clean the metal surface and regenerating the solution by Subjecting it to ultrafiltration.
Water-Based Aliphatic Polyurethane Coating
U.S. Patent $352,733.Oct.4, 1994 RI. Hart,assignor to RI. Hart Labs Inc., Irvine, Calif
Overspray Collection Baffle U.S. Pafent5,352,257. &t. 4, 1994 H.R. Powers, assignor to The Sherwi~Williams Co., Cleveland
A baffle arrangement for removing particles from an air stream passing therethrough.
A water-based, solvent-free, two-compo-
nent polyurethane-polyurea dispersion having a solids content of up to 65% by weight comprising the reaction product of an polyester-polyol solvent-free organic blend/amine blend aqueous phase component and a 100% solids aliphatic polyisocyanate.
Through-Hole Plating Process
U.S. Patent5,352,325. CM 4, 1994 Y Kato, assignorfo Eastern Co. Ltd., Chino,Japan
A method of forming through holes in printed wiring board substrates.
Powder Spray Gun
Method and Apparatus for Physical Vapor Deposition of Material Layers
Mazakas, Ontario, Calif.
U.S. Patent 5,354,443.Oct. 11, 1994 M.M.Moslehi,assignor to Texas lnstfuments Inc.,
U.S. Patent5,351,903. &t. 4, 1994 R. Ma&as and S. Conothers, assignorsto Russell
An electrostatic powder paint gun with trigger control variable voltage.
Bearing Races
U.S. Pafenf5,352,046. Oct. 4, 1994 P.C. Ward, assignor to MPB Corp., Keene, N.H.
Corrosion-resistant bearing races.
zinc-nickel
plated
device, said target stage having a sputtering target material in fluid communication with the said process chamber.
Powder Spray Device
U.S. Pateni5,353,995. Oct. 11, 1994 P. Chabert, ass&r to Sames S.A., Meylan, France
A device with rotating ionizer head for electrostatically spraying a powder coating product.
Vacuum Coating Apparatus U.S. Patent5,354,380. Oct. 11, 1994 J. Zejda, assignorto Leybold AG
An apparatus for the insertion and removal of a mask through the airlock of a vacuum coating apparatus.
Electrocoating Composition
Da//as
An apparatus for physical vapor deposition of material layers, comprising a distributed electron cyclotron resonance (ECR) microwave plasma processing device having a process chamber and a plasma formation region; a target stage connected to the said plasma processing
U.S. Patent5,354,441. Oct. II, 1994 K Mafsuo et al., assignors to Shinto Paint Co. Ltd., Amagasaki,Japan
A method comprising forming a coating film by the use of a coating composition and further subjecting the coating film to electrodeposition coating, said coating containing a resin and fine particles of an electrically semiconductive substance pre-
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