Abstract: A foldable locking step stool includes a stool platform configured to hingedly fold into a first stool platform member and a second stool platform member. The stool has a child-proof locking mechanism preventing a child from pinching their fingers when the stool platform folds. The child-proof locking mechanism includes a pair of slider elements required to be engaged simultaneously to release a pair of locking bolts enabling the folding of the stool. Overmolded grips ensure traction during use. An integrated handle is hidden when the stool is in use, but accessible when moving or stowing the stool.

Abstract: The present invention relates to a method for preparing a simply prepared, safe, nontoxic, and biodegradable modified starch; the present invention further relates to use thereof as an adsorbent in adsorbing heavy metal ions and organic compounds, and belongs to the technical field of modified starch material. Starch is used as raw material and modified with thiourea and tungsten chloride; the starch binds to heavy metal ions through a series of coordination or chelation, and thus produces a heavy metal ion adsorption effect; a starch-based carbon composite is prepared, i.e., a modified starch composite. The simply prepared, environmentally friendly, and recyclable modified starch adsorbent with excellent performance and higher practical value effectively removes He ions and such organic compounds as methylene blue from the wastewater; the modified starch adsorbent is expected to develop into a novel water treatment agent due to low loss rate, biodegradability, and recyclability.

Abstract: A toilet trainer assembly is provided, having components which compactly fit together efficiently for shipping and stowing while also providing an improved experience for a child during use. The toilet trainer features a base member, a toilet seat, and a compartment which resembles a traditional toilet tank. The base member provides a hollow interior configured to be sized and shaped to fit the compartment and the toilet seat within when stowed. A flush mechanism provided on the toilet tank is configured to produce various sounds when activated.

Abstract: The present invention relates to a method for preparing a simply prepared, safe, nontoxic, and biodegradable modified starch; the present invention further relates to use thereof as an adsorbent in adsorbing heavy metal ions and organic compounds, and belongs to the technical field of modified starch material. Starch is used as raw material and modified with thiourea and tungsten chloride; the starch binds to heavy metal ions through a series of coordination or chelation, and thus produces a heavy metal ion adsorption effect; a starch-based carbon composite is prepared, i.e., a modified starch composite. The simply prepared, environmentally friendly, and recyclable modified starch adsorbent with excellent performance and higher practical value effectively removes He ions and such organic compounds as methylene blue from the wastewater; the modified starch adsorbent is expected to develop into a novel water treatment agent due to low loss rate, biodegradability, and recyclability.