Patents by Inventor Ronald D. Parrella
Ronald D. Parrella 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).
-
Patent number: 8496131Abstract: A cap 80 for sealing a container having a closure assembly with lug members on the container for sealing with corresponding lugs on the cap 80 has a top panel 84 and a circumferential side wall panel 82, has a top panel 84 and a circumferential side wall panel 82. The top panel 84 is positioned about a longitudinal axis 50 and extends radially outwardly therefrom. The circumferential side wall panel 82 is integral with an outer peripheral edge of the top panel 84 and has first, second, and third segments 90, 92, 94. The first segment 90 extends downwardly. The second segment 92 extends radially outwardly at a first angle to the first segment 90. The third segment 94 extends downwardly from the second segment 94 at a second angle to the second segment 92.Type: GrantFiled: October 20, 2009Date of Patent: July 30, 2013Assignee: Rexam Beverage Can CompanyInventors: Randall G. Forrest, Timothy L. Turner, Michael R. Gogola, V. Steven Jackson, Ronald D. Parrella
-
Publication number: 20110278255Abstract: A cap 80 for sealing a container having a lug-type closure assembly is described. The cap 80 has a top panel 84 and a circumferential side wall panel 82. The top panel 84 is positioned about a longitudinal axis 50 and extends radially outwardly therefrom. The circumferential side wall panel 82 is integral with an outer peripheral edge of the top panel 84 and has first, second, and third segments 90, 92, 94. The first segment 90 extends downwardly. The second segment 92 extends radially outwardly at a first angle to the first segment 90. The third segment 94 extends downwardly from the second segment 94 at a second angle to the second segment 92.Type: ApplicationFiled: October 20, 2009Publication date: November 17, 2011Applicant: REXAM BEVERAGE CAN COMPANYInventors: Randall G. Forrest, Timothy L. Turner, Michael R. Gogola, V. Steven Jackson, Ronald D. Parrella
-
Patent number: 6894006Abstract: A method for reducing the concentration of non-superconducting phases during the heat treatment of Pb doped Ag/Bi-2223 composites having Bi-2223 and Bi-2212 superconducting phases is disclosed. A Pb doped Ag/Bi-2223 composite having Bi-2223 and Bi-2212 superconducting phases is heated in an atmosphere having an oxygen partial pressure not less than about 0.04 atmospheres and the temperature is maintained at the lower of a non-superconducting phase take-off temperature and the Bi-2223 superconducting phase grain growth take-off temperature. The oxygen partial pressure is varied and the temperature is varied between about 815° C. and about 835° C. to produce not less than 80 percent conversion to Pb doped Bi-2223 superconducting phase and not greater than about 20 volume percent non-superconducting phases. The oxygen partial pressure is preferably varied between about 0.04 and about 0.21 atmospheres. A product by the method is disclosed.Type: GrantFiled: July 21, 2000Date of Patent: May 17, 2005Assignees: University of Chicago, American Superconductor Corp.Inventors: Victor A. Maroni, Nazarali N. Merchant, Ronald D. Parrella
-
Publication number: 20030032560Abstract: A multifilamentary superconducting composite article includes a plurality of oxide superconducting filaments in a ductile metal matrix arranged about a central core, and a region of high resistivity embedded within and adherent to the metal matrix and substantially surrounding each oxide superconducting filament. The high resistivity region is perforated and the perforation is occupied by a material having a bulk material resistivity greater than 0.4 &mgr;-cm. The article demonstrates a filament to filament resistance greater than 1×10−6 ohm-cm at T>Tc, where resistance is the four-point transport resistance between filaments multiplied by the measured sample length The ac power loss in a field perpendicular to the strand surface or in any other orientation is less than 2.5 mW/A-m at greater than 10 mT (RMS ac field, 30-300 Hz), as measured by magnetic methods without transport current. Methods of manufacture are provided.Type: ApplicationFiled: September 17, 2001Publication date: February 13, 2003Inventors: Alexander Otto, Jeffrey D. Schreiber, Ronald D. Parrella, Jennifer H. Garrant
-
Patent number: 6436875Abstract: The invention features high performing composite superconducting oxide articles that can be produced from OPIT precursors substantially without poisoning the superconductor. In general, the superconducting oxide is substantially surrounded by a matrix material. The matrix material contains a first constraining material including a noble metal and a second metal. The second metal is a relatively reducing metal which lowers the overall oxygen activity of the matrix material and the article at a precursor process point prior to oxidation of the second metal. The second metal is substantially converted to a metal oxide dispersed in the matrix during or prior to a first phase conversion heat treatment but after formation of the composite, creating an ODS matrix.Type: GrantFiled: March 22, 2001Date of Patent: August 20, 2002Assignee: American Superconductor CorporationInventors: Lawrence J. Masur, Donald R. Parker, Eric R. Podtburg, Peter R. Roberts, Ronald D. Parrella, Gilbert N. Riley, Jr., Steven Hancock
-
Publication number: 20020111277Abstract: A method of making an oxide superconductor article includes providing an oxide filament comprising a textured oxide superconductor precursor having an effective oxide flow stress, (&sgr;c, in a silver-based matrix, and converting the textured oxide superconductor precursor into an oxide superconductor. During precursor conversion, a compression stress is applied to the oxide filament which is greater than or equal to the oxide flow stress (&sgr;c), the silver-based matrix having a flow stress, &sgr;s, whereby &sgr;s>&sgr;c under conditions of phase conversion so that material flow between the silver-based matrix and the oxide filament is substantially avoided.Type: ApplicationFiled: September 17, 2001Publication date: August 15, 2002Inventors: Alexander Otto, Ronald D. Parrella
-
Publication number: 20020019316Abstract: The present invention provides a (Bi,Pb)SCCO-2223 oxide superconductor composite which exhibits improved critical current density and critical current density retention in the presence of magnetic fields. Retention of critical current density in 0.1 T fields (77 K, ⊥ ab plane) of greater than 35% is disclosed. Significant improvements in oxide superconductor wire current carrying capacity in a magnetic field are obtained by subjecting the oxide superconductor composite to a post-processing heat treatment which reduces the amount of lead in the (Bi,Pb)SCCO-2223 phase and forms a lead-rich non-superconducting phase. The heat treatment is carried out under conditions which localize the lead-rich phase at high energy sites in the composite.Type: ApplicationFiled: February 12, 2001Publication date: February 14, 2002Inventors: Qi Li, William J. Michels, Ronald D. Parrella, Gilbert N. Riley, Mark D. Teplitsky, Steven Fleshler
-
Publication number: 20020004460Abstract: The invention features high performing composite superconducting oxide articles that can be produced from OPIT precursors substantially without poisoning the superconductor. In general, the superconducting oxide is substantially surrounded by a matrix material. The matrix material contains a first constraining material including a noble metal and a second metal. The second metal is a relatively reducing metal which lowers the overall oxygen activity of the matrix material and the article at a precursor process point prior to oxidation of the second metal. The second metal is substantially converted to a metal oxide dispersed in the matrix during or prior to a first phase conversion heat treatment but after formation of the composite, creating an ODS matrix.Type: ApplicationFiled: March 22, 2001Publication date: January 10, 2002Applicant: American Superconductor Corporation, a Delaware corporationInventors: Lawrence J. Masur, Donald R. Parker, Eric R. Podtburg, Peter R. Roberts, Ronald D. Parrella, Gilbert N. Riley, Steven Hancock
-
Patent number: 6305070Abstract: The invention features high performing composite superconducting oxide articles that can be produced from OPIT precursors substantially without poisoning the superconductor. In general, the superconducting oxide is substantially surrounded by a matrix material. The matrix material contains a first constraining material including a noble metal and a second metal. The second metal is a relatively reducing metal which lowers the overall oxygen activity of the matrix material and the article at a precursor process point prior to oxidation of the second metal. The second metal is substantially converted to a metal oxide dispersed in the matrix during or prior to a first phase conversion heat treatment but after formation of the composite, creating an ODS matrix.Type: GrantFiled: October 15, 1996Date of Patent: October 23, 2001Assignee: American Superconductor CorporationInventors: Lawrence J. Masur, Donald R. Parker, Eric R. Podtburg, Peter R. Roberts, Ronald D. Parrella, Gilbert N. Riley, Jr., Steven Hancock
-
Patent number: 6188920Abstract: The present invention provides a (Bi,Pb)SCCO-2223 oxide superconductor composite which exhibits improved critical current density and critical current density retention in the presence of magnetic fields. Retention of critical current density in 0.1 T fields (77 K, ⊥ ab plane) of greater than 35% is disclosed. Significant improvements in oxide superconductor wire current carrying capacity in a magnetic field are obtained by subjecting the oxide superconductor composite to a post-processing heat treatment which reduces the amount of lead in the (Bi,Pb)SCCO-2223 phase and forms a lead-rich non-superconducting phase. The heat treatment is carried out under conditions which localize the lead-rich phase at high energy sites in the composite.Type: GrantFiled: August 21, 1998Date of Patent: February 13, 2001Assignee: American Superconductor CorporationInventors: Qi Li, William J. Michels, Ronald D. Parrella, Gilbert N. Riley, Jr., Mark D. Teplitsky, Steven Fleshler
-
Patent number: 6069116Abstract: A novel process of the production and processing of high quality, high T.sub.c BSCCO or (Bi,Pb)SCCO superconductors starts with fabrication of a forming a bundle including a plurality of billets, each billet containing at least one filament comprising a dominant amount of an tetragonal BSCCO phase with selected intermediate phases, and substantially surrounded by a constraining metal. The bundle is thermomechanically consolidated to form a multifilamentary precursor article by applying pressure and heat to the bundle under conditions cooperatively selected to cause interdiffusion of said constraining metal at the interfaces between said metal and said filaments and substantially complete elimination of voids in said bundle, and the consolidation step is completed before any high strain longitudinal deformation is performed on the bundle.Type: GrantFiled: September 10, 1997Date of Patent: May 30, 2000Assignee: American Superconductor Corp.Inventors: Qi Li, Gilbert N. Riley, Jr., Lawrence J. Masur, Eric R. Podtburg, Ronald D. Parrella, Martin W. Rupich, Donald R. Parker, William L. Carter, William J. Rosati, Mark D. Teplitsky
-
Patent number: 5798318Abstract: The present invention provides a (Bi,Pb)SCCO-2223 oxide superconductor composite which exhibits improved critical current density and critical current density retention in the presence of magnetic fields. Retention of critical current density in 0.1 T fields (77 K, .perp. ab plane) of greater than 35% is disclosed. Significant improvements in oxide superconductor wire current carrying capacity in a magnetic field are obtained by subjecting the oxide superconductor composite to a post-processing heat treatment which reduces the amount of lead in the (Bi,Pb)SCCO-2223 phase and forms a lead-rich non-superconducting phase. The heat treatment is carried out under conditions which localize the lead-rich phase at high energy sites in the composite.Type: GrantFiled: May 21, 1996Date of Patent: August 25, 1998Assignee: American Superconductor Corp.Inventors: Qi Li, William J. Michels, Ronald D. Parrella, Gilbert N. Riley, Jr., Mark D. Teplitsky, Steven Fleshler