Abstract: An air cleaning apparatus with a moist filter is disclosed. More particularly, the present invention relates to an air cleaning apparatus with a moist filter, being operated such that: water stored in a bottom reservoir tank flows upward in a centrifugal manner; water molecules are finely cleaved in a microfine state and injected through multiple injection holes in the same centrifugal manner to become moist; under such conditions, water flowing into a rotational column, to which a centrifugal force is applied, is filtered while circulating a cycle wherein external air inflowing through air input holes formed below a moist layer is adhered to water molecules in the moist layer and drops down, thereby enabling ultrafine dust as well as fine dust to be filtered with high efficiency and excellent economic advantage.

Abstract: A zipper with improved fastening stability is disclosed. The improved zipper opens and closes according to the engagement and separation of a plurality of coupling elements formed on facing surfaces of a pair of zipper tapes and includes a zipper slider for engaging and separating the coupling elements, guiding rails attached on upper surfaces of the zipper tapes, and an auxiliary slider that guides the guiding rails as they slide through it to thereby gather the zipper tapes before the coupling elements are engaged. The structure is compact, and the zipper can be engaged with minimal force, even when the garment is tightly stretched or the zippered enclosure (suitcase, e.g.) is tightly packed with material.

Abstract: An inline skate mounting a pair of air tubes is invented for absorbing shock transmitted to its wheels so as to allow the use of rigid wheels, and to protect the rider's knees and ankles from shock. The inline skate comprises a frame having insertion compartments for mounting the shock absorbers, guide recesses, brackets for defining desired spaces, and a wheel holder having supporting plates. The wheels are coupled to and supported by the sides of the supporting plate and inserted into the guide recesses so that the wheel holder moves upward and downward when an external force is applied so as to transmit the external force to the shock absorbers. The shock absorbers are inserted into the insertion compartments and filled with air to absorb the external force when the wheel holder moves vertically. Since the wheel holder moves vertically as the skate traverses an uneven surface, the inline skater can balance stably and safely.

Abstract: A roller shoe having a brake pad of this invention can perform a stable brake operation as the brake pad is frictioned to the ground if the ankle is bent further a bit more backward by detachably mounting a brake pad of high strength on the heel portion of an inclined plane of the shoe sole where a wheel is mounted. This roller shoe has a structure wherein a wheel for moving a roller shoe wearer by rotation is mounted on a concave groove formed on an inclined plane at the heel portion of the sole of a sports shoe to be axially coupled thereto and a brake unit for performing a brake function by a friction to the ground by bending the ankle backward at a predetermined angle is mounted on the heel portion of the sole where the wheel is mounted.