wherein the surface is blasted with particles of a titanium oxide.

Blasting Nozzle U.S. Pafent 5,484,325. Jan. 16, 1996 J.D. Shank, assignor to Church & Dwight Co. Inc., Princefon, N.J.

A blast nozzle containing a water atom- izer for dust control.

Electroplating Process U.S. Patent 5,484,518. Jan. 16, 1996 R. L. Goldberg, assignor to Shipley Co. lm., Matlborough, Mass.

A process for electroplating a substrate having metallic regions and nonmetallic regions with a metal, comprising providing an aqueous dispersion of particles selected from the group consisting essentially of conductive metal sultïdes and oxides and a surfactant, said particles being present in a concentration ranging between 0.1 and 5% by weight of the dispersion, coating the substrate with the dispersion and drying, whereby the substrate is coated with a sub- stantially continuous layer of the particles,

and electroplating the metal onto the con- tinuous layer of particles.

Apparatus for Maintaining Electroless Plating Solutions U.S. Patent 5,484,626. Jan. 16, 1996 D. E. Storjohann and S.J. Wiberg, assignors to Shipley Co. L.L. C., Mariborough, Mass.

A process for maintaining the plating rate of an electroless plating solution es- sentially constant, comprising providing an electroless plating solution and operating at a desired plating rate, monitoring the plat- ing rate by means of plating metal onto the quartz crystal element of a microbalance, the quartz crystal microbalance providing an input representing the plating rate to a computer, and supplying an output from the computer to maintain the plating rate at a desired essentially constant value by con- trolling the addition of at least one plating solution component to the plating solution.

Article Having a Coating Simulating Brass U.S. Patent 5,484,663. Jan. 16, 1996

PC-6 1 Clean Metal Surfaces

Safely and efficiently remove rust, corrosion, oils and grease, or stains hom iron, steel, copper, aluminum, brass, bronze, nickel, nickel/silver.

I ?? Environmentally safe I ?? Reduces personal risk ?? Easy disposal ?? Does not emit harmful fumes ?? Can be used hot or cold ?? Stable and long lasting ??Avoid dangerous acids/alkalis

I THE SAFER PICKLING COMPOUND I

800-695-0792

I I I I I I I I I I I I I I I I m

’ 401-333-5300 ?? FAX401-728-8883 ’ L ~~-~~~~~~~ ml

Circle 032 on reader information card

S. R. Moysan and R. W Sugg, assignors to Baldwin Hardware Corp., Reading, Pa.

An article comprising a metallic sub- strate having disposed on at least a portion of its surface a multilayer coating simulat- ing brass comprising a metallic layer com- prised of substantially amorphous nickel- tungsten-boron alloy containing at least about 0.05 weight percent boron; a layer comprised of zirconium or titanium; and a top layer comprised of zirconium com- pound or titanium compound.

Spray Gun Washer U.S. Patent 5,485,860. Jan. 23, 1996 RA. Rob6 et al, assignors fo Herkules Equipment Corp., Walled Lake, Mich.

A paint removal system, which includes a housing within which a paint gun is tem- porarily held for removing paint from the paint gun.

Vibratory Tumbling Machine Vessel U.S. Patent 5,486,135. Jan. 23, 1996 J. Arpaio, Blairstown, N. J.

Fax: (203) 7760666 Brookfield, CT. USA 06604

L Solving Power ProbLems...Since 1944 / Circle 059 on reader information card

84 METAL FINISHING ?? OCTOBER 1996