Paint Flushing System U.S. Patent 5,701,922. Dec. 30, 1997 R.E. Knipe, Jr. eta/., assignors to De~co Industries Ltd., Spring Valley, N.Y.

An apparatus for water-based flushing for paints and other coatings.

P o w d e r C o a t i n g D e v i c e U.S. Patent 5,702,209. Dec. 30, 1997 F. Mauchle, assignor to Gema Volstatic AG, St. Gallen, Switzerland

A powder feed device especially for powder coating material.

A n t i g r a v i t y B last C l e a n i n g U.S. Patent 5,702,289. Dec. 30, 1997 JM. Champaigne, assignor to Electronics Inc., Mishawaka, Ind,

A shot peening method comprising the steps of conveying media into a transport hose at a predetermined mass flow rate; supplying gas under pressure through an inlet opening for accelerating media to a conveyance velocity sufficient to convey the media through the hose; aiming the hose at a target workpiece; and discharging media from a terminal end of the hose toward the target workpiece to discharge the media upwards against the force of gravity to form a fountain.

H y d r o g e n P e r o x i d e P ick l ing of S ta in less Stee l u.s. Patent 5,702,534. Dec. 30, 1997 R.D. Rodabaugh and J.W. Leeker, assignors to Armco Inc., Middletown, Ohio

A process for removing scale from a ferrous alloy containing chromium com- prising pretreating the strip to crack the scale; immersing the strip into a first tank containing a first pickling acid to remove the cracked scale thereby forming a pickled strip; applying an aqueous solution free of dissolved iron and containing hydrogen peroxide to the pickled strip wherein any

remaining scale on the pickled strip be- comes activated by the peroxide; and im- mersing the activated strip into a second tank containing a second acid to remove any residual scale thereby forming a clean strip.

M e t h o d of A p p l y i n g a C o a t i n g u.s. Patent 5,702,578. Dec. 30, 1997 H. Umeda eta/., assignors to Mazda Motor Corp., Hiroshima, Japan

A method of applying a surface coating to a subject surface with a paint spray device, which forms a spray pattern of paint having a specified diameter compris- ing forming an undercoating on the subject surface; coating an opaque colored base layer over the undercoating; and coating a transparent layer containing dye coloring on the opaque colored base layer by rotat- ing the subject surface around an axis while continuously moving the subject surface along the axis.

C o r r o s i o n - R e s i s t a n t C o a t i n g u.s. Patent 5,702,581. Dec. 30, 1997 K.G. Keriin and P. Hamacher, assignors to Herberts GmbH, Germany

A process for painting metal substrates with a phosphate treatment and electro- phoretic dip coating without the use of environmentally hazardous metal com- pounds comprising pretreating the metal substrate with a spray or dip phosphate treatment solution without passivation treatment and without toxic metal com- pounds.

M e t h o d for S e l e c t i v e E lec t rop la t ing U.S. Patent 5,702,583. Dec. 30, 1997 J. W, Rischke and W. van Sprang, assignors to Meco Equipment Engineers B.V., Hertogenbosch, Netherlands

A method for selectively electroplating apertured metal or metallized products ob- tained by stamping or etching comprising continuously transporting apertured prod- ucts through a photoresist bath during op- eration, while the product are connected to a power source at least from a time the apertured products enter the bath until the apertured products exit from the bath so as to electrophoretically apply a fully closed photoresist layer to the apertured products; covering the apertured products after a dry- ing of the photoresist layer with at least one photomask at desired locations; exposing the apertured products covered with the at least one photomask; removing the photo- resist layer by means of a developing pro- cess from parts of the apertured products to be electroplated after removal of the at least one 'photomask, while a remaining part of the photoresist layer on the aper- tured products serves as a mask for the apertured products; and electroplating those parts of the apertured products from which the photoresist layer has been re- moved.

Plast ic S u b s t r a t e u.s. Patent 5,702,584. Dec. 30, 1997 L.N. Goenka et aL, assignors to Ford Motor Co., Dearborn, Mich.

A process of plating a metal on a plastic substrate comprising incorporating etch- able filler elements and etchant-resistant metal filler elements in the plastic substrate so that some etchable filler elements and some metal filler elements are continuous to the exposed surface of the substrate; etching the exposed surface of the plastic substrate to selectively remove the contig- uous etchable filler elements while leaving the contiguous metal filler elements ex- posed at the substrate surface; and plating a metal on the exposed surface of the sub- strate, using the exposed metal filler ele- ments as anchorages for the plating mate-

.>.>.>.> .> .>.> .> -> ->-> -> -> -> ->-> -> ->-> -> BUFFING & BUFFING COMPOUNDS BY SCHAFFNER

• Nickel buffing (Lime) - Stainless Steel Compound - Aluminum Compound - Chrome Coloring Rouge - Green Rouge- Plastic Compound - Emery Cake - Jeweler's Rouge - Grease Stick - Abras-Ease Abrasive Belt Lubricant - All ferrous and non-ferrous buffing compounds, Bar, Spray or Paste. ISO 9002 Certified Compounds Scha~er Metal Aircooled (Bias type) Buffs - Bias Cloth and Sisal-Bias Sisal, Treated or Untreated - Sanitizer Buffs - Rubber Sectional Contact Wheels - Cloth or Abrasive

~1~ Segment Buffs - Abrasive Types- Green Extra Life ® Bias Type- Coloring Buffs. (The above in 3", 5", or 9" centers, 6" diam. through 24" diam.) All full disc and piece buffs.

.41 kSCHAFFNER HEADQUARTERS ~ MANUFACTURING PLANTS A Pittsburgh, PA 15202 (412) 761-9902 • Emsworth, PA

/ ~ FAX: 412-761-8998 ° Jackson, MS

Circle 110 on reader information card

180 M E T A L F IN ISHING • J U N E 1998