Abstract: A heat-insulation safety nursing bottle includes a nursing bottle body, a heat shield cap fastened to the bottleneck of the nursing bottle body to hold down a nipple, and a cylindrical heat shield body fastened to the heat shield cap and surrounding the nursing bottle body for holding by a baby or nursing mother to prevent scalding. The cylindrical heat shield body prohibits the baby from touching or eating broken chips if the nursing bottle body is broken accidentally.

Abstract: A dual opening nursing bottle includes a bottle body having a top opening and a bottom opening, a nipple attached to the top opening of the bottle body, a top cap fastened to the top opening of the bottle body to hold down the nipple in place, a bottom cap fastened to the bottom opening of the bottle body and having a center through hole, a pad detachably mounted inside the bottom cap to seal the bottom opening of the bottle body, and a one-way air valve installed in the pad for allowing outside air to be sucked into the inside of the bottle body and prohibiting the contained fluid from flowing out of the bottom body through the bottom opening.

Abstract: A jogging kick scooter is constructed to include a rectangular open base frame, a track assembly formed of rolls and an endless belt and mounted in the open base frame, a steering control handlebar mounted in the front side of the open base frame to hold and control steering of a front wheel, two rear wheels bilaterally coupled to the open base frame at a rear side, and transmission gear sets respectively connected between the rear wheels and the wheel axle of the last roll of the track assembly and adapted to rotate the rear wheels when the user walks or runs on the track assembly.

Abstract: A jogging kick scooter is constructed to include a rectangular open base frame, a track assembly formed of rolls and an endless belt and mounted in the open base frame, a steering control handlebar mounted in the front side of the open base frame to hold and control steering of a front wheel, two rear wheels bilaterally coupled to the open base frame at a rear side, and transmission gear sets respectively connected between the rear wheels and the wheel axle of the last roll of the track assembly and adapted to rotate the rear wheels when the user walks or runs on the track assembly.

Abstract: A jogging scooter is constructed to include a base holding a set of tracker rollers, two tracks mounted on the tracker rollers and arranged in parallel, a front wheel rack provided at a front side of the base, two front wheel holders respectively pivoted to the front wheel rack and linked by a link and supporting a respective front wheel, a steering column mounted on the front wheel rack and coupled to the link for steering control, a rear wheel axle mounted in a rear side of the base and supporting a pair of rear wheels, and two gears meshed together and respectively mounted on the rear wheel axle and the rear tracker roller for transmission of rotary force.