Patents by Inventor Michael James Weimer

Michael James Weimer 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: 10597756
    Abstract: Gamma titanium aluminide intermetallic compositions (gamma TiAl intermetallics) based on the TiAl (gamma) intermetallic compound. The gamma TiAl intermetallics contain chromium and niobium, as well as controlled amounts of carbon that achieve a desirable balance in room temperature mechanical properties and high temperature creep capabilities at temperatures approaching and possibly exceeding 1600° F. (about 870° C.).
    Type: Grant
    Filed: April 11, 2012
    Date of Patent: March 24, 2020
    Assignee: General Electric Company
    Inventors: Michael James Weimer, Bernard Patrick Bewlay, Michael Francis Xavier Gigliotti, Jr., Thomas Joseph Kelly
  • Publication number: 20190071363
    Abstract: The present disclosure relates to a method of fabricating a ceramic composite components. The method may include providing at least a first layer of reinforcing fiber material which may be a pre-impregnated fiber. An additively manufactured component may be provided on or near the first layer. A second layer of reinforcing fiber, which may be a pre-impregnated fiber may be formed on top the additively manufactured component. A precursor is densified to consolidates at least the first and second layer into a densified composite, wherein the additively manufactured material defines at least one cooling passage in the densified composite component.
    Type: Application
    Filed: September 6, 2017
    Publication date: March 7, 2019
    Inventors: Tao LI, Timothy P. COONS, Xi YANG, Michael James WEIMER
  • Publication number: 20180245194
    Abstract: An article includes a substrate comprising a precipitate-strengthened alloy and a coating disposed over the substrate. The alloy comprises a) a population of gamma-prime precipitates, the population having a multimodal size distribution with at least one mode corresponding to a size of less than about 100 nanometers; or b) a population of gamma-double-prime precipitates having a median size less than about 300 nanometers. The coating comprises at least two elements, and further comprises a plurality of prior particles. At least a portion of the coating is substantially free of rapid solidification artifacts. Methods for fabricating the article and for processing powder useful for fabricating the article are also provided.
    Type: Application
    Filed: April 27, 2018
    Publication date: August 30, 2018
    Inventors: Andrew Joseph Detor, Leonardo Ajdelsztajn, Thomas Michael Bigelow, Richard Didomizio, Andrew William Emge, James Anthony Ruud, Michael James Weimer
  • Patent number: 10017844
    Abstract: An article includes a substrate comprising a precipitate-strengthened alloy and a coating disposed over the substrate. The alloy comprises a) a population of gamma-prime precipitates, the population having a multimodal size distribution with at least one mode corresponding to a size of less than about 100 nanometers; or b) a population of gamma-double-prime precipitates having a median size less than about 300 nanometers. The coating comprises at least two elements, and further comprises a plurality of prior particles. At least a portion of the coating is substantially free of rapid solidification artifacts. Methods for fabricating the article and for processing powder useful for fabricating the article are also provided.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: July 10, 2018
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Andrew Joseph Detor, Leonardo Ajdelsztajn, Thomas Michael Bigelow, Richard Didomizio, Andrew William Emge, James Anthony Ruud, Michael James Weimer
  • Patent number: 9931815
    Abstract: Coatings for substrates, such as superalloy substrates, are provided. The coating can include: 15 wt % to 45 wt % cobalt; 20 wt % to 40 wt % chromium; 2 wt % to 15 wt % aluminum; 0.1 wt % to 1 wt % yttrium; and nickel. The coatings may include nickel, cobalt, chromium and aluminum, and other optional additives to improve oxidation and corrosion resistance of the substrate without significant debit to its mechanical properties.
    Type: Grant
    Filed: March 12, 2014
    Date of Patent: April 3, 2018
    Assignee: General Electric Company
    Inventors: David Paul Mourer, Leonardo Ajdelsztajn, Kenneth Rees Bain, Andrew Joseph Detor, Andrew William Emge, James Anthony Ruud, Michael James Weimer
  • Publication number: 20170175244
    Abstract: An article includes a substrate comprising a precipitate-strengthened alloy and a coating disposed over the substrate. The alloy comprises a) a population of gamma-prime precipitates, the population having a multimodal size distribution with at least one mode corresponding to a size of less than about 100 nanometers; or b) a population of gamma-double-prime precipitates having a median size less than about 300 nanometers. The coating comprises at least two elements, and further comprises a plurality of prior particles. At least a portion of the coating is substantially free of rapid solidification artifacts. Methods for fabricating the article and for processing powder useful for fabricating the article are also provided.
    Type: Application
    Filed: December 18, 2015
    Publication date: June 22, 2017
    Inventors: Andrew Joseph Detor, Leonardo Ajdelsztajn, Thomas Michael Bigelow, Richard Didomizio, Andrew William Emge, James Anthony Ruud, Michael James Weimer
  • Patent number: 9592548
    Abstract: The disclosure relates generally to mold compositions and methods of molding and the articles so molded. More specifically, the disclosure relates to mold compositions, intrinsic facecoat compositions, and methods for casting titanium-containing articles, and the titanium-containing articles so molded, where the mold comprises calcium hexaluminate.
    Type: Grant
    Filed: January 29, 2013
    Date of Patent: March 14, 2017
    Assignee: General Electric Company
    Inventors: Bernard Patrick Bewlay, Michael James Weimer, Stephen Francis Bancheri, Joan McKiever, Brian Michael Ellis
  • Publication number: 20160031186
    Abstract: Coatings for substrates, such as superalloy substrates, are provided. The coating can include: 15 wt % to 45 wt % cobalt; 20 wt % to 40 wt % chromium; 2 wt % to 15 wt % aluminum; 0.1 wt % to 1 wt % yttrium; and nickel. The coatings may include nickel, cobalt, chromium and aluminum, and other optional additives to improve oxidation and corrosion resistance of the substrate without significant debit to its mechanical properties.
    Type: Application
    Filed: March 12, 2014
    Publication date: February 4, 2016
    Inventors: David Paul MOURER, Leonardo AJDELSZTAJN, Kenneth Rees BAIN, Andrew Joseph DETOR, Andrew William EMGE, James Anthony RUUD, Michael James WEIMER
  • Patent number: 9186719
    Abstract: A titanium-containing article casting mold composition includes calcium aluminate and an X-ray or Neutron-ray detectable element. A method for detecting sub-surface ceramic inclusions in a titanium or titanium alloy casting includes combining calcium aluminate, an element more radiographically dense than the calcium aluminate, and a liquid to form a slurry; forming a mold having the calcium aluminate and the radiographically dense element from the slurry; introducing a titanium aluminide-containing metal to the radiographically dense element-bearing mold; solidifying the titanium aluminide-containing metal to form an article in the mold; removing the solidified titanium aluminide-containing metal article from said mold; subjecting the solidified titanium aluminide-containing article to radiographic inspection to provide a radiograph; and examining the radiograph for the presence of the radiographically dense element on or in the article.
    Type: Grant
    Filed: November 12, 2013
    Date of Patent: November 17, 2015
    Assignee: General Electric Company
    Inventors: Bernard Patrick Bewlay, Michael James Weimer, Joan McKiever, Brian Michael Ellis
  • Publication number: 20140209268
    Abstract: The disclosure relates generally to mold compositions and methods of molding and the articles so molded. More specifically, the disclosure relates to mold compositions, intrinsic facecoat compositions, and methods for casting titanium-containing articles, and the titanium-containing articles so molded, where the mold comprises calcium hexaluminate.
    Type: Application
    Filed: January 29, 2013
    Publication date: July 31, 2014
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Bernard Patrick BEWLAY, Michael James WEIMER, Stephen Francis BANCHERI, Joan MCKIEVER, Brian Michael ELLIS
  • Publication number: 20140076512
    Abstract: The present disclosure relates to a titanium-containing article casting mold composition comprising calcium aluminate and an X-ray or Neutron-ray detectable element. Furthermore, present embodiments teach a method for detecting sub-surface ceramic inclusions in a titanium or titanium alloy casting by combining calcium aluminate, an element more radiographically dense than the calcium aluminate, and a liquid to form a slurry; forming a mold having the calcium aluminate and the radiographically dense element from the slurry; introducing a titanium aluminide-containing metal to the radiographically dense element-bearing mold; solidifying said titanium aluminide-containing metal to form an article in the mold; removing the solidified titanium aluminide-containing metal article from said mold; subjecting the solidified titanium aluminide-containing article to radiographic inspection to provide a radiograph; and examining said radiograph for the presence of the radiographically dense element on or in the article.
    Type: Application
    Filed: November 12, 2013
    Publication date: March 20, 2014
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Bernard Patrick Bewlay, Michael James Weimer, Joan K. McKiever, Brian Michael Ellis
  • Publication number: 20130248061
    Abstract: Methods of processing compositions containing titanium and aluminum, especially titanium aluminide intermetallic compositions (TiAl intermetallics) based on the TiAl (gamma) intermetallic compound. The methods entail processing steps that include a hot isostatic pressing (HIP) cycle and a heat treatment cycle that can be performed in a single vessel. TiAl intermetallic compositions processed in this manner preferably exhibit a duplex microstructure containing equiaxed and lamellar morphologies.
    Type: Application
    Filed: April 30, 2012
    Publication date: September 26, 2013
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Thomas Joseph Kelly, Bernard Patrick Bewlay, Michael James Weimer, Richard Kenneth Whitacre
  • Publication number: 20130251537
    Abstract: Gamma titanium aluminide intermetallic compositions (gamma TiAl intermetallics) based on the TiAl (gamma) intermetallic compound. The gamma TiAl intermetallics contain chromium and niobium, as well as controlled amounts of carbon that achieve a desirable balance in room temperature mechanical properties and high temperature creep capabilities at temperatures approaching and possibly exceeding 1600° F. (about 870° C.).
    Type: Application
    Filed: April 11, 2012
    Publication date: September 26, 2013
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Michael James Weimer, Bernard Patrick Bewlay, Michael Francis Xavier Gigliotti, JR., Thomas Joseph Kelly
  • Patent number: 8236232
    Abstract: Methods for making a reinforced refractory crucible for melting titanium alloys including providing a form, applying a facecoat to the form, the facecoat having at least one facecoat layer, applying a backing about the facecoat, the backing having at least one backing layer, applying at least one reinforcing element to at least a portion of the facecoat layer, the backing layer, or a combination thereof where the reinforcing element includes at least one composition selected from ceramic compositions, metallic compositions, and combinations thereof.
    Type: Grant
    Filed: September 28, 2007
    Date of Patent: August 7, 2012
    Assignee: General Electric Company
    Inventors: Bernard Patrick Bewlay, Michael Francis Xavier Gigliotti, Thomas Joseph Kelly, Mohamed Rahmane, Stephen Rutkowski, Michael James Weimer, Sairam Sundaram
  • Patent number: 8062581
    Abstract: Refractory crucibles capable of managing thermal stress and suitable for melting highly reactive alloys having a facecoat, a backing, and at least one retaining ring applied about at least a portion of the backing of the crucible, the retaining ring comprising a composition selected from the group consisting of conductive materials, non-conductive materials, and combinations thereof.
    Type: Grant
    Filed: November 30, 2007
    Date of Patent: November 22, 2011
    Inventors: Bernard Patrick Bewlay, Michael Francis Xavier Gigliotti, Mohamed Rahmane, Thomas Joseph Kelly, Michael James Weimer, Sairam Sundaram
  • Patent number: 8048365
    Abstract: Crucibles for melting titanium alloys having a facecoat including at least one facecoat layer containing an oxide selected from scandium oxide, yttrium oxide, hafnium oxide, a lanthanide series oxide, and combinations thereof, and a backing including at least one backing layer where the crucible has a backing to facecoat thickness ratio of from about 6.5:1 to about 20:1.
    Type: Grant
    Filed: September 28, 2007
    Date of Patent: November 1, 2011
    Assignee: General Electric Company
    Inventors: Bernard Patrick Bewlay, Brian Michael Ellis, Michael Francis Xavier Gigliotti, Thomas Joseph Kelly, Mohamed Rahmane, Stephen Francis Rutkowski, Michael James Weimer, Joseph Carl Wukusick
  • Patent number: 8007712
    Abstract: Reinforced crucibles for melting titanium alloys having a facecoat including at least one facecoat layer, a backing including at least one backing layer, and at least one reinforcing element applied to at least a portion of one or more of the facecoat layer, the backing layer, or a combination thereof where the reinforcing element includes at least one composition selected from ceramic compositions, metallic compositions, and combinations thereof.
    Type: Grant
    Filed: September 28, 2007
    Date of Patent: August 30, 2011
    Assignee: General Electric Company
    Inventors: Bernard Patrick Bewlay, Michael Francis Xavier Gigliotti, Thomas Joseph Kelly, Mohamed Rahmane, Stephen Rutkowski, Michael James Weimer, Sairam Sundaram
  • Publication number: 20110094705
    Abstract: Methods for centrifugally casting a highly reactive titanium metal involving providing a cold wall induction crucible having a plurality of induction coils and a removable bottom plate, using a power source to heat a titanium metal charge in the induction crucible to obtain a molten metal, preheating a secondary crucible and placing the preheated secondary crucible into a centrifugal casting machine, positioning the centrifugal casting machine having the secondary crucible beneath the induction crucible, withdrawing the bottom plate of the induction crucible and turning off the power source to the induction crucible to allow the molten metal to fall from the induction crucible into the secondary crucible, and accelerating the secondary crucible to centrifugally force the molten metal into a casting mold to produce a cast component.
    Type: Application
    Filed: November 27, 2007
    Publication date: April 28, 2011
    Inventors: THOMAS JOSEPH KELLY, MICHAEL JAMES WEIMER
  • Patent number: 7790101
    Abstract: Articles for use with highly reactive alloys that include a graphite crucible having an interior, and at least a first protective layer applied to the interior of the graphite crucible in which the graphite crucible having the first protective layer is used for melting highly reactive alloys.
    Type: Grant
    Filed: December 27, 2006
    Date of Patent: September 7, 2010
    Assignee: General Electric Company
    Inventors: Thomas Joseph Kelly, Michael James Weimer, Bernard Patrick Bewlay, Michael Francis Xavier Gigliotti, Jr.
  • Patent number: 7776143
    Abstract: A composition comprising a glass-forming binder component and a particulate corrosion resistant component. The particulate corrosion resistant component comprises corrosion resistant particulates having: a CTEp of at least about 4 and being solid at a temperature of about 1300° F. (704° C.) or greater; and a maximum median particle size defined by one of the following formulas: (a) for a CTEp of 8 or less, an MP equal to or less than (4.375×CTEp)?10; and (b) for a CTEp of greater than 8, an Mp equal to or less than (?4.375×CTEp)+60, wherein CTEp is the average CTE of the corrosion resistant particulates and wherein Mp is the median equivalent spherical diameter (ESD), in microns, of the corrosion resistant particulates. Also disclosed is an article comprising a turbine component comprising a metal substrate and a corrosion resistant coating overlaying the metal substrate, as well as a method for forming at least one layer of the corrosion resistant coating adjacent to the metal substrate.
    Type: Grant
    Filed: September 18, 2009
    Date of Patent: August 17, 2010
    Assignee: General Electric Company
    Inventors: Brian Thomas Hazel, Michael James Weimer