Patents by Inventor William L. Johnson

William L. Johnson 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).

  • Publication number: 20150090375
    Abstract: The present disclosure is directed to the use of cellulosic materials, such as wood, paper, etc., or synthetic polymeric materials, such as a thermoplastic, rubber, etc., or a composite containing one or more of these materials as feedstock barrels for the process of injection molding of metallic glasses by rapid capacitor discharge forming (RCDF) techniques.
    Type: Application
    Filed: September 30, 2014
    Publication date: April 2, 2015
    Inventors: David S. Lee, Joseph P. Schramm, Marios D. Demetriou, William L. Johnson, Montague Rittgers
  • Publication number: 20150088025
    Abstract: An exemplary EMG response detection system may be configured to 1) direct an implantable stimulator to sequentially present a plurality of substantially identical stimulation events to a patient, 2) record a plurality of EMG signals generated by a muscle in the patient and each corresponding to a presentation of a particular stimulation event included in the plurality of substantially identical stimulation events, 3) determine an asynchronous component of each of the recorded EMG signals, and 4) utilize the asynchronous components of the recorded EMG signals to determine whether an EMG response is evoked by the stimulation events.
    Type: Application
    Filed: May 1, 2012
    Publication date: March 26, 2015
    Applicant: ADVANCED BIONICS AG
    Inventors: Leonid M. Litvak, William L. Johnson
  • Patent number: 8978449
    Abstract: A composition comprising a fluid, and a material dispersed in the fluid, the material made up of particles having a complex three dimensional surface area such as a sharp blade-like surface, the particles having an aspect ratio larger than 0.7 for promoting kinetic boundary layer mixing in a non-linear-viscosity zone. The composition may further include an additive dispersed in the fluid. The fluid may be a thermopolymer material. A method of extruding the fluid includes feeding the fluid into an extruder, feeding additives into the extruder, feeding a material into the extruder, passing the material through a mixing zone in the extruder to disperse the material within the fluid wherein the material migrates to a boundary layer of the fluid to promote kinetic mixing of the additives within the fluid, the kinetic mixing taking place in a non-linear viscosity zone.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: March 17, 2015
    Assignee: Ecopuro, LLC
    Inventor: William L. Johnson, Sr.
  • Patent number: 8961716
    Abstract: An apparatus and method of uniformly heating, rheologically softening, and thermoplastically forming metallic glasses rapidly into a net shape using a rapid capacitor discharge forming (RCDF) tool are provided. The RCDF method utilizes the discharge of electrical energy stored in a capacitor to uniformly and rapidly heat a sample or charge of metallic glass alloy to a predetermined “process temperature” between the glass transition temperature of the amorphous material and the equilibrium melting point of the alloy in a time scale of several milliseconds or less. Once the sample is uniformly heated such that the entire sample block has a sufficiently low process viscosity it may be shaped into high quality amorphous bulk articles via any number of techniques including, for example, injection molding, dynamic forging, stamp forging, sheet forming, and blow molding in a time frame of less than 1 second.
    Type: Grant
    Filed: October 15, 2013
    Date of Patent: February 24, 2015
    Assignee: California Institute of Technology
    Inventors: William L. Johnson, Marios D. Demetriou, Joseph P. Schramm
  • Publication number: 20150050181
    Abstract: A fluxing method is disclosed by which the melt of aluminum-contaminated Ni-based glass-forming alloys is fluxed using a fluxing agent based on boron and oxygen in order to reverse the adverse effects of aluminum impurities on the glass-forming ability and toughness.
    Type: Application
    Filed: August 12, 2014
    Publication date: February 19, 2015
    Inventors: Jong Hyun Na, Michael Floyd, Danielle Duggins, David S. Lee, Marios D. Demetriou, William L. Johnson
  • Publication number: 20150047755
    Abstract: The present disclosure is directed to Ni—P—B alloys and glasses containing small fractions of Nb and Ta and optionally Mn. Over a specific range, the alloys are capable of forming bulk metallic glasses having critical casting thickness in excess of 1 mm. In one embodiment, compositions with a Mn content of between 3 and 4 atomic percent, Nb content of about 3 atomic percent, B content of about 3 atomic percent, and P content of about 16.5 atomic percent, where the balance in Ni, were capable of forming bulk metallic glass rods with diameters as large as 5 mm or larger. In another embodiment, Ni-based compositions with a Mn content of between 5 and 7 atomic percent, Ta content of between 1 and 2 atomic percent, B content of about 3 atomic percent, and P content of about 16.5 atomic percent, where the balance in Ni, were capable of forming bulk metallic glass rods with diameters as large as 5 mm or larger.
    Type: Application
    Filed: August 12, 2014
    Publication date: February 19, 2015
    Inventors: Jong Hyun Na, Danielle Duggins, Michael Floyd, Glenn Garrett, Maximilien Launey, Marios D. Demetriou, William L. Johnson
  • Publication number: 20150020929
    Abstract: The present disclosure provides specified ranges in the Fe—Mo—Ni—Cr—P—C—B alloys such that the alloys are capable of forming bulk glasses having unexpectedly high glass-forming ability. The critical rod diameter of the disclosed alloys is at least 10 mm.
    Type: Application
    Filed: July 18, 2014
    Publication date: January 22, 2015
    Inventors: Jong Hyun Na, Michael Floyd, Glenn Garrett, Marios D. Demetriou, William L. Johnson
  • Publication number: 20150009659
    Abstract: A universal solar illuminator system (100) is mounted to a flagpole apparatus (102) having a flagpole (104) and flag (106). The illuminator system (100) includes an elongated structure (120) opening outwardly and exposing a recessed area (123) having a rear, curved surface (125). The system (100) also includes an LED network (126) having a series of LED's (124) energized through a DC circuit (127) from a series battery pack (138). Solar panels (150, 152) charge the series battery pack (138) during daylight conditions.
    Type: Application
    Filed: September 22, 2014
    Publication date: January 8, 2015
    Inventors: Joey D. Werner, William L. Johnson
  • Publication number: 20150007990
    Abstract: An improvement over known hydraulic fracturing fluids. Boundary layer kinetic mixing material is added to components of fracturing fluid wherein kinetic mixing material is a plurality of particles wherein at least 25% of particles are several types, i.e., having surface characteristics of thin walls, three dimensional wedge-like sharp blades, points, jagged bladelike surfaces, thin blade surfaces, three-dimensional blade shapes that may have shapes similar to a “Y”, “V” or “X” shape or other geometric shape, slightly curved thin walls having a shape similar to an egg shell shape, crushed hollow spheres, sharp bladelike features, 90° corners that are well defined, conglomerated protruding arms in various shapes, such as cylinders, rectangles, Y-shaped particles, X-shaped particles, octagons, pentagon, triangles, and diamonds.
    Type: Application
    Filed: July 22, 2014
    Publication date: January 8, 2015
    Inventor: WILLIAM L. JOHNSON, SR.
  • Patent number: 8911572
    Abstract: A family of iron-based, phosphor-containing bulk metallic glasses having excellent processability and toughness, methods for forming such alloys, and processes for manufacturing articles therefrom are provided. The inventive iron-based alloy is based on the observation that by very tightly controlling the composition of the metalloid moiety of the Fe-based, P-containing bulk metallic glass alloys it is possible to obtain highly processable alloys with surprisingly low shear modulus and high toughness. Further, by incorporating small fractions of silicon (Si) and cobalt (Co) into the Fe—Ni—Mo—P—C—B system, alloys of 3 and 4 mm have been synthesized with high saturation magnetization and low switching losses.
    Type: Grant
    Filed: September 27, 2011
    Date of Patent: December 16, 2014
    Assignee: California Institute of Technology
    Inventors: Samuel T. Kim, Marios D. Demetriou, William L. Johnson
  • Patent number: 8911568
    Abstract: The invention is directed to Pd-based metallic glass alloys useful in biomedical applications having no Ni or Cu. Exemplary metallic glass alloys are represented by AaBb{(Si)100-c(D)c}d, where A may be selected from Pd, and combinations of Pd and Pt, B may be selected from Ag, Au, Co, Fe, and combinations thereof, and D may be selected from P, Ge, B, S. Also, a, b, c and d are atomic percentages, and a ranges from about 60 to about 90, b ranges from about 2 to about 18, d ranges from about 5 to about 25, and c is greater than 0 and less than 100.
    Type: Grant
    Filed: December 15, 2011
    Date of Patent: December 16, 2014
    Assignee: California Institute of Technology
    Inventors: Marios D. Demetriou, William L. Johnson
  • Publication number: 20140345350
    Abstract: An apparatus and method of uniformly heating, rheologically softening, and thermoplastically forming magnetic metallic glasses rapidly into a net shape using a rapid capacitor discharge forming (RCDF) tool are provided. The RCDF method utilizes the discharge of electrical energy stored in a capacitor to uniformly and rapidly heat a sample or charge of metallic glass alloy to a predetermined “process temperature” between the glass transition temperature of the amorphous material and the equilibrium melting point of the alloy in a time scale of several milliseconds or less. Once the sample is uniformly heated such that the entire sample block has a sufficiently low process viscosity it may be shaped into high quality amorphous bulk articles via any number of techniques including, for example, injection molding, dynamic forging, stamp forging, sheet forming, and blow molding in a time frame of less than 1 second.
    Type: Application
    Filed: October 18, 2013
    Publication date: November 27, 2014
    Applicant: California Institute of Technology
    Inventors: Georg Kaltenboeck, Joseph P. Schramm, Marios D. Demetriou, William L. Johnson
  • Publication number: 20140345755
    Abstract: A Ni-based bulk metallic glass forming alloy is provided. The alloy includes Ni(100-a-b-c-d)CraNbbPcBd, where an atomic percent of chromium (Cr) a ranges from 3 to 13, an atomic percent of niobium (Nb) b is determined by x?y*a, where x ranges from 3.8 to 4.2 and y ranges from 0.11 to 0.14, an atomic percent of phosphorus (P) c ranges from 16.25 to 17, an atomic percent of boron (B) d ranges from 2.75 to 3.5, and the balance is nickel (Ni), and where the alloy is capable of forming a metallic glass object having a lateral dimension of at least 6 mm, where the metallic glass has a stress intensity factor at crack initiation when measured on a 3 mm diameter rod containing a notch with length between 1 and 2 mm and root radius between 0.1 and 0.15 mm, the stress intensity factor being at least 70 MPa m1/2.
    Type: Application
    Filed: October 30, 2013
    Publication date: November 27, 2014
    Applicant: Glassimetal Technology, Inc.
    Inventors: Jong Hyun Na, Michael Floyd, Marios D. Demetriou, William L. Johnson, Glenn Garrett, Maximilien Launey
  • Publication number: 20140332120
    Abstract: Ferrous metal alloys including Fe, Co and optionally Ni with metalloids Si, B and P are provided that are substantially close to the peak in glass forming ability and have a combination of both good glass formability and good ferromagnetic properties. In particular, Fe/Co-based compositions wherein the Co content is between 15 and 30 atomic percent and the metalloid content is between 22 and 24 atomic percent at a well-defined metalloid moiety, have been shown to be capable of forming bulk glassy rods with diameters as large as 4 mm or larger. In addition, incorporating a small content of Ni under 10 atomic percent and additions of Mo, Cr, Nb, Ge, or C at an incidental impurity level of up to 2 atomic percent are not expected to impair the bulk-glass-forming ability of the present alloys.
    Type: Application
    Filed: May 7, 2014
    Publication date: November 13, 2014
    Applicant: California Institute of Technology
    Inventors: Xiao Liu, Marios D. Demetriou, William L. Johnson, Michael Floyd
  • Publication number: 20140299317
    Abstract: An improvement over known hydraulic fracturing fluids. Boundary layer kinetic mixing material is added to components of fracturing fluid wherein kinetic mixing material is a plurality of particles wherein at least 25% of particles are several types, i.e., having surface characteristics of thin walls, three dimensional wedge-like sharp blades, points, jagged bladelike surfaces, thin blade surfaces, three-dimensional blade shapes that may have shapes similar to a “Y”, “V” or “X” shape or other geometric shape, slightly curved thin walls having a shape similar to an egg shell shape, crushed hollow spheres, sharp bladelike features, 90° corners that are well defined, conglomerated protruding arms in various shapes, such as cylinders, rectangles, Y-shaped particles, X-shaped particles, octagons, pentagon, triangles, and diamonds.
    Type: Application
    Filed: January 6, 2014
    Publication date: October 9, 2014
    Applicant: Ecopuro, LLC
    Inventor: WILLIAM L. JOHNSON, SR.
  • Publication number: 20140283956
    Abstract: The disclosure is directed to a method of forming high-aspect-ratio metallic glass articles that are substantially free of defects and cosmetic flaws by means of rapid capacitive discharge forming. Metallic glass alloys that are stable against crystallization for at least 100 ms at temperatures where the viscosity is in the range of 100 to 104 Pa-s are considered as suitable for forming such high-aspect-ratio articles.
    Type: Application
    Filed: March 17, 2014
    Publication date: September 25, 2014
    Applicant: Glassimetal Technology, Inc.
    Inventors: Joseph P. Schramm, Jong Hyun Na, Marios D. Demetriou, David S. Lee, William L. Johnson
  • Publication number: 20140273758
    Abstract: A composition comprising a fluid, and a material dispersed in the fluid, the material made up of particles having a complex three dimensional surface area such as a sharp blade-like surface, the particles having an aspect ratio larger than 0.7 for promoting kinetic boundary layer mixing in a non-linear-viscosity zone. The composition may further include an additive dispersed in the fluid. The fluid may be a thermopolymer material. A method of extruding the fluid includes feeding the fluid into an extruder, feeding additives into the extruder, feeding a material into the extruder, passing the material through a mixing zone in the extruder to disperse the material within the fluid wherein the material migrates to a boundary layer of the fluid to promote kinetic mixing of the additives within the fluid, the kinetic mixing taking place in a non-linear viscosity zone.
    Type: Application
    Filed: May 30, 2014
    Publication date: September 18, 2014
    Applicant: ECOPURO, LLC
    Inventor: WILLIAM L. JOHNSON, SR.
  • Publication number: 20140238551
    Abstract: The disclosure is directed to Ni—P—B alloys bearing Mn and optionally Cr and Mo that are capable of forming a metallic glass, and more particularly metallic glass rods with diameters at least 1 mm and as large as 5 mm or larger. The disclosure is further directed to Ni—Mn—Cr—Mo—P—B alloys capable of demonstrating a good combination of glass forming ability, strength, toughness, bending ductility, and corrosion resistance.
    Type: Application
    Filed: February 26, 2014
    Publication date: August 28, 2014
    Applicant: Glassimetal Technology, Inc.
    Inventors: Jong Hyun Na, Michael Floyd, Marios D. Demetriou, William L. Johnson, Glenn Garrett, Maximilien Launey, Danielle Duggins
  • Patent number: 8813847
    Abstract: An improvement over known hydraulic fracturing fluids. Boundary layer kinetic mixing material is added to components of fracturing fluid wherein kinetic mixing material is a plurality of particles wherein at least 25% of particles are several types, i.e., having surface characteristics of thin walls, three dimensional wedge-like sharp blades, points, jagged bladelike surfaces, thin blade surfaces, three-dimensional blade shapes that may have shapes similar to a “Y”, “V” or “X” shape or other geometric shape, slightly curved thin walls having a shape similar to an egg shell shape, crushed hollow spheres, sharp bladelike features, 90° corners that are well defined, conglomerated protruding arms in various shapes, such as cylinders, rectangles, Y-shaped particles, X-shaped particles, octagons, pentagon, triangles, and diamonds.
    Type: Grant
    Filed: January 6, 2014
    Date of Patent: August 26, 2014
    Assignee: Ecopuro, LLC
    Inventor: William L. Johnson, Sr.
  • Patent number: RE45414
    Abstract: A process and apparatus for continuous casting of amorphous alloy sheets having large sheet thickness using bulk solidifying amorphous alloys are provided. Thick continuous amorphous alloy sheets made of bulk solidifying amorphous alloys are also provided.
    Type: Grant
    Filed: August 29, 2012
    Date of Patent: March 17, 2015
    Assignee: Crucible Intellectual Property, LLC
    Inventor: William L. Johnson