged. The exhaust assembly and exhaust ports from the engine may also be submerged and the exhaust ports may provide additional thrust. A propulsion system housing integrates the drive shaft and propeller, clutch coupler, exhaust conduits and water flow conduits and is detachably attachable to the engine.

Abstract: A low emission submersible engine is part of a multipurpose aquatic device, such as an aquatic craft or an electrical generator. A propulsion system having a propeller is coupled to the submersible engine to produce a swimmer propulsion machine and a generator is attached to the engine to produce an electrical generator. The submersible engine receives air from a snorkel that extends up above a water line. The aquatic device has a fuel reservoir which may receive liquid fuel or may receive a fuel cylinder. Floatation chambers keep the aquatic device afloat with the engine submerge. The exhaust assembly and exhaust ports from the engine may also be submerged and the exhaust ports may provide additional thrust. A propulsion system housing integrates the drive shaft and propeller, clutch coupler, exhaust conduits and water flow conduits and is detachably attachable to the engine.

Abstract: A safety helmet has a shell, which can be a full face or open face type for encasing at least a portion of the user's head, a face shield mounted to the shell, and a sun visor mounted to an upper portion of the face shield. The face shield can be retractably or rotatably displaceable. The sun visor has a center section, a first wing section extending from a first side of the center section, and a second wing section extending from a second side of the center section that is opposite to the first side of the center section. The first wing section has a first mounting device mounting the sun visor to a first upper side of the face shield, and the second wing section has a second mounting device mounting the sun visor to a second upper side of the face shield that is opposite to the first upper side of the face shield. The sun visor can be fixedly or detachably mounted to the face shield or formed as an integral part of the face shield.

Abstract: A safety helmet has a shell, which can be a full face or open face type for encasing at least a portion of the user's head, a face shield mounted to the shell, and a sun visor mounted to an upper portion of the face shield. The face shield can be retractably or rotatably displaceable. The sun visor has a center section, a first wing section extending from a first side of the center section, and a second wing section extending from a second side of the center section that is opposite to the first side of the center section. The first wing section has a first mounting device mounting the sun visor to a first upper side of the face shield, and the second wing section has a second mounting device mounting the sun visor to a second upper side of the face shield that is opposite to the first upper side of the face shield. The sun visor can be fixedly or detachably mounted to the face shield or formed as an integral part of the face shield.