Abstract: A device for closing and resealing an opened container such as a beverage can comprises a threaded cap (13) and a corresponding threaded skirt (22) adapted to be threaded together and apart. The skirt has an upper surface that moves toward and away from a cam surface formed in the underside of the cap as the cap and skirt are threaded together and apart. A compression ring (27) adapted to be compressed and expanded in diameter is captured between the upper surface of the skirt and the cam surface of the cap. As the cap is threaded progressively onto the skirt, the compression ring is engaged by and rides along the cam surface and is thus progressively compressed in diameter. An annular sealing gasket (21) depends from the underside of the cap (13) and is sized to seat about the peripheral portion of the end of the container as the cap moves downwardly toward the top of the container.

Abstract: A dental implement is provided for removing stains and plaques from the teeth, and which may also be used as a gum stimulator. The implement is in the form of an elongated handle which may, for example, have the configuration of any one of the standard types of tooth brush handles. The handles may, for example, have a round, square, triangular or other cross-section shape, and it may be made of plastic or other suitable material. A tip is mounted on one end of the handle which is made of hardened rubber, plastic, or other appropriate material, and which has embedded in it an abrasive material such as a carborundum particles, pumice, or the like. The tip may also contain fluoride compounds, if desired, to aid in the resistance of the teeth to decay. It also may contain an appropriate flavoring to make the operation more enjoyable to the user. The other end of the handle is shaped to have a pick and hoe configuration to aid in the removal of plaques from the surface of and between the teeth.