Abstract: This invention relates to a fixture for use in a physical vapor deposition coating operation which comprises a support structure 14 comprising a circular base member 10, a circular top member 11 opposite the circular base member 10, and a plurality of structural members 12 joining said top member 11 to said base member 10; a plurality of panel members 13 aligned in a vertical direction around the outer periphery of said support structure 14 forming a cylinder-like structure; said panel members 13 including a plurality of apertures for holding workpieces 19 and 35 to which a coating is to be applied; and said apertures positioned on said panel members 13 so that said workpieces 19 and 35 are aligned in a staggered vertical direction. This invention also relates to a method for simultaneously coating a plurality of workpieces 19 and 35, such as gas turbine compressor blades and vanes, with erosion resistant coatings using the fixture of this invention.
Type:
Grant
Filed:
June 5, 2006
Date of Patent:
November 23, 2010
Assignee:
Praxair S.T. Technology, Inc.
Inventors:
David Sharp, Albert Feuerstein, Scott Cain
Abstract: An aqueous phosphoric bonding solution consists essentially of phosphoric acid, a source of magnesium ions, and a leachable corrosion inhibitor. The bonding solution is stable with respect to inorganic metal particles, such as aluminum, which are admixed to the bonding solution for the preparation of a coating slurry. Metal parts coated with the coating compositions have very satisfactory properties such as heat and corrosion resistance.
Type:
Application
Filed:
August 2, 2010
Publication date:
November 18, 2010
Applicant:
PRAXAIR S.T. TECHNOLOGY, INC.
Inventors:
Mark F. Mosser, Kevin Eddinger, Eileen Fox, Thomas F. Lewis, III
Abstract: An aqueous phosphoric bonding solution consists essentially of phosphoric acid, a source of magnesium ions, and a leachable corrosion inhibitor. The bonding solution is stable with respect to inorganic metal particles, such as aluminum, which are admixed to the bonding solution for the preparation of a coating slurry. Metal parts coated with the coating compositions have very satisfactory properties such as heat and corrosion resistance.
Type:
Grant
Filed:
March 28, 2008
Date of Patent:
September 7, 2010
Assignee:
Praxair S.T. Technology, Inc.
Inventors:
Mark F. Mosser, Kevin Eddinger, Eileen Fox, Thomas F. Lewis, III
Abstract: A precious metal sputter target has a composition selected from the group consisting of platinum, palladium, rhodium, iridium, ruthenium, osmium and single-phase alloys thereof. The sputter target's grain structure is at least about 99 percent recrystallized and has a grain size of less than about 200 ?m for improving sputter uniformity. The cryogenic method for producing these sputter targets is also effective for improving sputter performance for silver an gold sputter targets.
Type:
Grant
Filed:
May 17, 2007
Date of Patent:
June 22, 2010
Assignee:
Praxair S.T. Technology, Inc
Inventors:
Andrew C. Perry, Paul S. Gilman, Wendell Stuber, Binu Mathew
Abstract: A method for aligning the sputter target onto a backing plate having a peripheral arcuate-shaped flange on its bonding surface to provide an aligned and uniform solder bonded interface; and the sputter target/backing plate assembly so produced.
Abstract: Foam for making pads and belts with controlled, reproducible microcellular structure and method of making such foam in a fast and efficient manner. Under constant pressure and temperature, a prepolymer is mixed with the nucleation surfactant in a tank in the presence of a frothing agent metered into the tank by way of a dip tube or sparge. The nitrogen gas is sheared into small bubbles and is drawn off from the headspace of the tank creating a continuous flow of nitrogen. The pressure of the tank may vary from any absolute pressure down to near complete vacuum, thereby all but eliminating the pressure requirement. The froth of the present invention has a more consistent cell structure and increased cell count.
Abstract: The present inventions relates to a process for the preparation of a PVC homopolymer solution containing PVC in concentration greater than 5 wt %, comprising adding solid PVC to an organic solvent containing a dissolving agent selected from phthalates, adipates, phosphates, sebacates and azelates, and stirring the same until a clear solution is obtained, a process for the manufacturing of the PVC sheet, comprising applying the PVC, homopolymer solution, and a PVC film, whenever manufactured by the process of the PVC sheet. The present invention provides a process for the preparation of the PVC homopolymer solution, the transparent solution which is stable and in which no precipitation or gel formation occurs for long periods of time, the PVC dissolving solution without applying any external heat, and the PVC sheet by efficient and inexpensive method.
Abstract: A method for the enhanced melt-textured growth of superconducting crystals is disclosed for a sample having a first material capable of exhibiting superconducting properties. The sample is heated above a peritectic temperature of the first material, cooled below the peritectic temperature, and is subsequently subjected to a plurality of temperature spikes in which the sample is rapidly reheated above the peritectic temperature and recooled below the peritectic temperature to produce a superconducting crystalline structure substantially free of secondary nucleations. The resulting crystal is a superconducting crystalline structure comprising a plurality of bands formed in succession around a seed material. Each band has a non-uniform microstructure from an inner portion to an outer portion of the band.
Abstract: Disclosed herein are compositions comprising a polyene compound and an additive selected from the group consisting of antioxidant, surfactant, oil, wax, solvent, and a combination thereof. Also disclosed herein are methods of temporarily marking a surface comprising marking the surface with a composition as disclosed herein, where the marking has a color intensity; and exposing the surface to ambient light and ambient air, whereby the color intensity of the marking decreases over a period of time. Further, disclosed herein are markers comprising a composition as disclosed herein.
Abstract: The method manufactures high-purity ferromagnetic sputter targets by cryogenic working the sputter target blank at a temperature below at least ?50° C. to impart at least about 5 percent strain into the sputter target blank to increase PTF uniformity of the target blank. The sputter target blank is a nonferrous metal selected from the group consisting of cobalt and nickel; and the nonferrous metal has a purity of at least about 99.99 weight percent. Finally, fabricating the sputter target blank forms a sputter target having an improved PTF uniformity arising from the cryogenic working.
Type:
Grant
Filed:
August 11, 2003
Date of Patent:
October 27, 2009
Assignee:
Praxair S.T. Technology, Inc.
Inventors:
Andrew C. Perry, Holger J. Koenigsmann, David E. Dombrowski, Thomas J. Hunt
Abstract: Systems and methods for servicing a user seeking a service over a computer network. In one embodiment the user visits a website of an administrative processing system which performs administrative processing for a plurality of service providers, including service provider(s) which will provide the service(s) to the user. In one embodiment, the administrative processing includes an interactive chat-like interview with the user. In one embodiment the administrative processing system is paid by the user and the payment is shared with the provider(s) who serviced the user.
Abstract: A method for aligning the sputter target onto a backing plate having a peripheral arcuate-shaped flange on its bonding surface to provide an aligned and uniform solder bonded interface; and the sputter target/backing plate assembly so produced.
Abstract: The invention is a coating and a method for applying coatings to fiber reinforced composite materials. A first polymeric layer, free of fibers and particulate, coats a fiber reinforced polymer substrate. The first layer joins the fiber reinforced polymer substrate to a second polymeric layer. The second polymeric layer contains a polymeric matrix and a particulate within the polymeric matrix. Finally, at least one thermally sprayed material coats the second polymeric layer to form an adherent multi-layer coating attached to the fiber reinforced.
Type:
Grant
Filed:
August 18, 2005
Date of Patent:
September 2, 2008
Assignee:
Praxair S. T. Technology, Inc.
Inventors:
Richard Kent Passman, David A. McPherson
Abstract: A metal surface infused composite object made by thermal spraying a metal material onto a release agent coated pattern, followed by vacuum infusion at least a portion of the metal material layer with a resin and then separating the composite infused metal object from the pattern.
Abstract: A precious metal sputter target has a composition selected from the group consisting of platinum, palladium, rhodium, iridium, ruthenium, osmium and single-phase alloys thereof. The sputter target's grain structure is at least about 99 percent recrystallized and has a grain size of less than about 200 ?m for improving sputter uniformity. The cryogenic method for producing these sputter targets is also effective for improving sputter performance for silver and gold sputter targets.
Type:
Grant
Filed:
August 8, 2002
Date of Patent:
June 26, 2007
Assignee:
Praxair S.T. Technology, Inc.
Inventors:
Andrew C. Perry, Paul S. Gilman, Wendell Stuber, Binu Mathew
Abstract: A method for the enhanced melt-textured growth of superconducting crystals is disclosed for a sample having a first material capable of exhibiting superconducting properties. The sample is heated above a peritectic temperature of the first material, cooled below the peritectic temperature, and is subsequently subjected to a plurality of temperature spikes in which the sample is rapidly reheated above the peritectic temperature and recooled below the peritectic temperature to produce a superconducting crystalline structure substantially free of secondary nucleations. The resulting crystal is a superconducting crystalline structure comprising a plurality of bands formed in succession around a seed material. Each band has a non-uniform microstructure from an inner portion to an outer portion of the band.
Abstract: This invention is directed as “a device of hard disk shock-resistance”, mainly consists of an outer frame, an inner frame, and multiple absorbers. With multiple assembly and tool holes arranged in appropriate position, the absorbers are snapped in-between the assembly holes of the outer and inner frames to create a buffer area which protects hard disk from breaking down in severe shocking environments, while it is still convenient to mount and dismount the hard disk with easy unit assembly.
Abstract: The invention generally relates to a system and method for integrated gas delivery and leak detection to one or more applications. The system includes at least one application site, a process conduit extending from a process gas source site to the application site, a first and second process flow control at the process conduit, and a first pressure sensor. Also included in the system is a microprocessor that is in electronic communication with the flow controls and the first pressure sensor, wherein the microprocessor is programmed to respond to an application standby request by performing a pressure decay test, including closing the second process flow control and pressurizing a portion of the system by opening the first process flow control.
Abstract: The sputter target includes a tantalum body having tantalum grains formed from consolidating tantalum powder and a sputter face. The sputter face has an atom transport direction for transporting tantalum atoms away from the sputter face for coating a substrate. The tantalum grains have at least a 40 percent (222) direction orientation ratio and less than a 15 percent (110) direction orientation ratio in an atom transport direction away from the sputter face for increasing sputtering uniformity, the tantalum body being free of (200)–(222) direction banding detectable by Electron Back-Scattering Diffraction and wherein the sputter target has a purity of at least 99.99 (%) percent.