An apparatus or educational toy comprising a main body (120, 220, 320, 520) and a drive mechanism (140, 240, 340, 540), wherein the drive mechanism (140, 240, 340, 540) comprises a reservoir (142, 242, 342) for storing a driving liquid, a discharge outlet (144, 244a, 244b, 344, 544a, 544b) through which the driving liquid is discharged from the main body (120, 220, 320, 520) to generate a driving thrust, a liquid delivery path (146, 246a, 246b, 346) for delivering the driving liquid for a reservoir outlet (148, 348, 448) to the discharge outlet (144, 244a, 244b, 344, 544a, 544b), and a threshold setting device (147, 347); and wherein the threshold setting device (147, 347) sets a threshold thrust level so that the driving liquid is to pass from the reservoir (142, 242, 342) and discharged from the discharge outlet (144, 244a, 244b, 344, 544a, 544b) upon reaching the threshold thrust level during operation.

An apparatus or educational toy comprising a main body (120, 220, 320, 520) and a drive mechanism (140, 240, 340, 540), wherein the drive mechanism (140, 240, 340, 540) comprises a reservoir (142, 242, 342) for storing a driving liquid, a discharge outlet (144, 244a, 244b, 344, 544a, 544b) through which the driving liquid is discharged from the main body (120, 220, 320, 520) to generate a driving thrust, a liquid delivery path (146, 246a, 246b, 346) for delivering the driving liquid for a reservoir outlet (148, 348, 448) to the discharge outlet (144, 244a, 244b, 344, 544a, 544b), and a threshold setting device (147, 347); and wherein the threshold setting device (147, 347) sets a threshold thrust level so that the driving liquid is to pass from the reservoir (142, 242, 342) and discharged from the discharge outlet (144, 244a, 244b, 344, 544a, 544b) upon reaching the threshold thrust level during operation.

The present invention relates to a power driven toy for propelling the toy through a body of water having an upper toy for floating on the surface of water and a lower hollow capsule removably connected to the upper toy for submerging the capsule in a body of water. The capsule has an interior section for receiving therein a replaceable powder agent that dissolves in water, and a removable cover for opening and closing the capsule. The capsule also has first and second openings located at the two ends of the capsule for forming and transmitting streams of gas out of the two openings for propelling the upper toy on the surface of the body of water. The lower hollow capsule is removably connected to the upper toy by a rotatable connecter for attaching the capsule to the toy. The powder agent is a tablet that dissolves in water and produces carbon dioxide that is emitted through the openings of the capsule for propelling the toy through the body of water. The toy has the configuration of a duck, boat, car, or any other toy.

The present invention relates to a power driven toy for propelling the toy through a body of water having an upper toy for floating on the surface of water and a lower hollow capsule removably connected to the upper toy for submerging the capsule in a body of water. The capsule has an interior section for receiving therein a replaceable powder agent that dissolves in water, and a removable cover for opening and closing the capsule. The capsule also has first and second openings located at the two ends of the capsule for forming and transmitting streams of gas out of the two openings for propelling the upper toy on the surface of the body of water. The lower hollow capsule is removably connected to the upper toy by a rotatable connecter for attaching the capsule to the toy. The powder agent is a tablet that dissolves in water and produces carbon dioxide that is emitted through the openings of the capsule for propelling the toy through the body of water. The toy has the configuration of a duck, boat, car, or any other toy.

A pump assembly includes an electric motor including a rotor having a shaft extending from the electric motor, the shaft including a substantially single unit of material and having an end rotationally couplable to an impeller that when the shaft is rotatably displaced by the electric motor, the impeller displaces a fluid to create a jet of fluid. An enclosure having a cavity arranged between a front surface and a back surface of the enclosure, and the electric motor being arrangeable in the cavity of the enclosure. The enclosure protecting the electric motor arranged in the enclosure from a fluid, and a dielectric fluid is containable in the cavity of the enclosure to immerse the electric motor in the dielectric fluid for preventing corrosion of the electric motor from the fluid.

A pump assembly includes an electric motor including a rotor having a shaft extending from the electric motor, the shaft including a substantially single unit of material and having an end rotationally couplable to an impeller that when the shaft is rotatably displaced by the electric motor, the impeller displaces a fluid to create a jet of fluid. An enclosure having a cavity arranged between a front surface and a back surface of the enclosure, and the electric motor being arrangeable in the cavity of the enclosure. The enclosure protecting the electric motor arranged in the enclosure from a fluid, and a dielectric fluid is containable in the cavity of the enclosure to immerse the electric motor in the dielectric fluid for preventing corrosion of the electric motor from the fluid.

A pump assembly includes a motor arranged adjacent to a front surface of a first body, the first body having a cavity arrange between the front surface and a back surface of the first body. The motor may include a rotor having a shaft formed substantially of a single unit of material that is coupled directly to an impeller including a bearing surface received by a cooperating bearing surface arranged in a nozzle. The bearing surface of the impeller, and the cooperating bearing surface of the nozzle, support the impeller rotationally on the shaft such that when the shaft is rotatably displaced by the motor, the impeller displaces the water into the cavity arranged between the front surface of the first body and the back surface of the first body and into the nozzle to create a jet of water.

A pump assembly includes a motor arranged adjacent to a front surface of a first body, the first body having a cavity arrange between the front surface and a back surface of the first body. The motor may include a rotor having a shaft formed substantially of a single unit of material that is coupled directly to an impeller including a bearing surface received by a cooperating bearing surface arranged in a nozzle. The bearing surface of the impeller, and the cooperating bearing surface of the nozzle, support the impeller rotationally on the shaft such that when the shaft is rotatably displaced by the motor, the impeller displaces the water into the cavity arranged between the front surface of the first body and the back surface of the first body and into the nozzle to create a jet of water.

The invention is Sinkable Toy Warships, in particular, remotely controlled toy boats that can shoot water, be shot at by other boats, retain water that hits them directly, continue to be operational after being hit, sink when a predetermined volume of water has been absorbed, remain near the surface where it can be located and can be recovered after being submerged with no ill-effects to the electric and electronic components on board.

The invention is Sinkable Toy Warships, in particular, remotely controlled toy boats that can shoot water, be shot at by other boats, retain water that hits them directly, continue to be operational after being hit, sink when a predetermined volume of water has been absorbed, remain near the surface where it can be located and can be recovered after being submerged with no ill-effects to the electric and electronic components on board.