Patents by Inventor Ashok Bhatnagar
Ashok Bhatnagar 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).
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Publication number: 20230160665Abstract: Ballistic resistant composite materials having high positive buoyancy in water are provided. More particularly, provided are foam-free, buoyant composite materials fabricated using dry processing techniques. The materials comprise fibrous plies that are partially coated with a particulate binder that is thermopressed to transform a portion of the binder into raised, discontinuous patches bonded to fiber/tape surfaces, while another portion of the particulate binder remains on the fibers/tapes as unmelted particles. The presence of the unmelted binder particles maintains empty spaces within the composite to materials which increases the positive buoyancy of the composites in water.Type: ApplicationFiled: January 19, 2023Publication date: May 25, 2023Applicant: HONEYWELL INTERNATIONAL INC.Inventors: ASHOK BHATNAGAR, TYLER BARTELT, HENRY GERARD ARDIFF, GARY KRATZER, DAVID A. HURST, LORI L. WAGNER
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Patent number: 11561069Abstract: Ballistic resistant composite materials having high positive buoyancy in water are provided. More particularly, provided are foam-free, buoyant composite materials fabricated using dry processing techniques. The materials comprise fibrous plies that are partially coated with a particulate binder that is thermopressed to transform a portion of the binder into raised, discontinuous patches bonded to fiber/tape surfaces, while another portion of the particulate binder remains on the fibers/tapes as unmelted particles. The presence of the unmelted binder particles maintains empty spaces within the composite materials which increases the positive buoyancy of the composites in water.Type: GrantFiled: March 28, 2020Date of Patent: January 24, 2023Assignee: HONEYWELL INTERNATIONAL INC.Inventors: Ashok Bhatnagar, Tyler Bartelt, Henry Gerard Ardiff, Gary Kratzer, David A. Hurst, Lori L. Wagner
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Patent number: 11530513Abstract: A method for improving the translation efficiency of fiber strength into composite strength is provided. A single unidirectional tape, single unidirectional fiber web or a stack of unidirectional web/unidirectional tape plies formed from partially oriented fibers/tapes is primed under mild conditions followed by subjecting the primed plies to an axial extension stress in the axial fiber direction of each fiber ply by passage through a compression apparatus. The axial extension stress extends the fibers, strengthening them, while also compacting the plies together and thereby forming a composite having improved strength. Production yield is improved by avoiding maximal fiber stretching and thereby avoiding typical manufacturing loss, and low weight composite armor having increased strength is achieved.Type: GrantFiled: July 12, 2019Date of Patent: December 20, 2022Assignee: HONEYWELL INTERNATIONAL INC.Inventors: Ashok Bhatnagar, David A. Hurst, Charles Arnett, Gary Kratzer, Henry Gerard Ardiff
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Patent number: 11499802Abstract: This technology relates materials that are stab, spike and ballistic resistant and to stab, spike and ballistic resistant composite articles incorporating uniaxially oriented, non-woven fabrics. A fabric layer having a non-uniform areal density is formed having thick areas and thin areas, the thick areas having a greater filament/tape concentration compared to the thin areas. In said thick areas, agglomerated tapes/filaments will protrude from the fabric layer surface. Additional layers are then adjoined with the non-uniform layer to form a panel that has stab, spike and ballistic resistance, with protrusions at least partially spacing the additional layers from full, direct contact with the surface of the non-uniform fabric layer to thereby enhance flexibility and stab, spike and ballistic resistance of the whole.Type: GrantFiled: October 17, 2018Date of Patent: November 15, 2022Assignee: HONEYWELL INTERNATIONAL INC.Inventors: Ashok Bhatnagar, Gregory A. Davis, David Andrew Steenkamer, Lori L. Wagner
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Patent number: 11440287Abstract: Multi-ply, hybrid composite materials useful in the formation of thin walled, hollow, tubular articles having improved resistance to hoop stress. Two different, single-ply pre-pregs are impregnated with binders and laminated together with the fibers of the layers oriented at a bias relative to each other. The hybrid composite is rolled into a tubular article having excellent strength uniformity along the full length of the tubular article.Type: GrantFiled: May 23, 2019Date of Patent: September 13, 2022Assignee: HONEYWELL INTERNATIONAL INC.Inventors: Gary Kratzer, David A. Hurst, Lori L. Wagner, Ashok Bhatnagar
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Patent number: 11214037Abstract: Low porosity fibrous materials, articles formed therefrom and processes for their formation. Multiple plies of high tenacity, multifilament elongate bodies are optionally stitched together and pressed as a set without being laminated, adhered or thermally fused to each other. Pressing spreads the component filaments of the elongate bodies, forcing the filaments to occupy spaces between adjacent fibers and thereby reducing porosity of the complete multi-ply material.Type: GrantFiled: April 15, 2019Date of Patent: January 4, 2022Assignee: HONEYWELL INTERNATIONAL INC.Inventors: Ashok Bhatnagar, Huy Xuan Nguyen, Lori L. Wagner
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Patent number: 11053617Abstract: Woven fabrics are formed from high tenacity fibers or tapes that are loosely interwoven with adhesive coated filaments, to composite articles formed therefrom, and to a continuous process for forming the composite articles.Type: GrantFiled: December 2, 2019Date of Patent: July 6, 2021Assignee: HONEYWELL INTERNATIONAL INC.Inventors: Thomas Tam, Mark Benjamin Boone, Ashok Bhatnagar
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Publication number: 20200354886Abstract: A method for improving the translation efficiency of fiber strength into composite strength is provided. A single unidirectional tape, single unidirectional fiber web or a stack of unidirectional web/unidirectional tape plies formed from partially oriented fibers/tapes is primed under mild conditions followed by subjecting the primed plies to an axial extension stress in the axial fiber direction of each fiber ply by passage through a compression apparatus. The axial extension stress extends the fibers, strengthening them, while also compacting the plies together and thereby forming a composite having improved strength. Production yield is improved by avoiding maximal fiber stretching and thereby avoiding typical manufacturing loss, and low weight composite armor having increased strength is achieved.Type: ApplicationFiled: July 12, 2019Publication date: November 12, 2020Applicant: HONEYWELL INTERNATIONAL INC.Inventors: ASHOK BHATNAGAR, DAVID A. HURST, CHARLES ARNETT, GARY KRATZER, HENRY GERARD ARDIFF
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Publication number: 20200284552Abstract: Ballistic resistant composite materials having high positive buoyancy in water are provided. More particularly, provided are foam-free, buoyant composite materials fabricated using dry processing techniques. The materials comprise fibrous plies that are partially coated with a particulate binder that is thermopressed to transform a portion of the binder into raised, discontinuous patches bonded to fiber/tape surfaces, while another portion of the particulate binder remains on the fibers/tapes as unmelted particles. The presence of the unmelted binder particles maintains empty spaces within the composite materials which increases the positive buoyancy of the composites in water.Type: ApplicationFiled: March 28, 2020Publication date: September 10, 2020Applicant: HONEYWELL INTERNATIONAL INC.Inventors: ASHOK BHATNAGAR, TYLER BARTELT, HENRY GERARD ARDIFF, GARY KRATZER, DAVID A. HURST, LORI L. WAGNER
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Publication number: 20200255986Abstract: Woven fabrics are formed from high tenacity fibers or tapes that are loosely interwoven with adhesive coated filaments, to composite articles formed therefrom, and to a continuous process for forming the composite articles.Type: ApplicationFiled: December 2, 2019Publication date: August 13, 2020Applicant: HONEYWELL INTERNATIONAL INC.Inventors: THOMAS TAM, MARK BENJAMIN BOONE, ASHOK BHATNAGAR
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Patent number: 10703069Abstract: Dimensionally stable open woven fabrics formed from a plurality of high tenacity warp elongate bodies interwoven and bonded with a plurality of transversely disposed, high tenacity weft elongate bodies, composite articles formed therefrom, and to a continuous process for forming the composite articles.Type: GrantFiled: April 8, 2019Date of Patent: July 7, 2020Assignee: HONEYWELL INTERNATIONAL INC.Inventors: Thomas Tam, Mark Benjamin Boone, Ashok Bhatnagar
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Patent number: 10704866Abstract: Viscoelastic, lightweight composite armor that is resistant to backface deformation, and to a method for evaluating the effectiveness of composite armor in resisting backface deformation. The index of retraction of a composite is determined by evaluating the degree of composite retraction at the site of impact of projectile after movement of the projectile is stopped. The degree of retraction indicates the ability of the composite to resist backface deformation.Type: GrantFiled: August 16, 2017Date of Patent: July 7, 2020Assignee: HONEYWELL INTERNATIONAL INC.Inventors: Ashok Bhatnagar, Gary Kratzer, Charles Arnett, David A. Hurst, Steven Thomas Correale
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Publication number: 20200131675Abstract: Twisted, non-blended hybrid yarns are provided that are suitable for the fabrication of abrasion resistant garments and other textile articles. One or more polyolefin fibers are ply twisted together with one or more non-polyolefin fibers in a manner that utilizes the properties of each fiber type. A plurality of the twisted, non-blended hybrid yarns is then woven or knitted into fabrics, such as twill woven denim, or formed into ropes, such as braided ropes.Type: ApplicationFiled: October 24, 2019Publication date: April 30, 2020Applicant: HONEYWELL INTERNATIONAL INC.Inventors: ASHOK BHATNAGAR, VIKRAM SHARMA
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Patent number: 10605573Abstract: Ballistic resistant composite materials having high positive buoyancy in water are provided. More particularly, provided are foam-free, buoyant composite materials fabricated using dry processing techniques. The materials comprise fibrous plies that are partially coated with a particulate binder that is thermopressed to transform a portion of the binder into raised, discontinuous patches bonded to fiber/tape surfaces, while another portion of the particulate binder remains on the fibers/tapes as unmelted particles. The presence of the unmelted binder particles maintains empty spaces within the composite materials which increases the positive buoyancy of the composites in water.Type: GrantFiled: April 4, 2017Date of Patent: March 31, 2020Assignee: HONEYWELL INTERNATIONAL INC.Inventors: Ashok Bhatnagar, Tyler Bartelt, Henry Gerard Ardiff, Gary Kratzer, David A. Hurst, Lori L. Wagner
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Publication number: 20190375185Abstract: Multi-ply, hybrid composite materials useful in the formation of thin walled, hollow, tubular articles having improved resistance to hoop stress. Two different, single-ply pre-pregs are impregnated with binders and laminated together with the fibers of the layers oriented at a bias relative to each other. The hybrid composite is rolled into a tubular article having excellent strength uniformity along the full length of the tubular article.Type: ApplicationFiled: May 23, 2019Publication date: December 12, 2019Applicant: HONEYWELL INTERNATIONAL INC.Inventors: GARY KRATZER, DAVID A. HURST, LORI L. WAGNER, ASHOK BHATNAGAR
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Patent number: 10494746Abstract: Woven fabrics are formed from high tenacity fibers or tapes that are loosely interwoven with adhesive coated filaments, to composite articles formed therefrom, and to a continuous process for forming the composite articles.Type: GrantFiled: June 6, 2018Date of Patent: December 3, 2019Assignee: HONEYWELL INTERNATIONAL INC.Inventors: Thomas Tam, Mark Benjamin Boone, Ashok Bhatnagar
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Patent number: 10443160Abstract: Lightweight, breathable, non-woven fibrous materials and composite articles incorporating the same are provided. Composite articles are formed by merging an open, non-woven grid formed from high tenacity elongate bodies with at least one substrate, forming an article having excellent tensile strength, excellent breathability and a unique aesthetic appearance.Type: GrantFiled: June 13, 2017Date of Patent: October 15, 2019Assignee: HONEYWELL INTERNATIONAL INC.Inventors: Brian Duane Arvidson, Henry Gerard Ardiff, Ashok Bhatnagar, Tamara L. Ehle, Shari E. Litow, Brian Waring, Mark Benjamin Boone, Thomas Tam
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Publication number: 20190240952Abstract: Low porosity fibrous materials, articles formed therefrom and processes for their formation. Multiple plies of high tenacity, multifilament elongate bodies are optionally stitched together and pressed as a set without being laminated, adhered or thermally fused to each other. Pressing spreads the component filaments of the elongate bodies, forcing the filaments to occupy spaces between adjacent fibers and thereby reducing porosity of the complete multi-ply material.Type: ApplicationFiled: April 15, 2019Publication date: August 8, 2019Applicant: HONEYWELL INTERNATIONAL INC.Inventors: ASHOK BHATNAGAR, HUY XUAN NGUYEN, LORI L. WAGNER
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Publication number: 20190232609Abstract: Dimensionally stable open woven fabrics formed from a plurality of high tenacity warp elongate bodies interwoven and bonded with a plurality of transversely disposed, high tenacity weft elongate bodies, composite articles formed therefrom, and to a continuous process for forming the composite articles.Type: ApplicationFiled: April 8, 2019Publication date: August 1, 2019Applicant: HONEYWELL INTERNATIONAL INC.Inventors: THOMAS TAM, MARK BENJAMIN BOONE, ASHOK BHATNAGAR
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Publication number: 20190128648Abstract: This technology relates materials that are stab, spike and ballistic resistant and to stab, spike and ballistic resistant composite articles incorporating uniaxially oriented, non-woven fabrics. A fabric layer having a non-uniform areal density is formed having thick areas and thin areas, the thick areas having a greater filament/tape concentration compared to the thin areas. In said thick areas, agglomerated tapes/filaments will protrude from the fabric layer surface. Additional layers are then adjoined with the non-uniform layer to form a panel that has stab, spike and ballistic resistance, with protrusions at least partially spacing the additional layers from full, direct contact with the surface of the non-uniform fabric layer to thereby enhance flexibility and stab, spike and ballistic resistance of the whole.Type: ApplicationFiled: October 17, 2018Publication date: May 2, 2019Applicant: HONEYWELL INTERNATIONAL INC.Inventors: ASHOK BHATNAGAR, GREGORY A. DAVIS, DAVID ANDREW STEENKAMER, LORI L. WAGNER