Abstract: An apparatus and method for the electroless plating of articles. A tank is provided for sequentially containing the respective constituent baths corresponding to the steps of the electroless plating process. An article to be plated, such as a printed circuit board, is supported in the center of the tank immersed in the constituent bath container therein. A pair of inwardly facing parallel manifolds are disposed at opposite ends of the tank. The constituent solution is pumped through a nozzle matrix in the inward facing wall of a first manifold onto the article and is simultaneously sucked away from the opposing side of the article through the matrix of the nozzles defined in the inward facing wall of a second manifold. The direction of pumping is alternated for periodically reversing the direction of suction and impingement.

Abstract: An aqueous, non-alkaline, foamable bathroom cleaner that is particularly effective in removing lime soap residues and hard water salt deposits from sinks, bathtubs, shower enclosures and metal surfaces, and in maintaining toilet bowls clean when incrementally added to the flush water, comprising:1. One to 30 percent by weight of an alkyl or alkylethoxy sulfate,2. One to 15 percent by weight of a long chain alkyl diethanolamide,3. One to 40 percent by weight of a short chain alkylbenzene sulfonate,4. Two to 30 percent by weight of nitrilotriacetate or amineacetate,5. 0 to 12 percent by weight of a conventional nonionic to anionic sulfonate surfactant,6. 55 to 90 percent by weight of water, and7. Mineral acid (sulfuric or hydrochloric) to adjust the pH within the range of pH 3-7.

Abstract: An apparatus and method for the electroless plating of articles. A tank is provided for sequentially containing the respective constituent baths corresponding to the steps of the electroless plating process. An article to be plated, such as a printed circuit board, is supported in the center of the tank immersed in the constituent bath contained therein. A pair of inwardly facing parallel manifolds are disposed at opposite ends of the tank. The constituent solution is pumped through a nozzle matrix in the inward facing wall of a first manifold onto the article and is simultaneously sucked away from the opposing side of the article through the matrix of the nozzles defined in the inward facing wall of a second manifold. The direction of pumping is alternated for periodically reversing the direction of suction and impingement.