Patents by Inventor Saumyadeep Jana
Saumyadeep Jana 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: 20230088412Abstract: A shear assisted extrusion process for producing cladded materials wherein a cladding material and a material to be cladded are placed in sequence with the cladded material positioned to contact a rotating scroll face first and the material to be cladded second. The two materials are fed through a shear assisted extrusion device at a preselected feed rate and impacted by a rotating scroll face to generate a cladded extrusion product. This process allows for increased through wall strength and decreases the brittleness in formed structures as compared to the prior art.Type: ApplicationFiled: November 9, 2022Publication date: March 23, 2023Applicant: Battelle Memorial InstituteInventors: Vineet V. Joshi, Glenn J. Grant, Curt A. Lavender, Scott A. Whalen, Saumyadeep Jana, David Catalini, Jens T. Darsell
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Patent number: 11517952Abstract: A shear assisted extrusion process for producing cladded materials wherein a cladding material and a material to be cladded are placed in sequence with the cladded material positioned to contact a rotating scroll face first and the material to be cladded second. The two materials are fed through a shear assisted extrusion device at a preselected feed rate and impacted by a rotating scroll face to generate a cladded extrusion product. This process allows for increased through wall strength and decreases the brittleness in formed structures as compared to the prior art.Type: GrantFiled: June 30, 2020Date of Patent: December 6, 2022Assignee: Battelle Memorial InstituteInventors: Vineet V. Joshi, Glenn J. Grant, Curt A. Lavender, Scott A. Whalen, Saumyadeep Jana, David Catalini, Jens T. Darsell
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Patent number: 11028470Abstract: A method for heat treating metal materials by passing electrical current through a metallic workpiece to heat the workpiece via Joule heating to a preselected temperature for a preselected period of time, based upon the formula I2×R×t, wherein I is current, R is resistance and t is time. The current may be a direct or an alternating one. Various configurations of the method are envisioned wherein multiple current inputs and outputs are attached to the metal material so as to selectively heat specific portions of the piece including irregular shapes and differing diameters.Type: GrantFiled: October 27, 2017Date of Patent: June 8, 2021Assignee: BATTELLE MEMORIAL INSTITUTEInventors: Aashish Rohatgi, Saumyadeep Jana
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Publication number: 20210023596Abstract: A shear assisted extrusion process for producing cladded materials wherein a cladding material and a material to be cladded are placed in sequence with the cladded material positioned to contact a rotating scroll face first and the material to be cladded second. The two materials are fed through a shear assisted extrusion device at a preselected feed rate and impacted by a rotating scroll face to generate a cladded extrusion product. This process allows for increased through wall strength and decreases the brittleness in formed structures as compared to the prior art.Type: ApplicationFiled: June 30, 2020Publication date: January 28, 2021Applicant: Battelle Memorial InstituteInventors: Vineet V. Joshi, Glenn J. Grant, Curt A. Lavender, Scott A. Whalen, Saumyadeep Jana, David Catalini, Jens T. Darsell
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Patent number: 10695811Abstract: A shear assisted extrusion process for producing cladded materials wherein a cladding material and a material to be cladded are placed in sequence with the cladded material positioned to contact a rotating scroll face first and the material to be cladded second. The two materials are fed through a shear assisted extrusion device at a preselected feed rate and impacted by a rotating scroll face to generate a cladded extrusion product. This process allows for increased through wall strength and decreases the brittleness in formed structures as compared to the prior art.Type: GrantFiled: February 17, 2018Date of Patent: June 30, 2020Assignee: Battelle Memorial InstituteInventors: Vineet V. Joshi, Glenn J. Grant, Curt A. Lavender, Scott A. Whalen, Saumyadeep Jana, David Catalini, Jens T. Darsell
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Patent number: 10189063Abstract: Devices and processes for performing shear-assisted extrusion include a rotatable extrusion die with a scroll face configured to draw plasticized material from an outer edge of a billet generally perpendicularly toward an extrusion orifice while the extrusion die assembly simultaneously applies a rotational shear and axial extrusion force to the billet.Type: GrantFiled: November 14, 2016Date of Patent: January 29, 2019Assignee: BATTELLE MEMORIAL INSTITUTEInventors: Curtis A. Lavender, Vineet V. Joshi, Glenn J. Grant, Saumyadeep Jana, Scott A. Whalen, Jens T. Darsell, Nicole R. Overman
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Patent number: 10109418Abstract: A die tool and process are described that provide friction consolidation fabrication and friction consolidation extrusion fabrication products including permanent magnets, and other extrusion and non-extrusion structures. The present invention overcomes previous particle size, texture, homogeneity and density limitations in conventional metallurgy processes.Type: GrantFiled: May 2, 2014Date of Patent: October 23, 2018Assignee: BATTELLE MEMORIAL INSTITUTEInventors: Jun Cui, Glenn J. Grant, Saumyadeep Jana, Yuri Hovanski, Curt A. Lavender
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Publication number: 20180250727Abstract: A shear assisted extrusion process for producing cladded materials wherein a cladding material and a material to be cladded are placed in sequence with the cladded material positioned to contact a rotating scroll face first and the material to be cladded second. The two materials are fed through a shear assisted extrusion device at a preselected feed rate and impacted by a rotating scroll face to generate a cladded extrusion product. This process allows for increased through wall strength and decreases the brittleness in formed structures as compared to the prior art.Type: ApplicationFiled: February 17, 2018Publication date: September 6, 2018Applicant: BATTELLE MEMORIAL INSTITUTEInventors: Vineet V. Joshi, Glenn J. Grant, Curt A. Lavender, Scott A. Whalen, Saumyadeep Jana, David Catalini, Jens T. Darsell
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Publication number: 20180216216Abstract: A method for heat treating metal materials by passing electrical current through a metallic workpiece to heat the workpiece via Joule heating to a preselected temperature for a preselected period of time, based upon the formula I2×R×t, wherein I is current, R is resistance and t is time. The current may be a direct or an alternating one. Various configurations of the method are envisioned wherein multiple current inputs and outputs are attached to the metal material so as to selectively heat specific portions of the piece including irregular shapes and differing diameters.Type: ApplicationFiled: October 27, 2017Publication date: August 2, 2018Applicant: BATTELLE MEMORIAL INSTITUTEInventors: Aashish Rohatgi, Saumyadeep Jana
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Publication number: 20170056947Abstract: Devices and processes for performing shear-assisted extrusion include a rotatable extrusion die with a scroll face configured to draw plasticized material from an outer edge of a billet generally perpendicularly toward an extrusion orifice while the extrusion die assembly simultaneously applies a rotational shear and axial extrusion force to the billet.Type: ApplicationFiled: November 14, 2016Publication date: March 2, 2017Applicant: BATTELLE MEMORIAL INSTITUTEInventors: Curtis A. Lavender, Vineet V. Joshi, Glenn J. Grant, Saumyadeep Jana, Scott A. Whalen, Jens T. Darsell, Nicole R. Overman
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Publication number: 20140328959Abstract: A die tool and process are described that provide friction consolidation fabrication and friction consolidation extrusion fabrication products including permanent magnets, and other extrusion and non-extrusion structures. The present invention overcomes previous particle size, texture, homogeneity and density limitations in conventional metallurgy processes.Type: ApplicationFiled: May 2, 2014Publication date: November 6, 2014Applicant: BATTELLE MEMORIAL INSTITUTEInventors: Jun Cui, Glenn J. Grant, Saumyadeep Jana, Yuri Hovanski, Curt A. Lavender
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Publication number: 20140328710Abstract: A die tool and process are described that provide friction consolidation fabrication and friction consolidation extrusion fabrication products including permanent magnets, and other extrusion and non-extrusion structures. The present invention overcomes previous particle size, texture, homogeneity and density limitations in conventional metallurgy processes.Type: ApplicationFiled: May 2, 2014Publication date: November 6, 2014Applicant: BATTELLE MEMORIAL INSTITUTEInventors: Jun Cui, Glenn J. Grant, Saumyadeep Jana, Yuri Hovanski, Curt A. Lavender
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Publication number: 20140283574Abstract: An extrusion apparatus and process are disclosed that produce high-performance extrusion structures. The extrusion apparatus includes a shear tool that applies a rotational shear force and an axial extrusion force to the face of a billet material that plasticizes the billet material. Plasticized material is extruded through an extrusion die along the length of the inner bore of the shear tool which yields hollow and solid extrusion structures. The process refines the microstructures of the extrusion structures and extrusion materials.Type: ApplicationFiled: March 21, 2014Publication date: September 25, 2014Applicant: BATTELLE MEMORIAL INSTITUTEInventors: Curtis A. Lavender, Vineet V. Joshi, Dean M. Paxton, Saumyadeep Jana, Glenn J. Grant, Darrell R. Herling, Richard W. Davies
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Patent number: 8434661Abstract: A friction stir welding tool and process for lap welding dissimilar materials are detailed. The invention includes a cutter scribe that penetrates and extrudes a first material of a lap weld stack to a preselected depth and further cuts a second material to provide a beneficial geometry defined by a plurality of mechanically interlocking features. The tool backfills the interlocking features generating a lap weld across the length of the interface between the dissimilar materials that enhances the shear strength of the lap weld.Type: GrantFiled: June 14, 2012Date of Patent: May 7, 2013Assignee: Battelle Memorial InstituteInventors: Yuri Hovanski, Glenn J. Grant, Saumyadeep Jana, Karl F. Mattlin
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Publication number: 20120273113Abstract: A friction stir welding tool and process for lap welding dissimilar materials are detailed. The invention includes a cutter scribe that penetrates and extrudes a first material of a lap weld stack to a preselected depth and further cuts a second material to provide a beneficial geometry defined by a plurality of mechanically interlocking features. The tool backfills the interlocking features generating a lap weld across the length of the interface between the dissimilar materials that enhances the shear strength of the lap weld.Type: ApplicationFiled: June 14, 2012Publication date: November 1, 2012Applicant: BATTELLE MEMORIAL INSTITUTEInventors: Yuri Hovanski, Glenn J. Grant, Saumyadeep Jana, Karl F. Mattlin
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Publication number: 20110309131Abstract: A friction stir welding tool and process for lap welding dissimilar materials are detailed. The invention includes a cutter scribe that penetrates and extrudes a first material of a lap weld stack to a preselected depth and further cuts a second material to provide a beneficial geometry defined by a plurality of mechanically interlocking features. The tool backfills the interlocking features generating a lap weld across the length of the interface between the dissimilar materials that enhances the shear strength of the lap weld.Type: ApplicationFiled: June 18, 2010Publication date: December 22, 2011Applicant: BATTELLE MEMORIAL INSTITUTEInventors: Yuri Hovanski, Glenn J. Grant, Saumyadeep Jana, Karl F. Mattlin