Granted in the Metal Finishing Field Printed copies of patents are furnished by the Patent and Trademarks Office for $3.00 each. Address orders to: Commissioner of Patents and Trademarks, Washington, D.C. 20231

APPARATUS FOR PLATING WAFERS U.S. Patent 6,274,024. Aug. 14,200l

R. Kaufman and G.C. Dowries, assig-

nors to Technic Inc., Cranston, R.I.

A method of plating an article comprising providing an anode in proximity to the article; providing a cathode in contact with the arti- cle, wherein an electrostatic field is formed between the anode and cathode in response to a voltage difference applied across the anode and cathode; providing an electrically conductive element proximate to the article; and applying a control voltage to the electrically conductive element to alter the electrostatic field proxi- mate the article to control the plating of the article.

ELECTROSTATIC POWDER SPRAYING APPARATUS US. Patent 6,274,202. Aug. 14,200l

D.H. Campbell, assignor to Eurotec

Surface Coating Systems Ltd.,

Wigan, UK.

A method for controlling operation of a powder spray coating appara- tus in order to improve powder coat- ing comprising controlling output power charging a powder by pro- gressively reducing both a dis- charge current and a discharge voltage as the spray coating appa- ratus approaches a workpiece wherein the reduction in the dis- charge current and voltage com- mences at a distance of separation between the spray coating appa- ratus and workpiece, which is at least 100 mm, to provide substan- tially reproducible coating results during operation of the powder spray coating apparatus.

POWDER COATING US. Patent 6,274,672. Aug. 14,200l

R.R. Ambrose et al., assignors to PPG

Industries Ohio Inc., Cleveland

A powder coating composition con- taining functional polysiloxanes.

SONIC CLEANING WlTH AN INTERFERENCE SIGNAL

US. Patent 6,276,370. Aug. 21,200l

E.E. Fisch et al., assignors to

International Business Machines

Corp., Armonk, N.Y.

An apparatus for cleaning a sub- strate comprising a fluid for con- tacting the first side of the sub- strate; and a first sonic transducer and a second sonic transducer coupled to the fluid wherein the first transducer directs a first signal having a first frequency and a first phase to the first side, and wherein the second transducer directs a second signal having a second frequency and a second phase to the first side so as to provide an interference sig- nal to the first side that is a superposition of the first signal and second signal.

FOLDABLE PlATlNG APPARATUS US. Patent 6,277,252. Aug. 21,200l

A. Billman, assignor to Toolex Alpha

AB, Sundbyberg, Sweden

An apparatus for electroplating on a master for obtaining a matrix comprising a first frame portion supporting an electroplat- ing bath unit; a second frame por- tion supporting electrically oper- ated units including a display unit, the second Came portion being hingable connected to the first frame portion so that the apparatus may

selectively be placed in an operating position or a transport position; means for securing the first frame portion to the second frame portion in the operating position; and means for securing the first frame portion to the second frame portion in the transport position so that the Crst frame por- tion is unmovable with respect to the second &me portion.

APPARATUS FOR PLATING WAFERS

US. Patent 6,277,260. Aug. 21,200l

R. Kaufman and G.C. Downes, assig-

nors to Technic Inc., Cranston, R.I.

A plating apparatus comprising a container, a cathode, an anode sit- uated at a higher position within the container, and an intermedi- ate electrode situated at a position within the container below the higher position, a method of plat- ing an article situated at a lower position within the container and having a metal seed layer in elec- trical contact with the cathode.

POWDER COATlNG COMPOSlTlON US. Patent 6,277,917. Aug. 21,200l

A. Jurgetz et al., assignors to PPG

Industries Ohio Inc., Cleveland

A curable powder clear coating composition comprising at least one film-forming polymeric mate- rial, wherein the predominant polymeric material is a blend of at least two epoxy-functional acrylic copolymers.

CHROME-PLATED BODVSIDE MOLDING FOR A VEHICLE US. Patent 6,279,974. Aug. 28,200l

B. McCormack, assignor to Guardian

Automotive Trim Inc., Warren, Mich.

A bodyside molding to be attached

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