Patents by Inventor David M. Buczek
David M. Buczek has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7106156Abstract: Superconducting cables and magnetic devices are disclosed.Type: GrantFiled: April 12, 2005Date of Patent: September 12, 2006Assignee: American Superconductor CorporationInventors: David M. Buczek, John D. Scudiere, Leslie G. Fritzemeier
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Patent number: 6943656Abstract: Superconducting cables and magnetic devices are disclosed.Type: GrantFiled: May 25, 2004Date of Patent: September 13, 2005Assignee: American Semiconductor CorporationInventors: David M. Buczek, John D. Scudiere, Leslie G. Fritzemeier
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Publication number: 20040235672Abstract: Superconducting cables and magnetic devices are disclosed.Type: ApplicationFiled: May 25, 2004Publication date: November 25, 2004Applicant: American Superconductor, a Delware corporationInventors: David M. Buczek, John D. Scudiere, Leslie G. Fritzemeier
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Patent number: 6784362Abstract: The invention features a superconducting ceramic conductor for use in a preselected fluid cryogen. The conductor includes a composite ceramic superconducting wire having an outer surface along its length and a sealing structure hermetically surrounding the outer surface to prevent the cryogen from infiltrating into the wire and degrading its superconducting properties. The sealing. structure includes a cured polymer layer encircling the outside surface of the wire.Type: GrantFiled: September 8, 2000Date of Patent: August 31, 2004Assignee: American Superconductor CorporationInventors: David M. Buczek, Marco Nassi
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Patent number: 6745059Abstract: Superconducting cables and magnetic devices are disclosed.Type: GrantFiled: November 28, 2001Date of Patent: June 1, 2004Assignee: American Superconductor CorporationInventors: David M. Buczek, John D. Scudiere, Leslie G. Fritzemeier
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Patent number: 6649280Abstract: A high performance superconducting ceramic article for use in a liquid cryogen bath is provided. It includes a superconducting ceramic tape having at least one surface vulnerable to cryogenic infiltration is sealed on each vulnerable surface to a non-porous metallic laminate, which also provides the desired support structure, in substantially impervious relation by a non-porous metallic bonding agent. This results in greater protection of the superconducting ceramic tape from cryogen infiltration, and permits greater thermal cycling of the superconductor during use without causing degradation of the tape's critical current carrying capacity.Type: GrantFiled: February 4, 2000Date of Patent: November 18, 2003Assignee: American Superconductor CorporationInventors: John D. Scudiere, David M. Buczek
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Publication number: 20030099870Abstract: Superconducting cables and magnetic devices are disclosed.Type: ApplicationFiled: November 28, 2001Publication date: May 29, 2003Inventors: David M. Buczek, John D. Scudiere, Leslie G. Fritzemeier
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Patent number: 6444917Abstract: The invention features a superconducting conductor for use in a preselected fluid cryogen including a composite ceramic superconducting wire having an outer surface along its length; and a sealing structure hermetically surrounding the outer surface to prevent the cryogen from infiltrating into the wire and degrading its superconducting properties, even under pressurized conditions. The superconducting conductor can be used in superconducting cabling and coil applications. The sealing structure can be formed by laminating metallic tapes to the wire, encircling at least one metallic sheet around the outer surface of the wire, welding a plurality of metallic sheets to one another to encircle the outer surface of the wire, or forming a polymer coating completely covering the outer surface of the wire.Type: GrantFiled: July 23, 1999Date of Patent: September 3, 2002Assignees: American Superconductor Corporation, Pirelli Cavi e Sistemi S.p.A.Inventors: John D. Scudiere, David M. Buczek, Steven Fleshler, Derek Patrick Daly, Richard E. Harnois, Stephen R. Norman, Paola Caracino, Marco Nassi, Sergio Spreafico
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Patent number: 6426320Abstract: A method for fabricating superconductor articles with an epitaxial layer is described. The method can be performed under conditions of relatively high pressure and low substrate surface temperature. The resulting epitaxial layers can demonstrate various advantageous features, including low pore density and/or inclusions with small average particle size diameter.Type: GrantFiled: December 29, 1999Date of Patent: July 30, 2002Assignee: American Superconductors CorporationInventors: Leslie G. Fritzemeier, David M. Buczek
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Patent number: 6230033Abstract: A superconducting ceramic includes a laminate and a superconducting ceramic tape joined to the laminate. The laminate and superconductor tape are joined such that the tape is under a compressive stress. The compressive stress is of a greater amount than compressive stress which results from differences in thermal expansion of the tape and the laminate. The greater compressive stress can be achieved by putting the laminate under a greater tension than the superconducting ceramic tape during joining of the superconducting ceramic tape to the laminate.Type: GrantFiled: September 23, 1999Date of Patent: May 8, 2001Assignee: American Superconductor CorporationInventors: John D. Scudiere, David M. Buczek, Gregory L. Snitchler, Paul J. Di Pietro
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Patent number: 6110606Abstract: A high performance superconducting ceramic article for use in a liquid cryogen bath is provided. It includes a superconducting ceramic tape having at least one surface vulnerable to cryogenic infiltration is sealed on each vulnerable surface to a non-porous metallic laminate, which also provides the desired support structure, in substantially impervious relation by a non-porous metallic bonding agent. This results in greater protection of the superconducting ceramic tape from cryogen infiltration, and permits greater thermal cycling of the superconductor during use without causing degradation of the tape's critical current carrying capacity.Type: GrantFiled: August 30, 1996Date of Patent: August 29, 2000Assignee: American Superconductor CorporationInventors: John D. Scudiere, David M. Buczek
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Patent number: 6027564Abstract: A method for fabricating composite articles with an epitaxial layer is described. The method can be performed under conditions of relatively high pressure and low substrate surface temperature. The resulting epitaxial layers can demonstrate various advantageous properties, such as low pore density and/or inclusions with small average particle size diameter.Type: GrantFiled: January 15, 1998Date of Patent: February 22, 2000Assignee: American Superconductor CorporationInventors: Leslie G. Fritzemeier, David M. Buczek
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Patent number: 6022832Abstract: A method for fabricating superconductor articles with an epitaxial layer is described. The method can be performed under conditions of relatively high pressure and low substrate surface temperature. The resulting epitaxial layers can demonstrate various advantageous features, including low pore density and/or inclusions with small average particle size diameter.Type: GrantFiled: January 15, 1998Date of Patent: February 8, 2000Assignee: American Superconductor CorporationInventors: Leslie G. Fritzemeier, David M. Buczek
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Patent number: 5987342Abstract: A superconducting ceramic includes a laminate and a superconducting ceramic tape joined to the laminate. The laminate and superconductor tape are joined such that the tape is under a compressive stress. The compressive stress is of a greater amount than the compressive stress which results from differences in thermal expansion of the tape and the laminate. The greater compressive stress can be achieved by putting the laminate under a greater tension than the superconducting ceramic tape during joining of the superconducting ceramic tape to the laminate.Type: GrantFiled: August 30, 1996Date of Patent: November 16, 1999Assignee: American Superconductor CorporationInventors: John D. Scudiere, David M. Buczek, Gregory L. Snitchler, Paul J. Di Pietro
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Patent number: 5801124Abstract: The invention provides a superconducting ceramic laminate including a superconducting tape mechanically coupled to, and compressively strained to 0.1% or more under a predetermined load by, at least one cladding tape. The material and thickness of the cladding tape or tapes are selected relative to the material and thickness of the superconducting tape to locate the neutral axis so that, under a predetermined heavy load, the maximum compressive strain on any superconducting portion of the superconducting tape is less than the critical compressive strain and the maximum tensile strain on any superconducting portion of the superconducting tape under a predetermined load is less than the critical tensile strain. By "heavy load" is meant a load on the laminate equivalent to a load on the unlaminated superconducting tape selected for the laminate including a surface bend strain on the unlaminated superconducting tape of at least 0.1%.Type: GrantFiled: August 30, 1996Date of Patent: September 1, 1998Assignee: American Superconductor CorporationInventors: Bruce B. Gamble, Gilbert N. Riley, Jr., John D. Scudiere, Michael D. Manlief, David M. Buczek, Gregory L. Snitchler