Patents by Inventor Sandeep Gaikwad

Sandeep Gaikwad 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: 20240327230
    Abstract: The present disclosure provides a separator system for performing separation and dehydroxylation of fumed silica particles. The separator system includes a first inlet, a second inlet, a main body, a first outlet and a second outlet. The first inlet collects a primary feed of fumed silica particles from a gaseous stream into a double entry cyclone. The second inlet collects a secondary feed of chlorine gas into the double entry cyclone. The main body of the double entry cyclone is utilized in treating the primary feed and the secondary feed along with heat inside the double entry cyclone. Furthermore, the first outlet is utilized for releasing the dehydrated fumed silica particles and the second outlet is utilized for releasing the water molecules and other gases.
    Type: Application
    Filed: June 4, 2024
    Publication date: October 3, 2024
    Inventors: SANDEEP GAIKWAD, SHIVI DIXIT, BADRI GOMATAM
  • Publication number: 20240327267
    Abstract: The present disclosure relates to a method and an extrusion apparatus (100, 200) to manufacture a soot preform (130). The extrusion apparatus (100 and 200) includes a feed-hopper (104) to feed silica slurry (102) which is pushed within the barrel (106), an iris frame (116) exhibiting a variable diameter to control a diameter of the soot preform (130), drying furnace (118), debinding furnace (122) eliminates moisture and one or more stabilized binders in the soot preform (130) to obtain a glass preform (138) from which an optical fiber (142) is drawn.
    Type: Application
    Filed: September 20, 2023
    Publication date: October 3, 2024
    Inventors: Debangshu Debnath, SAIKISHORE CHADARAM, SANDEEP GAIKWAD, SUDHAKAR REDDY
  • Patent number: 11912604
    Abstract: The present disclosure provides a method for fabrication of a glass preform. The method includes production of soot particles in a combustion chamber using a precursor material. The heating of the precursor material produces the soot particles along with one or more impurities. In addition, the method includes agglomeration of the soot particles. Further, the method includes separation of the soot particles from the one or more impurities. Also, the separation of the soot particles is performed in a cyclone separator. Furthermore, the method includes collection of the soot particles. Also, the soot particles are compacted with facilitation of a preform compaction chamber. Also, the compacted preform is sintered with facilitation of a sintering furnace. The compaction of the soot particles followed by sintering results in formation of the glass preform.
    Type: Grant
    Filed: August 13, 2020
    Date of Patent: February 27, 2024
    Inventors: Sandeep Gaikwad, Badri Gomatam, Anand Pandey
  • Patent number: 11733459
    Abstract: The present disclosure provides a method for modification of surface of an initial optical fiber preform. The initial optical fiber preform is manufactured using at least one preform manufacturing process. The surface of the initial optical fiber preform is treated with 50-70 liters of chlorine per square meter of the surface of the initial optical fiber preform. The surface of the initial optical fiber preform is flame polished using a flame polishing module. The treatment of the surface of the initial optical fiber preform with chlorine and flame polishing of the surface of the initial optical fiber preform collectively converts the initial optical fiber preform into a modified optical fiber preform.
    Type: Grant
    Filed: February 26, 2019
    Date of Patent: August 22, 2023
    Inventors: Pramod Watekar, Annesha Maity, Manoj Mittal, Sandeep Gaikwad, Sham Nagarkar, Bhalchandra Pathak, Sathis Ram
  • Patent number: 11236006
    Abstract: The present disclosure provides a method for fabrication of an optical fibre soot preform. The method includes production of silicon dioxide particles along with waste particulates. The silicon dioxide particles are produced using a precursor material in a combustion chamber. In addition, the method includes cooling of the silicon dioxide particles. Further, the method includes agglomeration of the silicon dioxide particles. Furthermore, the method includes separation of the waste particulates from the silicon dioxide particles. Moreover, the method includes dehydration of the silicon dioxide particles. Also, the method includes compaction of the silicon dioxide particles. The compaction of the silicon dioxide particles facilitates fabrication of the optical fibre soot preform.
    Type: Grant
    Filed: August 13, 2020
    Date of Patent: February 1, 2022
    Assignee: STERLITE TECHNOLOGIES LIMITED
    Inventors: Sandeep Gaikwad, Badri Gomatam, Anand Pandey
  • Patent number: 10955612
    Abstract: Embodiments describe an optical fiber that includes a core. The core has high compressive stress. The compressive stress of the core is in a range of about 20 to 60 MPa. The optical fiber further includes a cladding. The cladding is divided into a first cladding layer and a second cladding layer. The second cladding layer has a high residual stress. The high residual stress of the second cladding layer is in a range of about 20 to 60 MPa. The optical fiber enables reduction of particle related breaks. Further, the optical fiber has elevated LLT strength. The LLT strength is about 6 Kg. The optical fiber has high proof test yield. Furthermore, the optical fiber is highly sensitive to micro-bending of the optical fiber.
    Type: Grant
    Filed: February 26, 2019
    Date of Patent: March 23, 2021
    Assignee: Sterlite Technologies Limited
    Inventors: Pramod Watekar, Annesha Maity, Manoj Mittal, Sandeep Gaikwad, Sham Nagarkar, Bhalchandra Pathak, Sathis Ram
  • Publication number: 20210047225
    Abstract: The present disclosure provides a method for manufacturing of an optical fiber preform. The method includes a first step of compacting silica particles using a pressing die and punching machine. The silica particles are loaded into a cavity of the pressing die surrounding a cylindrical rod. The silica particles are compacted to form compact object with a predefined shape. The method includes another step of sintering the compacted object with the cylindrical rod to form the optical fiber preform. The sintering of the compact object is performed in a gaseous environment. The method facilitates the manufacturing of the optical fiber preform that is cone free for the reduction of material loss during manufacturing of the optical fiber preform.
    Type: Application
    Filed: April 15, 2020
    Publication date: February 18, 2021
    Inventors: Sandeep Gaikwad, Saurabh Kapoor, Badri Gomatam
  • Publication number: 20210047223
    Abstract: The present disclosure provides a method for fabrication of a glass preform. The method includes production of soot particles in a combustion chamber using a precursor material. The heating of the precursor material produces the soot particles along with one or more impurities. In addition, the method includes agglomeration of the soot particles. Further, the method includes separation of the soot particles from the one or more impurities. Also, the separation of the soot particles is performed in a cyclone separator. Furthermore, the method includes collection of the soot particles. Also, the soot particles are compacted with facilitation of a preform compaction chamber. Also, the compacted preform is sintered with facilitation of a sintering furnace. The compaction of the soot particles followed by sintering results in formation of the glass preform.
    Type: Application
    Filed: August 13, 2020
    Publication date: February 18, 2021
    Inventors: Sandeep Gaikwad, Badri Gomatam, Anand Pandey
  • Publication number: 20210047189
    Abstract: The present disclosure provides a separator system for performing separation and dehydroxylation of fumed silica particles. The separator system includes a first inlet, a second inlet, a main body, a first outlet and a second outlet. The first inlet collects a primary feed of fumed silica particles from a gaseous stream into a double entry cyclone. The second inlet collects a secondary feed of chlorine gas into the double entry cyclone. The main body of the double entry cyclone is utilized in treating the primary feed and the secondary feed along with heat inside the double entry cyclone. Furthermore, the first outlet is utilized for releasing the dehydrated fumed silica particles and the second outlet is utilized for releasing the water molecules and other gases.
    Type: Application
    Filed: April 15, 2020
    Publication date: February 18, 2021
    Inventors: Sandeep Gaikwad, Shivi Dixit, Badri Gomatam
  • Publication number: 20210047226
    Abstract: The present disclosure provides a method for fabrication of an optical fibre soot preform. The method includes production of silicon dioxide particles along with waste particulates. The silicon dioxide particles are produced using a precursor material in a combustion chamber. In addition, the method includes cooling of the silicon dioxide particles. Further, the method includes agglomeration of the silicon dioxide particles. Furthermore, the method includes separation of the waste particulates from the silicon dioxide particles. Moreover, the method includes dehydration of the silicon dioxide particles. Also, the method includes compaction of the silicon dioxide particles. The compaction of the silicon dioxide particles facilitates fabrication of the optical fibre soot preform.
    Type: Application
    Filed: August 13, 2020
    Publication date: February 18, 2021
    Inventors: Sandeep Gaikwad, Badri Gomatam, Anand Pandey
  • Publication number: 20210047190
    Abstract: The present disclosure provides a system for generating fumed silica particles for manufacturing of an optical fiber preform. The system includes a generator and a plurality of inlets connected with the generator. The generator includes a plurality of burners. The plurality of inlets include a first inlet, a second inlet, a third inlet and a fourth inlet. The first inlet provides passage for flow of a precursor material to the generator. The second inlet provides passage for flow of a first gas to the generator. The third inlet provides passage for flow of a second gas to the generator. The fourth inlet provides passage for flow of a carrier gas to the generator. The plurality of burners enables a chemical reaction between the precursor material, the first gas and the second gas that facilitates the generation of the fumed silica particles.
    Type: Application
    Filed: April 15, 2020
    Publication date: February 18, 2021
    Inventors: Sandeep Gaikwad, Ranjith Balakrishnan, Badri Gomatam
  • Publication number: 20200209475
    Abstract: The present disclosure provides a method for modification of surface of an initial optical fiber preform. The initial optical fiber preform is manufactured using at least one preform manufacturing process. The surface of the initial optical fiber preform is treated with 50-70 liters of chlorine per square meter of the surface of the initial optical fiber preform. The surface of the initial optical fiber preform is flame polished using a flame polishing module. The treatment of the surface of the initial optical fiber preform with chlorine and flame polishing of the surface of the initial optical fiber preform collectively converts the initial optical fiber preform into a modified optical fiber preform.
    Type: Application
    Filed: February 26, 2019
    Publication date: July 2, 2020
    Inventors: Pramod Watekar, Annesha Maity, Manoj Mittal, Sandeep Gaikwad, Sham Nagarkar, Bhalchandra Pathak, Sathis Ram
  • Publication number: 20200209469
    Abstract: The present disclosure provides an optical fiber. The optical fiber includes a core. The core has high compressive stress. The compressive stress of the core is in a range of about 20 to 60 MPa. The optical fiber includes a cladding. The cladding is divided into a first cladding layer and a second cladding layer. The second cladding layer has a high residual stress. The high residual stress of the second cladding layer is in a range of about 20 to 60 MPa. The optical fiber enables reduction of particle related breaks. Further, the optical fiber has elevated LLT strength. The LLT strength is about 6 Kg. The optical fiber has high proof test yield. Furthermore, the optical fiber is highly sensitive to micro-bending of the optical fiber.
    Type: Application
    Filed: February 26, 2019
    Publication date: July 2, 2020
    Inventors: Pramod Watekar, Annesha Maity, Manoj Mittal, Sandeep Gaikwad, Sham Nagarkar, Bhalchandra Pathak, Sathis Ram