Patents by Inventor Souvik Nandi

Souvik Nandi 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: 12320064
    Abstract: A carpet tile, includes a pile fabric layer, a primary backing coupled with the pile fabric layer, a secondary backing coupled with the primary backing, and a dual-layer wet-laid nonwoven mat. The dual-layer wet-laid nonwoven mat includes a first layer comprising a plurality of glass fibers and a first binder and a second layer comprising a plurality of synthetic fibers and a second binder.
    Type: Grant
    Filed: June 5, 2019
    Date of Patent: June 3, 2025
    Assignee: Johns Manville
    Inventors: Richard T Hausman, Souvik Nandi, Philip Christopher Sharpe, Steven Westbrook
  • Publication number: 20250129544
    Abstract: A carpet tile, includes a pile fabric layer, a primary backing coupled with the pile fabric layer, a secondary backing coupled with the primary backing, and a nonwoven mat. The nonwoven mat includes a glass fiber rich layer having at least 80 weight percent of the glass fibers and a synthetic fiber rich layer having at least 80 weight percent of the synthetic fibers. The nonwoven mat also includes an emulsion binder that is applied to the glass fiber rich layer and the synthetic fiber rich layer to bind the glass fibers and synthetic fibers in said layers together. The nonwoven mat includes at least 10 weight percent of the binder and the binder is curable at a maximum temperature of below 330 degrees Fahrenheit. A total weight percent of glass fibers in the glass fiber rich layer and the synthetic fiber rich layer is at least 48 percent.
    Type: Application
    Filed: November 4, 2024
    Publication date: April 24, 2025
    Inventors: Zhihua Guo, Philip Christopher Sharpe, Richard T. Hausman, Bernard E. Weik, III, Souvik Nandi, Steven Westbrook
  • Patent number: 12220895
    Abstract: A glass facer for a constructions board includes a first non-woven layer of coarse fibers and a second non-woven layer of coarse fibers and microfibers. The glass facer also includes a binder that simultaneously binds or adheres the coarse fibers of the first non-woven layer together, the coarse fibers and the microfibers of the second non-woven layer together, and the first non-woven layer to the second non-woven layer. The first non-woven layer has a porosity and air permeability that enables the first non-woven layer to absorb a material of the construction board when the glass facer is positioned atop the construction board during manufacture of the construction board. The second non-woven layer is configured to block the material of the construction board from passing through the glass facer to an exterior surface of the second non-woven layer so that the material is not externally visible.
    Type: Grant
    Filed: March 22, 2024
    Date of Patent: February 11, 2025
    Assignee: Johns Manville
    Inventors: Souvik Nandi, Glenda B Bennett, Thomas Matthews
  • Publication number: 20240315473
    Abstract: Provided is a carpet comprising a textile top member, which includes carpet yarns and a nonwoven primary backing that is coupled with the carpet yarns so that the primary backing structurally supports the carpet yarns. The nonwoven primary backing includes reinforcement fibers deposed in the nonwoven primary backing. The reinforcement fibers are configured to mechanically reinforce and stabilize the carpet yarns. A secondary backing is coupled with the textile top member via a thermoplastic material. The carpet can be a carpet tile or a carpet rug.
    Type: Application
    Filed: March 8, 2024
    Publication date: September 26, 2024
    Inventors: Heath H Himstedt, Souvik Nandi, Rui Ferreira, Philip Christopher Sharpe
  • Publication number: 20240315474
    Abstract: Provided is a carpet comprising a textile top member, which includes carpet yarns and a nonwoven primary backing that is coupled with the carpet yarns so that the primary backing structurally supports the carpet yarns. The nonwoven primary backing includes a scrim reinforcement. The scrim reinforcement is configured to mechanically reinforce and stabilize the carpet yarns. A secondary backing is coupled with the textile top member via a thermoplastic material. The carpet can be a carpet tile or a carpet rug.
    Type: Application
    Filed: March 8, 2024
    Publication date: September 26, 2024
    Inventors: Heath H Himstedt, Souvik Nandi, Rui Ferreira, Philip Christopher Sharpe
  • Patent number: 12074329
    Abstract: A pasting carrier for a lead-acid battery. The pasting carrier includes a nonwoven fiber mat having a thickness between 5 and 50 mils, the nonwoven fiber mat being composed of a plurality of entangled glass microfibers.
    Type: Grant
    Filed: June 2, 2022
    Date of Patent: August 27, 2024
    Assignee: Johns Manville
    Inventors: Heath H Himstedt, Souvik Nandi, John Scherlein
  • Publication number: 20240227362
    Abstract: A glass facer for a constructions board includes a first non-woven layer of coarse fibers and a second non-woven layer of coarse fibers and microfibers. The glass facer also includes a binder that simultaneously binds or adheres the coarse fibers of the first non-woven layer together, the coarse fibers and the microfibers of the second non-woven layer together, and the first non-woven layer to the second non-woven layer. The first non-woven layer has a porosity and air permeability that enables the first non-woven layer to absorb a material of the construction board when the glass facer is positioned atop the construction board during manufacture of the construction board. The second non-woven layer is configured to block the material of the construction board from passing through the glass facer to an exterior surface of the second non-woven layer so that the material is not externally visible.
    Type: Application
    Filed: March 22, 2024
    Publication date: July 11, 2024
    Inventors: Souvik Nandi, Glenda B Bennett, Thomas Matthews
  • Patent number: 11951712
    Abstract: A glass facer for a constructions board includes a first non-woven layer of coarse fibers and a second non-woven layer of coarse fibers and microfibers. The glass facer also includes a binder that simultaneously binds or adheres the coarse fibers of the first non-woven layer together, the coarse fibers and the microfibers of the second non-woven layer together, and the first non-woven layer to the second non-woven layer. The first non-woven layer has a porosity and air permeability that enables the first non-woven layer to absorb a material of the construction board when the glass facer is positioned atop the construction board during manufacture of the construction board. The second non-woven layer is configured to block the material of the construction board from passing through the glass facer to an exterior surface of the second non-woven layer so that the material is not externally visible.
    Type: Grant
    Filed: January 14, 2020
    Date of Patent: April 9, 2024
    Assignee: Johns Manville
    Inventors: Souvik Nandi, Glenda B Bennett, Thomas Matthews
  • Publication number: 20240057801
    Abstract: A carpet tile includes a textile top member and a cushion mat that is coupled with the textile top member via a thermoplastic material. The textile top member includes carpet yarns and a backing that is coupled with the carpet yarns so that the backing structurally supports the carpet yarns. The cushion mat includes a polymeric material component having polymer fibers that are randomly oriented and entangled together and a scrim reinforcement that is disposed within the polymeric material component. The scrim reinforcement reinforces and stabilizes the polymeric material component and is entirely covered and concealed by the intermeshed polymer fibers.
    Type: Application
    Filed: November 2, 2023
    Publication date: February 22, 2024
    Inventors: Heath H. Himstedt, Souvik Nandi, Katelyn Grace Horn, Philip Christopher Sharpe
  • Patent number: 11825970
    Abstract: A carpet tile includes a textile top member and a cushion mat that is coupled with the textile top member via a thermoplastic material. The textile top member includes carpet yarns and a backing that is coupled with the carpet yarns so that the backing structurally supports the carpet yarns. The cushion mat includes a polymeric material component having polymer fibers that are randomly oriented and entangled together and a scrim reinforcement that is disposed within the polymeric material component. The scrim reinforcement reinforces and stabilizes the polymeric material component and is entirely covered and concealed by the intermeshed polymer fibers.
    Type: Grant
    Filed: October 20, 2022
    Date of Patent: November 28, 2023
    Assignee: Johns Manville
    Inventors: Heath H Himstedt, Souvik Nandi, Katelyn Grace Horn, Philip Christopher Sharpe
  • Patent number: 11814785
    Abstract: A carpet tile includes a textile top member and a carrier mat that is coupled with the textile top member via a thermoplastic material. The textile top member includes carpet yarns and a backing that is coupled with the carpet yarns so that the backing structurally supports the carpet yarns. The carrier mat includes a polymeric material component, a reinforcement, and a binder that is uniformly distributed throughout the polymeric material component and reinforcement component. The polymeric material component includes polymer fibers that are randomly oriented and entangled together. The reinforcement is disposed within the polymeric material component so that the reinforcement is entirely covered and concealed by the entangled polymer fibers to prevent exposure to a user. The reinforcement mechanically reinforces and stabilizes the polymeric material component and carpet tile.
    Type: Grant
    Filed: January 20, 2023
    Date of Patent: November 14, 2023
    Assignee: Johns Manville
    Inventors: Heath H Himstedt, Souvik Nandi, Philip Christopher Sharpe
  • Publication number: 20230151540
    Abstract: A carpet tile includes a textile top member and a carrier mat that is coupled with the textile top member via a thermoplastic material. The textile top member includes carpet yarns and a backing that is coupled with the carpet yarns so that the backing structurally supports the carpet yarns. The carrier mat includes a polymeric material component, a reinforcement, and a binder that is uniformly distributed throughout the polymeric material component and reinforcement component. The polymeric material component includes polymer fibers that are randomly oriented and entangled together. The reinforcement is disposed within the polymeric material component so that the reinforcement is entirely covered and concealed by the entangled polymer fibers to prevent exposure to a user. The reinforcement mechanically reinforces and stabilizes the polymeric material component and carpet tile.
    Type: Application
    Filed: January 20, 2023
    Publication date: May 18, 2023
    Inventors: Heath H Himstedt, Souvik Nandi, Philip Christopher Sharpe
  • Patent number: 11618997
    Abstract: A carpet tile includes a textile top member and a carrier mat that is coupled with the textile top member via a thermoplastic material. The textile top member includes carpet yarns and a backing that is coupled with the carpet yarns so that the backing structurally supports the carpet yarns. The carrier mat includes a polymeric material component, a reinforcement, and a binder that is uniformly distributed throughout the polymeric material component and reinforcement component. The polymeric material component includes polymer fibers that are randomly oriented and entangled together. The reinforcement is disposed within the polymeric material component so that the reinforcement is entirely covered and concealed by the entangled polymer fibers to prevent exposure to a user. The reinforcement mechanically reinforces and stabilizes the polymeric material component and carpet tile.
    Type: Grant
    Filed: October 30, 2020
    Date of Patent: April 4, 2023
    Assignee: Johns Manville
    Inventors: Heath H. Himstedt, Souvik Nandi, Philip Christopher Sharpe
  • Publication number: 20230041813
    Abstract: A carpet tile includes a textile top member and a cushion mat that is coupled with the textile top member via a thermoplastic material. The textile top member includes carpet yarns and a backing that is coupled with the carpet yarns so that the backing structurally supports the carpet yarns. The cushion mat includes a polymeric material component having polymer fibers that are randomly oriented and entangled together and a scrim reinforcement that is disposed within the polymeric material component. The scrim reinforcement reinforces and stabilizes the polymeric material component and is entirely covered and concealed by the intermeshed polymer fibers.
    Type: Application
    Filed: October 20, 2022
    Publication date: February 9, 2023
    Inventors: Heath H. Himstedt, Souvik Nandi, Katelyn Grace Horn, Philip Christopher Sharpe
  • Patent number: 11510515
    Abstract: A carpet tile includes a textile top member and a cushion mat that is coupled with the textile top member via a thermoplastic material. The textile top member includes carpet yarns and a backing that is coupled with the carpet yarns so that the backing structurally supports the carpet yarns. The cushion mat includes a polymeric material component having polymer fibers that are randomly oriented and entangled together and a scrim reinforcement that is disposed within the polymeric material component. The scrim reinforcement reinforces and stabilizes the polymeric material component and is entirely covered and concealed by the intermeshed polymer fibers.
    Type: Grant
    Filed: November 2, 2018
    Date of Patent: November 29, 2022
    Assignee: Johns Manville
    Inventors: Heath H. Himstedt, Souvik Nandi, Katelyn Grace Horn, Philip Christopher Sharpe
  • Publication number: 20220293959
    Abstract: A pasting carrier for a lead-acid battery. The pasting carrier includes a nonwoven fiber mat having a thickness between 5 and 50 mils, the nonwoven fiber mat being composed of a plurality of entangled glass microfibers.
    Type: Application
    Filed: June 2, 2022
    Publication date: September 15, 2022
    Inventors: Heath H Himstedt, Souvik Nandi, John Scherlein
  • Patent number: 11417889
    Abstract: A pasting carrier for a lead-acid battery. The pasting carrier includes a nonwoven fiber mat having a thickness between 5 and 50 mils, the nonwoven fiber mat being composed of a plurality of entangled glass microfibers.
    Type: Grant
    Filed: February 27, 2020
    Date of Patent: August 16, 2022
    Assignee: Johns Manville
    Inventors: Heath H Himstedt, Souvik Nandi, John Scherlein
  • Publication number: 20220219424
    Abstract: A flooring product may include an upper flooring material and a glassless wet-laid nonwoven mat. The glassless wet-laid nonwoven mat may include a plurality of polymeric fibers and a binder. The plurality of polymeric fibers have a linear mass density of between about 1.0 denier and 4.0 denier. The plurality of polymeric fibers have lengths of between about 6 mm and 25 mm. The binder has a loss on ignition of at least about 20%. The glassless wet-laid nonwoven mat has a hot-wet % of at least about 20%.
    Type: Application
    Filed: January 11, 2021
    Publication date: July 14, 2022
    Inventors: Zhihua Guo, Rui Ferreira, Souvik Nandi, Philip Christopher Sharpe
  • Publication number: 20220136169
    Abstract: A carpet tile includes a textile top member and a carrier mat that is coupled with the textile top member via a thermoplastic material. The textile top member includes carpet yarns and a backing that is coupled with the carpet yarns so that the backing structurally supports the carpet yarns. The carrier mat includes a polymeric material component, a reinforcement, and a binder that is uniformly distributed throughout the polymeric material component and reinforcement component. The polymeric material component includes polymer fibers that are randomly oriented and entangled together. The reinforcement is disposed within the polymeric material component so that the reinforcement is entirely covered and concealed by the entangled polymer fibers to prevent exposure to a user. The reinforcement mechanically reinforces and stabilizes the polymeric material component and carpet tile.
    Type: Application
    Filed: October 30, 2020
    Publication date: May 5, 2022
    Inventors: Heath H. Himstedt, Souvik Nandi, Philip Christopher Sharpe
  • Publication number: 20210376304
    Abstract: A multilayer non-woven mat for a lead-acid battery includes a first layer of non-woven web of fibers including coarse fibers having an average fiber diameter from about 6 ?m to about 25 ?m and a second layer of non-woven web of fibers including microfibers having an average diameter from about 0.5 ?m to about 5 ?m. The multilayer non-woven mat includes a binder configured to simultaneously bind the coarse fibers in the first layer together, the microfibers in the second layer together, and at least some of the coarse fibers in the first layer to at least some of the microfibers in the second layer together. The first layer is configured to absorb an active material of an electrode of the lead acid battery, and the second layer is configured to block the active material of the electrode from passing through the non-woven glass mat.
    Type: Application
    Filed: May 29, 2020
    Publication date: December 2, 2021
    Inventors: Zhihua Guo, Richard Thomas Hausman, Souvik Nandi