Patents Examined by Leo B. Tentoni
  • Patent number: 10654208
    Abstract: In one embodiment, a method may comprise heating a composite material into a viscous form, wherein the composite material comprises a thermoplastic and a plurality of reinforcement fibers, wherein the plurality of reinforcement fibers is randomly arranged within the thermoplastic. The method may further comprise extruding a plurality of strands of the composite material, wherein extruding the plurality of strands causes the plurality of reinforcement fibers within each strand to align. The method may further comprise arranging the plurality of strands of the composite material to form an assembly fixture, wherein the assembly fixture comprises an anisotropic thermal expansion property, and wherein the anisotropic thermal expansion property is based on an orientation of the plurality of reinforcement fibers within the assembly fixture.
    Type: Grant
    Filed: September 20, 2017
    Date of Patent: May 19, 2020
    Assignee: BELL HELICOPTER TEXTRON INC.
    Inventors: David G. Carlson, Douglas K. Wolfe, James A. Cordell
  • Patent number: 10653817
    Abstract: Compositions and blends of biopolymers and bio-acceptable polymers are described, along with the use of benign solvent systems to prepare biocompatible scaffolds and surgically implantable devices for use in supporting and facilitating the repair of soft tissue injuries.
    Type: Grant
    Filed: December 17, 2018
    Date of Patent: May 19, 2020
    Assignee: EMBODY INC.
    Inventors: Michael P. Francis, Yas Maghdouri-White, Hilary Wriggers, Nardos Sori, Stella Petrova, Seth Polk, Nicholas Thayer
  • Patent number: 10647046
    Abstract: A method of manufacturing bulked continuous carpet filament which, in various embodiments, comprises: (A) grinding recycled PET bottles into a group of flakes; (B) washing the flakes; (C) identifying and removing impurities, including impure flakes, from the group of flakes; (D) passing the flakes through a PET crystallizer; (E) passing the group of flakes through an MRS extruder while maintaining the pressure within the MRS portion of the MRS extruder below about 18 millibars; (F) passing the resulting polymer melt through at least one filter having a micron rating of less than about 50 microns; and (G) forming the recycled polymer into bulked continuous carpet filament that consists essentially of recycled PET.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: May 12, 2020
    Assignee: Aladdin Manufacturing Corporation
    Inventor: Thomas R. Clark
  • Patent number: 10647053
    Abstract: In an example of a three-dimensional (3D) printing method, a polymeric build material is applied. A fusing agent is selectively applied on at least a portion of the polymeric build material. A mechanical tailoring agent is selectively applied on at least a region of the portion. The polymeric build material is exposed to radiation, thereby fusing the at least the portion of the polymeric build material in contact with the fusing agent to form a layer. The mechanical tailoring agent forms a composite layer in the at least the region, and the composite layer has a different mechanical property than that of an area of the layer not in contact with the mechanical tailoring agent.
    Type: Grant
    Filed: May 12, 2016
    Date of Patent: May 12, 2020
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Kristopher J. Erickson, Lihua Zhao, Howard S. Tom, Aja Hartman, Yan Zhao, Andrew E. Fitzhugh
  • Patent number: 10646616
    Abstract: A bone-regeneration material that contains calcium phosphate particles in biodegradable fibers of PLGA manufactured by electrospinning. A PLGA resin is heated in a kneader until the resin viscosity becomes 102 to 107 Pa·s. A powder of calcium phosphate fine particles is added while the blade is rotated. The mixture is kneaded by continuous rotation of the blade in the heated state to disperse the calcium phosphate fine particles to obtain a composite having calcium phosphate fine particles dispersed in the PLGA resin. The composite is dissolved by a solvent, and the PLGA resin is completely dissolved by agitation for a prescribed duration to prepare a spinning solution in which the calcium phosphate fine particles are dispersed. Electrospinning is performed on the spinning solution to manufacture biodegradable fibers having therein the calcium phosphate fine particles substantially uniformly dispersed.
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: May 12, 2020
    Assignees: National University Corporation Nagoya Institute of Technology, Orthorebirth Co., Ltd.
    Inventors: Toshihiro Kasuga, Yasutoshi Nishikawa
  • Patent number: 10647880
    Abstract: A method of forming a three-dimensional object of polyurethane, polyurea, or copolymer thereof is carried out by: (a) providing a carrier and an optically transparent member having a build surface, the carrier and the build surface defining a build region therebetween; (b) filling the build region with a polymerizable liquid, the polymerizable liquid including at least one of: (i) a blocked or reactive blocked prepolymer, (ii) a blocked or reactive blocked diisocyanate, or (iii) a blocked or reactive blocked diisocyanate chain extender; (c) irradiating the build region with light through the optically transparent member to form a solid blocked polymer scaffold and advancing the carrier away from the build surface to form a three-dimensional intermediate having the same shape as, or a shape to be imparted to, the three-dimensional object, with the intermediate containing the chain extender; and then (d) heating or microwave irradiating the three-dimensional intermediate sufficiently to form from the three-dime
    Type: Grant
    Filed: February 7, 2019
    Date of Patent: May 12, 2020
    Assignee: Carbon, Inc.
    Inventors: Jason P. Rolland, Kai Chen, Justin Poelma, James Goodrich, Robert Pinschmidt, Joseph M. DeSimone, Lloyd M. Robeson
  • Patent number: 10639818
    Abstract: A method of manufacturing bulked continuous carpet filament which, in various embodiments, comprises: (A) grinding recycled PET bottles into a group of flakes; (B) washing the flakes; (C) identifying and removing impurities, including impure flakes, from the group of flakes; (D) passing the group of flakes through an MRS extruder while maintaining the pressure within the MRS portion of the MRS extruder below about 5 millibars; (E) passing the resulting polymer melt through at least one filter having a micron rating of less than about 50 microns; and (F) forming the recycled polymer into bulked continuous carpet filament that consists essentially of recycled PET.
    Type: Grant
    Filed: July 20, 2018
    Date of Patent: May 5, 2020
    Assignee: Aladdin Manufacturing Corporation
    Inventor: Thomas R. Clark
  • Patent number: 10640890
    Abstract: A method for forming porous fibers is provided. The fibers are formed from a thermoplastic composition containing a continuous phase, which includes a matrix polymer, and a nanoinclusion additive that is at least partially incompatible with the matrix polymer so that it becomes dispersed within the continuous phase as discrete nano-scale phase domains. The method includes traversing a bundle of the fibers through a multi-stage drawing system that includes at least a first fluidic drawing stage and a second fluidic drawing stage. The first drawing stage employs a first fluidic medium having a first temperature and the second drawing stage employs a second fluidic medium having a second temperature. The first and second temperatures are both lower than the melting temperature of the matrix polymer, and the first temperature is greater than the second temperature.
    Type: Grant
    Filed: December 9, 2016
    Date of Patent: May 5, 2020
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Neil T. Scholl, Vasily A. Topolkaraev, Antonio J. Carrillo Ojeda, Ryan J. McEneany, Theodore T. Tower
  • Patent number: 10633770
    Abstract: Disclosed are methods for preparing a lignin/poly(vinyl alcohol) (PVA) fiber and for preparing a lignin/polyacrylonitrile (PAN) fiber. The methods can comprise adding a dope of lignin and PVA or a dope of lignin and PAN to a coagulation bath containing a solvent comprising one or more components, wherein the one or more components are present in the solvent in concentrations based on the hydrogen bonding character (fH) of the solvent, the polar character (fP) of the solvent, and the dispersive character (fD) of the solvent; and gel-spinning a lignin/PVA fiber or a lignin/PAN fiber from the coagulation bath.
    Type: Grant
    Filed: January 4, 2019
    Date of Patent: April 28, 2020
    Assignee: North Carolina State University
    Inventors: Ericka Ford, Charles Blackwell, Chunhong Lu
  • Patent number: 10632679
    Abstract: A three-dimensional printing system to print three-dimensional objects and a method of printed are disclosed. The system includes a printing apparatus to print three-dimensional objects and a controller to receive data from a material supply source and to control said printing apparatus.
    Type: Grant
    Filed: August 27, 2017
    Date of Patent: April 28, 2020
    Assignee: STRATASYS LTD.
    Inventors: Guy Menchik, Hanan Gothait, Eliahu M. Kritchman
  • Patent number: 10626237
    Abstract: A three-dimensionally printed article comprises a build material and a support material, the support material comprising a hydroxypropyl methylcellulose having a DS of at least 1.0 and an MS of at least 0.6, wherein DS is the degree of substitution of methoxyl groups and MS is the molar substitution of hydroxypropoxyl groups. The support material can be removed from the build material by contacting the support material with water.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: April 21, 2020
    Inventors: Roland Bayer, Aleksander J. Pyzik, Sharon Allen
  • Patent number: 10618215
    Abstract: A method of forming a three-dimensional object, is carried out by (a) providing a carrier and a build plate, the build plate comprising a semipermeable member, the semipermeable member comprising a build surface with the build surface and the carrier defining a build region therebetween, and with the build surface in fluid communication by way of the semipermeable member with a source of polymerization inhibitor; (b) filling the build region with a polymerizable liquid, the polymerizable liquid contacting the build surface; (c) irradiating the build region through the build plate to produce a solid polymerized region in the build region, while forming or maintaining a liquid film release layer comprised of the polymerizable liquid formed between the solid polymerized region and the build surface, the polymerization of which liquid film is inhibited by the polymerization inhibitor; and (d) advancing the carrier with the polymerized region adhered thereto away from the build surface on the build plate to create
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: April 14, 2020
    Assignee: Carbon, Inc.
    Inventors: Joseph M. DeSimone, Alexander Ermoshkin, Nikita Ermoshkin, Edward T. Samulski
  • Patent number: 10617146
    Abstract: This invention relates to a method of manufacturing a lyocell material for a cigarette filter, including (S1) spinning a lyocell spinning dope composed of 8 to 13 wt % of a cellulose pulp and 87 to 92 wt % of an N-methylmorpholine-N-oxide (NMMO) aqueous solution; (S2) coagulating the lyocell spinning dope spun in (S1), thus obtaining a lyocell multifilament; (S3) water-washing the lyocell multifilament obtained in (S2); (S4) oiling the lyocell multifilament water-washed in (S3); and (S5) applying steam and pressure to the lyocell multifilament obtained in (S4), thus obtaining a crimped tow having 30 to 40 crimps per inch.
    Type: Grant
    Filed: December 23, 2015
    Date of Patent: April 14, 2020
    Assignees: KOLON INDUSTRIES, INC., KT&G CORPORATION
    Inventors: Sang Woo Jin, Woo Chul Kim, Yong Kwan Cho, Jong Cheol Jeong, Sang Mok Lee, Sang Yoel Lee, Jong Yeol Kim, Soo Ho Kim, Bong Su Cheong, Hyun Suk Cho, Sung Jong Ki, Hyeon Tae Kim
  • Patent number: 10617576
    Abstract: A process and apparatus is used for making a fibrous nonwoven web with uniform, directionally-oriented projections by depositing fibrous material onto a first forming surface with holes positioned above a second forming surface with both forming surfaces traveling at different speeds to one another. As the fibers are deposited onto the first forming surface, a portion of the fibers are drawn down into the holes of the first forming surface forming the projections which contact the second forming surface. Due to the speed differential between the two forming surfaces the projections are uniformly skewed in the same direction. The resultant material is particularly suited for use as a wiping material which can be more abrasive in one direction but which is softer to the touch when wiped in the opposite direction thus making it a dual purpose material.
    Type: Grant
    Filed: January 22, 2019
    Date of Patent: April 14, 2020
    Assignee: KIMBERLY-CLARK WORLDWIDE, INC.
    Inventors: Kenneth B. Close, Michael A. Schmidt, Jillian A. Walter
  • Patent number: 10614923
    Abstract: A method of forming one or more structures by additive manufacturing comprises introducing a first layer of a powder mixture comprising graphite and a fuel on a surface of a substrate. The first layer is at least partially compacted and then exposed to laser radiation to form a first layer of material comprising the fuel dispersed within a graphite matrix material. At least a second layer of the powder mixture is provided over the first layer of material and exposed to laser radiation to form inter-granular bonds between the second layer and the first layer. Related structures and methods of forming one or more structures are also disclosed.
    Type: Grant
    Filed: July 18, 2017
    Date of Patent: April 7, 2020
    Assignee: Battelle Energy Alliance, LLC
    Inventors: Isabella J. Van Rooyen, Sean R. Morrell
  • Patent number: 10603868
    Abstract: The present invention relates to a melt-blown fiber web having improved elasticity and cohesion, and a manufacturing method therefor. The objective of the present invention is accomplished by a melt-blown fiber web comprising a thermoplastic resin which comprises 10 to 60 wt % of thermoplastic resin microfibers and 40 to 90 wt % of non-circular cross-sectional hollow conjugated staple fibers with respect to the total weight of the fiber web.
    Type: Grant
    Filed: November 23, 2018
    Date of Patent: March 31, 2020
    Assignee: IKSUNG CO., LTD.
    Inventors: Hun Joo Lee, Kee Wook Yang, Jong Hyuk Cha, Gue Ssuk Kang, Chang Hyeon Kim
  • Patent number: 10596755
    Abstract: A method of forming a three-dimensional object, is carried out by (a) providing a carrier and a build plate, the build plate comprising a semipermeable member, the semipermeable member comprising a build surface with the build surface and the carrier defining a build region therebetween, and with the build surface in fluid communication by way of the semipermeable member with a source of polymerization inhibitor; (b) filling the build region with a polymerizable liquid, the polymerizable liquid contacting the build surface, (c) irradiating the build region through the build plate to produce a solid polymerized region in the build region, while forming or maintaining a liquid film release layer comprised of the polymerizable liquid formed between the solid polymerized region and the build surface, wherein the polymerization of which liquid film is inhibited by the polymerization inhibitor; and (d) advancing the carrier with the polymerized region adhered thereto away from the build surface on the build plate t
    Type: Grant
    Filed: August 20, 2018
    Date of Patent: March 24, 2020
    Assignee: Carbon, Inc.
    Inventors: Joseph M. DeSimone, Alexander Ermoshkin, Edward T. Samulski
  • Patent number: 10589451
    Abstract: Apparatus for producing a three dimensional nanofiber structure includes (1) at least two spaced electrodes; (2) a spinner adapted to rotate the at least two spaced electrodes; (3) a syringe assembly adapted to eject a polymer solution from a syringe of the syringe assembly towards the at least two spaced electrodes while the at least two spaced electrodes are rotated by the spinner; and (4) a power supply assembly for providing the two spaced electrodes at a first electric potential, and for providing the syringe at a second electric potential which is different from the first electric potential. A composition of matter may include (1) a least one layer of nanofibers in which a distribution of angles of fibers is “aligned;” and (2) at least one gel layer, wherein the at least one layer of microfibers and the at least one gel layer alternate to form a laminate.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: March 17, 2020
    Assignee: New York University
    Inventors: Nikita Grigoryev, Kalle Levon
  • Patent number: 10589459
    Abstract: A method of layerwise fabrication of a three-dimensional object is disclosed. The method comprises, for each of at least a few of the layers: dispensing at least a first modeling formulation and a second modeling formulation to form a core region using both the first and the second modeling formulations, and at least one envelope region at least partially surrounding the core region using one of the first and the second modeling formulations but not the other one of the first and the second modeling formulations. The method can also comprise exposing the layer to curing energy. The first modeling formulation is characterized, when hardened, by heat deflection temperature (HDT) of at least 90° C., and the second modeling formulation is characterized, when hardened, by Izod impact resistance (IR) value of at least 45 J/m.
    Type: Grant
    Filed: September 20, 2017
    Date of Patent: March 17, 2020
    Assignee: Stratasys Ltd.
    Inventors: Diana Ravich, Ophira Melamed, Avraham Teken, Gavish Mida, Avraham Levy, Cesar M. Manna
  • Patent number: 10584429
    Abstract: A method of producing a liquid crystalline polyester fiber includes subjecting a yarn prepared by melt spinning a liquid crystalline polyester to a solid-phase polymerization after applying inorganic particles (A) and a phosphate-based compound (B) to the yarn. The method can optionally include cleaning the liquid crystalline polyester fiber after the solid-phase polymerization.
    Type: Grant
    Filed: June 25, 2018
    Date of Patent: March 10, 2020
    Assignee: Toray Industries, Inc.
    Inventors: Chieko Kawamata, Yusuke Ono, Hiroo Katsuta, Yoshitsugu Funatsu