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pressed air supply lines for respectively supplying compressed air toe ach one of the plurality of gun barrels; and a plurality of electrical power supply lines for respec- tively supplying electrical power to the plu- rality of electrodes disposed within the gun barrel. Electrostatic Spray System U.S. Patent 5,636,799. June 10, 1997 D.L. Trusty et aL, assignors to Clark Equipment Co., Woodcliff Lake, N.J. An electrostatic system for spraying liq- uids carrying an electrostatic charge com- prising a source of stored spray liquid on a mobile frame including a sprinkler head for providing a sprinkler column of spray liq- uid from a source; the mobile frame having at least one arm having an outer end; an open-top container spaced from the sprin- kler head for receiving the liquid; electrical isolator support link connected to the arm and depending therefrom for supporting the container relative to the mobile frame; and a pressurization system for receiving liquid from the open-top container and including a high voltage input for electrostatically charging the liquid being discharged from the pressurization system. Chromium-Plated Composite Wheel U.S. Patent 5,636,906. June 10, 1997 L.A. Chase, assignor to Lacks Industries Inc., Grand Rapids, Mich. An overlay for a composite decora- tive vehicle wheel having a web por- tion and a peripheral rim portion for mounting a vehicle tire. Carbon Dioxide U.S. Patent 5,637,027. June 10, 1997 M.P. Palornbo et aL, assignors to Hughes Aircraft Co., Los Angeles A carbon dioxide jet spray cleaning sys- tem comprising a holding tank for contain- ing liquid carbon dioxide; a spray nozzle coupled to the holding tank for producing a plume of carbon dioxide snow: a valve coupled for controlling the flow of the liq- uid carbon dioxide; and a sensor coupled to the nozzle and located in the path of the plume of carbon dioxide snow for sensing the temperature providing a first output signal indicative of the temperature. Polishing a Noble Metal U.S. Patent 5,637,028. June 10, 1997 J. Haisma et aL, assignors to U.S. Philips Corp., New York, N. Z A method of polishing a surface of a noble metal or an alloy comprising mainly noble metal comprising moving a polishing means and the surface with respect to each other while exerting a polishing pressure on the surface, characterized in that the polishing means comprises a composition of demineralized water with 20 to 40% by weight of an organic liquid comprising a polyalcohol or a derivative thereof and par- ticles having a Knoop's hardness between 5 and 50 GPa. Shot Blasting Apparatus U.S. Patent 5,637,029. dune 10, 1997 WB. Lehane, Cambridge, Ontario, Canada A method of shot blast cleaning a work- piece comprising applying a composite stream of carrie1 liquid and particulate abrasive materia under high velocity within a blast cabinet for cleaning by an abrasive throwing wheel having a vaned impeller rotatably mounted within a casing lbr receiving an abrasive slurry at a rela- tively low velocity and discharging the slurry at a relatively high velocity. Triboelectric Coating Powder u.s. Patent 5,637,136. June 10, 1997 t~R. Horinka and M.J. Korec,~y, assignors to Morton International Inc., Chicago A mass of eleztrostatically chargeable plastic powder for triboelectric coating ap- plication having a particle size distribution comprising in weight percent: 5 to 100% smaller than 88 microw;, 5% smaller than 15.56 microns, and 6% smaller than 11 microns with an average particle size be- tween 30 and 45 microns. Sputtering Shields u.s. Patent 5,637,199 June 10, 1997 R.D. Lorentz and J.H. Sextoc, assignors to 3M Co., St. Paul, Minn. A method of forming a shield in a sput- ter deposition apparatus comprising pro- viding a shielding material; combining a volatile suspending liquid and a binder with the shielding material to form a slurry; applying the slurry to a shielding surface in a sputter deposition apparatus; and drying the slurry by evaporating the volatile sus- pending liquid at a temperature at least as low as the temperature at which the com- bining step was performed, thereby form- ing a shield for reducing impurities depos- ited in a coating on a substrate during a sputter deposition proce.~s. Electrolytic Coating of Steel Strip U.S. Patent 5,637,205. June !0, 1997 U. Krupicka and G. M~resch, assignors to Andritz. Patentverwaltungs GmhH, Graz, Austria in a process for Ihe electro]ytical coating of an object of steel on at least one side thereof, wherein in a galvanic cell contain- ing an aqueous electrolyte solution of zinc chloride and ferrous chloride having a pH between 0.1 and 3.0 and using insoluble anodes, metallic zinc, or a zinc-iron alloy is deposited on the object connected as a cathode, the improvement comprising a partial flow of the electrolyte solution, which is continuously conducted into a col- umn filled with metallic zinc, a trivalent iron formed during electrolysis is reduced to a bivalent iorn, and metallic zinc being dissolved simultaneously therewith by rins- ing the surface of the steel object with the electrolyte solution. Deoxidizing Composition U.S. Patent 5,637,252. June 10, 1997 P.M. Johnson and L.R. Carlson, assignors to Henkel Corp., Plymouth Meeting, Pa. A process for deoxidizing and etching an aluminum surface that is in contact with a titanium surface by contacting both sur- faces with an aqueous liquid composition that spontaneously deoxides and etches the aluminum surface by chemical reaction therewith wherein the rate of etching of the titanium surface is not greater than 0.25 micrometer per hour; the aqueous liquid composition comprises water and a com- ponent of dissolved acid with a larger ion- ization constant in water than fluoboric acid or boric acid; a component of dis- solved fluoborate anions; and a component of dissolved boric acid; and the aqueous liquid composition comprises not more than 0.35% of hexavalent chromium. Coated Abrasive U.S. Patent 5,637,386. June 10, 1997 D.H. Darjee, assignor to Norton Co., Worcester, Mass. Coated abrasive material having length and width dimensions and comprising a substrate selected from the group consist- ing of woven and knit materials having a weight of less than 250 g/m 2 and abrasive particles bonded directed to the substrate in a spaced discontinuous pattern, the coated abrasive material having a recovery of at least 80% when subjectd to a strain produc- ing an elongation of at least 50% in the length direction or at least 25% in the width direction. Organic Composite Plated Steel Plate u.s. Patent 5,837,403. June 10, 1997 S. Kuwamura et al., assignors to Daimppon Ink and Chemicals Inc., and Nippon Steel Corp., Tokyo An improved organic composite plated steel plate obtained by applying a thermo- setting resin to a chromate-coated alloy- plated steel plate and curing the thermoset- ting resin, wherein an aqueous vinyl- modified epoxy ester resin is used as the thermosetting resin. 116 METAL FINISHING FEBRUARY 1998

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pressed air supply lines for respectively supplying compressed air toe ach one of the plurality of gun barrels; and a plurality of electrical power supply lines for respec- tively supplying electrical power to the plu- rality of electrodes disposed within the gun barrel.

Electrostatic Spray System U.S. Patent 5,636,799. June 10, 1997 D.L. Trusty et aL, assignors to Clark Equipment Co., Woodcliff Lake, N.J.

An electrostatic system for spraying liq- uids carrying an electrostatic charge com- prising a source of stored spray liquid on a mobile frame including a sprinkler head for providing a sprinkler column of spray liq- uid from a source; the mobile frame having at least one arm having an outer end; an open-top container spaced from the sprin- kler head for receiving the liquid; electrical isolator support link connected to the arm and depending therefrom for supporting the container relative to the mobile frame; and a pressurization system for receiving liquid from the open-top container and including a high voltage input for electrostatically charging the liquid being discharged from the pressurization system.

Chromium-Plated Composite Wheel U.S. Patent 5,636,906. June 10, 1997 L.A. Chase, assignor to Lacks Industries Inc., Grand Rapids, Mich.

An over lay for a compos i te decora- t ive vehic le wheel having a web por- tion and a peripheral r im port ion for mount ing a vehicle tire.

Carbon Dioxide U.S. Patent 5,637,027. June 10, 1997 M.P. Palornbo et aL, assignors to Hughes Aircraft Co., Los Angeles

A carbon dioxide jet spray cleaning sys- tem comprising a holding tank for contain- ing liquid carbon dioxide; a spray nozzle coupled to the holding tank for producing a plume of carbon dioxide snow: a valve coupled for controlling the flow of the liq- uid carbon dioxide; and a sensor coupled to the nozzle and located in the path of the plume of carbon dioxide snow for sensing the temperature providing a first output signal indicative of the temperature.

Polishing a Noble Metal U.S. Patent 5,637,028. June 10, 1997 J. Haisma et aL, assignors to U.S. Philips Corp., New York, N. Z

A method of polishing a surface of a noble metal or an alloy comprising mainly noble metal comprising moving a polishing means and the surface with respect to each other while exerting a polishing pressure

on the surface, characterized in that the polishing means comprises a composition of demineralized water with 20 to 40% by weight of an organic liquid comprising a polyalcohol or a derivative thereof and par- ticles having a Knoop's hardness between 5 and 50 GPa.

Shot Blasting Apparatus U.S. Patent 5,637,029. dune 10, 1997 WB. Lehane, Cambridge, Ontario, Canada

A method of shot blast cleaning a work- piece comprising applying a composite stream of carrie1 liquid and particulate abrasive materia under high velocity within a blast cabinet for cleaning by an abrasive throwing wheel having a vaned impeller rotatably mounted within a casing lbr receiving an abrasive slurry at a rela- tively low velocity and discharging the slurry at a relatively high velocity.

Triboelectric Coating Powder u.s. Patent 5,637,136. June 10, 1997 t~R. Horinka and M.J. Korec,~y, assignors to Morton International Inc., Chicago

A mass of eleztrostatically chargeable plastic powder for triboelectric coating ap- plication having a particle size distribution comprising in weight percent: 5 to 100% smaller than 88 microw;, 5% smaller than 15.56 microns, and 6% smaller than 11 microns with an average particle size be- tween 30 and 45 microns.

Sputtering Shields u.s. Patent 5,637,199 June 10, 1997 R.D. Lorentz and J.H. Sextoc, assignors to 3M Co., St. Paul, Minn.

A method of forming a shield in a sput- ter deposition apparatus comprising pro- viding a shielding material; combining a volatile suspending liquid and a binder with the shielding material to form a slurry; applying the slurry to a shielding surface in a sputter deposition apparatus; and drying the slurry by evaporating the volatile sus- pending liquid at a temperature at least as low as the temperature at which the com- bining step was performed, thereby form- ing a shield for reducing impurities depos- ited in a coating on a substrate during a sputter deposition proce.~s.

Electrolytic Coating of Steel Strip U.S. Patent 5,637,205. June !0, 1997 U. Krupicka and G. M~resch, assignors to Andritz. Patentverwaltungs GmhH, Graz, Austria

in a process for Ihe electro]ytical coating of an object of steel on at least one side thereof, wherein in a galvanic cell contain- ing an aqueous electrolyte solution of zinc chloride and ferrous chloride having a pH between 0.1 and 3.0 and using insoluble

anodes, metallic zinc, or a zinc-iron alloy is deposited on the object connected as a cathode, the improvement comprising a partial flow of the electrolyte solution, which is continuously conducted into a col- umn filled with metallic zinc, a trivalent iron formed during electrolysis is reduced to a bivalent iorn, and metallic zinc being dissolved simultaneously therewith by rins- ing the surface of the steel object with the electrolyte solution.

Deoxidizing Composition U.S. Patent 5,637,252. June 10, 1997 P.M. Johnson and L.R. Carlson, assignors to Henkel Corp., Plymouth Meeting, Pa.

A process for deoxidizing and etching an aluminum surface that is in contact with a titanium surface by contacting both sur- faces with an aqueous liquid composition that spontaneously deoxides and etches the aluminum surface by chemical reaction therewith wherein the rate of etching of the titanium surface is not greater than 0.25 micrometer per hour; the aqueous liquid composition comprises water and a com- ponent of dissolved acid with a larger ion- ization constant in water than fluoboric acid or boric acid; a component of dis- solved fluoborate anions; and a component of dissolved boric acid; and the aqueous liquid composition comprises not more than 0.35% of hexavalent chromium.

Coated Abrasive U.S. Patent 5,637,386. June 10, 1997 D.H. Darjee, assignor to Norton Co., Worcester, Mass.

Coated abrasive material having length and width dimensions and comprising a substrate selected from the group consist- ing of woven and knit materials having a weight of less than 250 g/m 2 and abrasive particles bonded directed to the substrate in a spaced discontinuous pattern, the coated abrasive material having a recovery of at least 80% when subjectd to a strain produc- ing an elongation of at least 50% in the length direction or at least 25% in the width direction.

Organic Composite Plated Steel Plate u.s. Patent 5,837,403. June 10, 1997 S. Kuwamura et al., assignors to Daimppon Ink and Chemicals Inc., and Nippon Steel Corp., Tokyo

An improved organic composite plated steel plate obtained by applying a thermo- setting resin to a chromate-coated alloy- plated steel plate and curing the thermoset- ting resin, wherein an aqueous vinyl- modified epoxy ester resin is used as the thermosetting resin.

116 METAL FINISHING • FEBRUARY 1998