to an exhaust air installation being ar- ranged behind a rear side of the dry filter remote from the article to be painted so that air loaded with paint surplus is di- rected from a painting area to the dry filter, characterized in that the dry filter is arranged movably and that there is pro- vided a suction removal device separate from the exhaust air installation and sucks away directly from the dry filter the paint particles that have dried during a given time.

Painting Rack U.S. Patent 5,?‘20,81Z Feb. 24, 1998 R.A. Taylor, Springfield, 111.

A rack for supporting vehicle body parts during painting.

Desmutting and Deoxidizing Composition U.S. Patenf 5,720,823. Feb. 24, 1998 L.R. Car/son and PM. Johnson, assignors to Henkel Corp., Plymouth Meeting, Pa.

A liquid desmutting/deoxidizing compo- sition of matter consisting essentially of water; nitric acid; ferric ions; and a com-

ponent selected from the group consisting of molybdate and condensed molybdate an- ions, said composition not containing per- sulfate anions.

Electrostatic Liquid Applicator U.S. Pafenf 5,720,8/g. Feb. 24, 1998 1. V: Pu/s, assignor to Northrop Grumman Corp., Los Angeles

An electrostatic liquid applicator com- prising a stationary bell.

Pulse Anodizing Process U.S. Patent 5,720,866. Feb. 24, 1998 A. Erokhine et al, assignors to ARA Coating Inc., Dayton, Ohio

A method for producing a coating on a metallic member comprising exposing to an electrolyte fluid including a passivating agent and a modifying agent; inducing an electrical anodic signal between the metal- lic member and the electrolyte fluid: in- creasing a voltage magnitude of the elcc- trical anodic signal at a constant current magnitude to induce the form&~n of an oxide layer on the surface region of the metallic member and to induce the reaction

of the oxide layer with the modifying agent; monitoring the voltage magnitude of the electrical anodic signal; and inducing at least one cathodic square pulse between the metallic member and the electrolyte fluid when a change in the voltage magnitude greater than a threshold voltage value is determined in the monitoring step.

Electrochemical Recovery of Metals U.S. Patent 5,7.?0,867. Feb. 24, 1998 N. Anastashevic et al., assignors to Mefallgesellschaff AG, Frankfurt am Main, Germany

A process for the electrochemical depo- sitionnf a metal selected from the group that consists of copper, zinc, lead, nickel, and cobalt present in an ionogenic form in an aqueous electrolyte.

Treatment Method for Wastewater Sludge U.S. Patent 5,720,882. Feb. 24, 1998 K, Stendahl and S. Jokinen, asstgnors to Kemira Kemi AB, Hefsingborg, Sweden

A method for treating a wastewater sludge comprising phosphorus, heavy met-

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