Abstract: The present invention provides an LED signal light device comprising a central processing unit, a control panel, an LED signal light, an output and input interface, a battery and an adapter. The central processing unit comprises a microprocessor, a memory and an interface circuit for controlling the operation of the whole device, and outputting a signal and receiving a command through the output and input interface. The control panel is a printed circuit board recorded a circuit therein. The LED signal light consists of plural LEDs, which are three coloring LEDs or color changing LEDs. The LEDs actively show a light display in a closed circuit and show various colors accompanying with various arrangements into abstract symbols for indicating various traffic situations. The device can be connected to an AC power supply of 110 V or 220 V, and the AC power is converted to DC power by an adapter, which also stabilizes the current provided to the whole device.

Abstract: A bath brush includes a main body, a massaging member, and a bristle holder connected to a top of the massaging member. The bristle holder is provided with a plurality of insertion holes for implanting tufted bristles therein and a plurality of through holes for massaging projections integrally formed on the massaging member to upward extend therethrough and expose from the bristle holder. An assembly of the massaging member and the bristle holder is connected to one side of the main body to form a bath brush having massaging projections that do not easily separate therefrom to ensure the brush and massage functions of the bath brush. And, the massaging member may be easily assembled to the bristle holder to enable reduced manufacturing cost of the bath brush.

Abstract: The present invention relates to a method for treating spent tin or tin/lead stripping solution used in the electronic industry, particularly in the manufacture of printed circuit boards or a lead frames. Said method comprises (i) electrolytically reducing copper ions in the solution to copper at a low temperature; (ii) electrolytically oxidizing Sn2+ and Pb2+ in the solution at a high temperature to form solid tin and lead oxides and hydroxides; (iii) separating solid tin and lead oxides and hydroxides from the solution; (iv) dissolving tin and lead oxides and hydroxides obtained in step (iii) in a strong alkali or acidic solution; and (v) electrolytically reducing the alkali or acidic solution obtained in step (iv) at a high temperature to recover metallic tin and lead. Also, the filtrate obtained in step (iii) above is useful for preparing fresh tin or tin/lead stripping solution.

Abstract: A massaging device includes a handle and the rollers at the two corners of two ends of the handle; at least the two rollers of one end are not parallel and slant downward. When the massaging device is moved to and fro on skin to massage muscles and stimulate meridian points, the two non-parallel rollers squeezes muscles located between them and push fats under skin to help a user in body fitness.

Abstract: The present invention relates to a method for treating spent tin or tin/lead stripping solution used in the electronic industry, particularly in the manufacture of printed circuit boards or a lead frames. Said method comprises (i) electrolytically reducing copper ions in the solution to copper at a low temperature; (ii) electrolytically oxidizing Sn2+ and Pb2+ in the solution at a high temperature to form solid tin and lead oxides and hydroxides; (iii) separating solid tin and lead oxides and hydroxides from the solution; (iv) dissolving tin and lead oxides and hydroxides obtained in step (iii) in a strong alkali or acidic solution; and (v) electrolytically reducing the alkali or acidic solution obtained in step (iv) at a high temperature to recover metallic tin and lead. Also, the filtrate obtained in step (iii) above is useful for preparing fresh tin or tin/lead stripping solution.

Abstract: A bath ball includes a corrugated annular body being formed by axially squeezing a long sleeve-shaped elastic net woven or knitted from artificial fibers and having an extent of elasticity. The corrugated annular body is tied at two diametrically opposite points with fastening means so that outer peripheral portions of the corrugated annular body naturally loosely expand about the tied points toward two outer sides to form a puffy body close to a ball. The corrugated annular body includes a plurality of valleys, into which one or more types of cleaning elements may be selectively embedded to extend in a direction parallel with the valleys. The cleaning elements enable the bath ball to hold more bubbles and provide enhanced cleaning effect.

Abstract: A bath brush includes a main body, a massaging member, and a bristle holder connected to a top of the massaging member. The bristle holder is provided with a plurality of insertion holes for implanting tufted bristles therein and a plurality of through holes for massaging projections integrally formed on the massaging member to upward extend therethrough and expose from the bristle holder. An assembly of the massaging member and the bristle holder is connected to one side of the main body to form a bath brush having massaging projections that do not easily separate therefrom to ensure the brush and massage functions of the bath brush. And, the massaging member may be easily assembled to the bristle holder to enable reduced manufacturing cost of the bath brush.