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Применить Всего найдено 7. Отображено 7.
16-05-2017 дата публикации

Multi-aperture electronically scanned arrays and methods of use

Номер: US0009653804B2
Автор: James A. Pruett, James R. Toplicar, Paul R. Emery, Brian L. Ball, John D. Carpenter, PRUETT JAMES A, TOPLICAR JAMES R, EMERY PAUL R, BALL BRIAN L, CARPENTER JOHN D, Pruett James A., Toplicar James R., Emery Paul R., Ball Brian L., Carpenter John D.
Принадлежит: Raytheon Company, PRUETT JAMES A, TOPLICAR JAMES R, EMERY PAUL R, BALL BRIAN L, CARPENTER JOHN D, RAYTHEON CO, Pruett James A., Toplicar James R., Emery Paul R., Ball Brian L., Carpenter John D.

An electronically scanned array (ESA) system comprises a first ESA assembly including a first antenna system coupled to a first plurality of transmit/receive modules and a second ESA assembly including a second antenna system coupled to a second plurality of transmit/receive modules. The ESA system also includes a manifold system coupled to the first and second ESA assemblies. The manifold system including an RF signal processing system for processing signals received from the first and second ESA assemblies.

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Номер записи: 1
04-10-2012 дата публикации

ELECTROCOMPOSITE COATINGS FOR HARD CHROME REPLACEMENT

Номер: US20120247962A1
Автор: Carpenter John D., Datta Amitava, Reath Robert Z.
Принадлежит: USC, LLC

The invention provides a method and system for electrolytically coating an article. The method includes providing an article to be coated and disposing the article in an electrolytic cell. The cell includes an anode, a cathode in operable communication with the article, and an electrolyte bath. During electrolysis, the electrolyte bath comprises cobalt ions, phosphorous acid, and tribological particles selected from the group consisting of refractory materials, solid lubricants and mixtures thereof dispersed therein. The method further includes applying steady direct electric current through the anode, the electrolyte bath and the cathode to coat the article with cobalt, phosphorous and the tribological particles. An improved composition of matter is also provided that may be used as a coating, or the composition may be electroformed on a mandrel to form an article made from the composition of matter. 1. A coating for improving the fatigue performance of an article , said coating comprising:a) a cobalt material matrix;b) said cobalt material matrix consisting of a cobalt phosphorous alloy, wherein the phosphorous in the final coating is present in an amount between about 7 weight percent and about 12 weight percent.2. The coating of claim 1 , wherein the cobalt material matrix is substantially free of tribological particles claim 1 , and wherein the phosphorous in the final coating is present in an amount between about 10 weight percent and about 12 weight percent.3. The coating of claim 1 , wherein the coating further includes a plurality of tribological particles throughout the cobalt material matrix claim 1 , the tribological particles having an average particle size in the range of from about 2 to 10 microns claim 1 , and wherein the phosphorous in the final coating is present in an amount between about 7 weight percent and about 8 weight percent.4. The coating of claim 1 , wherein the coating has an as-plated hardness of about 650-700 VHN and has a fatigue life ...

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Номер записи: 2
22-05-2014 дата публикации

Cylinder Bore Coating System

Номер: US20140137831A1
Автор: Carpenter John D., Datta Amitava, Reath Robert Z.
Принадлежит: RZR Corporation

Embodiments of the present innovation relate to a cylinder bore coating system which simultaneously combines both friction and wear properties to enhance engine efficiency and operating life. The cylinder bore coating system includes a relatively thin top layer, such as diamond like carbon layer (DLC), disposed over a thicker, relatively hard and high modulus coating (i.e., an under coating). This combination of layers provides both low friction as well as low wear characteristics to the engine bore, relative to conventional engine bore coatings. 1. An engine cylinder assembly , comprising:an engine cylinder having a cylinder wall that defines a cylinder bore, a material of the engine cylinder having a first modulus of elasticity and a first hardness;a first layer disposed on the cylinder wall, the first layer having a second modulus of elasticity and a second hardness, the second modulus of elasticity being greater than the first modulus of elasticity of the engine cylinder and the second hardness being greater than the first hardness of the engine cylinder; anda topcoat layer disposed on the first layer, the topcoat layer configured to minimize friction between the engine cylinder assembly and a piston ring disposed within the cylinder bore.2. The engine cylinder assembly of claim 1 , wherein the topcoat layer comprises a coefficient of friction of about 0.085.3. The engine cylinder assembly of claim 1 , wherein the topcoat layer comprises a Physical Vapor Deposition (PVD) layer.4. The engine cylinder assembly of claim 3 , wherein the PVD layer comprises a diamond-like carbon material.5. The engine cylinder assembly of claim 3 , wherein the PVD layer is selected from the group consisting of TiN claim 3 , CrN claim 3 , TiAlNi claim 3 , CrO claim 3 , and ZrO.6. The engine cylinder assembly of claim 1 , wherein the first layer comprises an alloy base electrocomposite coating containing ceramic particles.7. The engine cylinder assembly of claim 6 , wherein the ceramic ...

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Номер записи: 3
12-03-2015 дата публикации

ELECTROCOMPOSITE COATINGS FOR HARD CHROME REPLACEMENT

Номер: US20150068905A1
Автор: Carpenter John D., Datta Amitava, Reath Robert Z.
Принадлежит:

The invention provides a method and system for electrolytically coating an article. The method includes providing an article to be coated and disposing the article in an electrolytic cell. The cell includes an anode, a cathode in operable communication with the article, and an electrolyte bath. During electrolysis, the electrolyte bath comprises cobalt ions, phosphorous acid, and tribological particles selected from the group consisting of refractory materials, solid lubricants and mixtures thereof dispersed therein. The method further includes applying steady direct electric current through the anode, the electrolyte bath and the cathode to coat the article with cobalt, phosphorous and the tribological particles. An improved composition of matter is also provided that may be used as a coating, or the composition may be electroformed on a mandrel to form an article made from the composition of matter. 1. A coating for improving the fatigue performance of an article , said coating comprising:a) a cobalt material matrix;b) said cobalt material matrix consisting of a cobalt phosphorous alloy, wherein the phosphorous in the final coating is present in an amount between about 7 weight percent and about 12 weight percent.2. The coating of claim 1 , wherein the cobalt material matrix is substantially free of tribological particles claim 1 , and wherein the phosphorous in the final coating is present in an amount between about 10 weight percent and about 12 weight percent.3. The coating of claim 1 , wherein the coating further includes a plurality of tribological particles throughout the cobalt material matrix claim 1 , the tribological particles having an average particle size in the range of from about 2 to 10 microns claim 1 , and wherein the phosphorous in the final coating is present in an amount between about 7 weight percent and about 8 weight percent.4. The coating of claim 1 , wherein the coating has an as-plated hardness of about 650-700 VHN and has a fatigue life ...

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Номер записи: 4
20-06-2019 дата публикации

ELECTROCOMPOSITE COATINGS FOR HARD CHROME REPLACEMENT

Номер: US20190186034A1
Автор: Carpenter John D., Datta Amitava, Reath Robert Z.
Принадлежит:

The invention provides a method and system for electrolytically coating an article. The method includes providing an article to be coated and disposing the article in an electrolytic cell. The cell includes an anode, a cathode in operable communication with the article, and an electrolyte bath. During electrolysis, the electrolyte bath comprises cobalt ions, phosphorous acid, and tribological particles selected from the group consisting of refractory materials, solid lubricants and mixtures thereof dispersed therein. The method further includes applying steady direct electric current through the anode, the electrolyte bath and the cathode to coat the article with cobalt, phosphorous and the tribological particles. An improved composition of matter is also provided that may be used as a coating, or the composition may be electroformed on a mandrel to form an article made from the composition of matter. 1. A coating for improving the fatigue performance of an article , said coating comprising:a) a cobalt material matrix;b) said cobalt material matrix consisting of a cobalt phosphorous alloy, wherein the phosphorous in the final coating is present in an amount between about 7 weight percent and about 12 weight percent.2. The coating of claim 1 , wherein the cobalt material matrix is substantially free of tribological particles claim 1 , and wherein the phosphorous in the final coating is present in an amount between about 10 weight percent and about 12 weight percent.3. The coating of claim 1 , wherein the coating further includes a plurality of tribological particles throughout the cobalt material matrix claim 1 , the tribological particles having an average particle size in the range of from about 2 to 10 microns claim 1 , and wherein the phosphorous in the final coating is present in an amount between about 7 weight percent and about 8 weight percent.4. The coating of claim 1 , wherein the coating has an as-plated hardness of about 650-700 VHN and has a fatigue life ...

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Номер записи: 5
07-05-2009 дата публикации

Electrocomposite coatings for hard chrome replacement

Номер: US20090114543A1
Автор: Amitava Datta, John D. Carpenter
Принадлежит: Usc Inc

The invention provides a method and system for electrolytically coating an article. The method includes providing an article to be coated and disposing the article in an electrolytic cell. The cell includes an anode, a cathode in operable communication with the article, and an electrolyte bath. During electrolysis, the electrolyte bath comprises cobalt ions, phosphorous acid, and tribological particles selected from the group consisting of refractory materials, solid lubricants and mixtures thereof dispersed therein. The method further includes applying steady direct electric current through the anode, the electrolyte bath and the cathode to coat the article with cobalt, phosphorous and the tribological particles. An improved composition of matter is also provided that may be used as a coating, or the composition may be electroformed on a mandrel to form an article made from the composition of matter.

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Номер записи: 6
06-10-2011 дата публикации

Electrocomposite coatings for hard chrome replacement

Номер: US20110240479A1
Автор: Amitava Datta, John D. Carpenter, Robert Z. Reath
Принадлежит: Individual

The invention provides a method and system for electrolytically coating an article. The method includes providing an article to be coated and disposing the article in an electrolytic cell. The cell includes an anode, a cathode in operable communication with the article, and an electrolyte bath. During electrolysis, the electrolyte bath comprises cobalt ions, phosphorous acid, and tribological particles selected from the group consisting of refractory materials, solid lubricants and mixtures thereof dispersed therein. The method further includes applying steady direct electric current through the anode, the electrolyte bath and the cathode to coat the article with cobalt, phosphorous and the tribological particles. An improved composition of matter is also provided that may be used as a coating, or the composition may be electroformed on a mandrel to form an article made from the composition of matter.

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Номер записи: 7