Patents by Inventor Mehdi Mojdeh
Mehdi Mojdeh 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: 20210077225Abstract: The present disclosure relates to ornamental indicia carrier and method of producing the same. In some embodiments, the ornamental indicia carrier comprises an ultraviolet light (“UV”) cured ink printed on a thin flexible film and combined with an adhesive layer. The ornamental indicia carrier is capable of enduring the conditions inside the mouth for an extended period of time and can be used in conjunction with a dental appliance.Type: ApplicationFiled: September 28, 2020Publication date: March 18, 2021Applicant: ALIGN TECHNOLOGY, INC.Inventors: Sriram VENKATASANTHANAM, Ramin HEYDARPOUR, John Y. MORTON, Jun SATO, Michael Christopher COLE, Mehdi MOJDEH, Prashanth VANCHY, Natalia Lysaya POWERS, Sibel NARIN, Jeremy RILEY
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Publication number: 20210078357Abstract: The present disclosure relates to ornamental indicia carrier and method of producing the same. In some embodiments, the ornamental indicia carrier comprises an ultraviolet light (“UV”) cured ink printed on a thin flexible film and combined with an adhesive layer. The ornamental indicia carrier is capable of enduring the conditions inside the mouth for an extended period of time and can be used in conjunction with a dental appliance.Type: ApplicationFiled: August 31, 2020Publication date: March 18, 2021Applicant: ALIGN TECHNOLOGY, INC.Inventors: Sriram VENKATASANTHANAM, Ramin HEYDARPOUR, John Y. MORTON, Jun SATO, Michael Christopher COLE, Mehdi MOJDEH, Prashanth VANCHY, Natalia Lysaya POWERS, Sibel NARIN, Jeremy RILEY
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Publication number: 20200316856Abstract: A method of manufacturing a three-dimensional (3D) object may include fabricating a support structure and fabricating the 3D object on the support structure, wherein the support structure contacts the 3D object at a support region of the 3D object. The method further includes overcuring the 3D object at an overcure region of the 3D object, wherein the overcure region is distinct from the support region, and removing the support structure from the 3D object. After removal of the support structure, a support mark remains on the 3D printed object where the support structure had contacted the 3D object, wherein the overcure region of the 3D object projects past the support mark.Type: ApplicationFiled: April 1, 2020Publication date: October 8, 2020Inventors: Mehdi Mojdeh, Brett E. Kelly, Shiva P. Sambu
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Publication number: 20200130237Abstract: Embodiments relate to automating removal of an untrimmed shell from a mold. In one embodiment, a shell removal device includes a body and a platform disposed within the body. The platform is configured to secure a mold that has an untrimmed shell formed over the mold. The shell removal device further includes a cover configured to secure the untrimmed shell to an upper surface of one or more sidewalls of the body and provide a seal between a lower surface of the untrimmed shell and the upper surface of the one or more sidewalls of the body. The shell removal device may include a media inlet in the body to permit pressurized media into the interior of the body to cause a pressure differential between an upper surface of the untrimmed shell and the lower surface of the untrimmed shell to cause the untrimmed shell to release from the mold.Type: ApplicationFiled: October 24, 2019Publication date: April 30, 2020Inventors: Mehdi Mojdeh, Shiva P. Sambu, Dennis McNamara
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Publication number: 20200086553Abstract: A method of three-dimensional (3D) printing includes heating a photo-curable material and extruding the photo-curable material from a nozzle to form a first layer of an object according to a digital file, wherein the first layer has a first shape specified by the digital file, and wherein the first shape has a first minimum line width based on a diameter of the nozzle. The method further includes directing a light beam onto the first layer according to the digital file or an additional digital file to cure a portion of the first layer, wherein the cured portion of the first layer has a second shape, wherein the second shape may comprise features that are smaller than the first shape.Type: ApplicationFiled: September 13, 2019Publication date: March 19, 2020Inventors: Mehdi Mojdeh, Michael Christopher Cole, Peter Dorfinger, Shiva P. Sambu
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Patent number: 8465689Abstract: A solid imaging apparatus is provided that includes a replaceable cartridge containing a source of build material and an extendable and retractable flexible transport film for transporting the build material layer-by-layer from the cartridge to the surface of a build in an image plane. An operator using the device needs merely to remove a spent cartridge and replace it with a fresh cartridge to continue solid imaging virtually uninterrupted. The apparatus also includes the capability of withdrawing and inserting an imager without the operator having to perform a separate alignment step. A brush attached to the transport film and forming part of the cartridge provides for intra-layer removal of excess uncured build material. If desired, the apparatus can produce a fully reacted build. A high intensity UV source cures the build between layers. An injection molded build pad is designed to hold a build in an inverted position for improving the build.Type: GrantFiled: July 5, 2011Date of Patent: June 18, 2013Assignee: 3D Systems, Inc.Inventors: Charles R. Sperry, Dennis F. McNamara, Jr., Suzanne M. Scott, Charles W. Hull, Mehdi Mojdeh
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Patent number: 8105066Abstract: A solid imaging apparatus is provided that includes a replaceable cartridge containing a source of build material and an extendable and retractable flexible transport film for transporting the build material layer-by-layer from the cartridge to the surface of a build in an image plane. An operator using the device needs merely to remove a spent cartridge and replace it with a fresh cartridge to continue solid imaging virtually uninterrupted. The apparatus also includes the capability of withdrawing and inserting an imager without the operator having to perform a separate alignment step. A brush attached to the transport film and forming part of the cartridge provides for intra-layer removal of excess uncured build material. If desired, the apparatus can produce a fully reacted build. A high intensity UV source cures the build between layers. An injection molded build pad is designed to hold a build in an inverted position for improving the build.Type: GrantFiled: September 17, 2007Date of Patent: January 31, 2012Assignee: 3D Systems, Inc.Inventors: Charles R. Sperry, Dennis F. McNamara, Jr., Suzanne M. Scott, Jason A. Rittenhour, Charles W Hull, Mehdi Mojdeh
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Publication number: 20110272857Abstract: A solid imaging apparatus is provided that includes a replaceable cartridge containing a source of build material and an extendable and retractable flexible transport film for transporting the build material layer-by-layer from the cartridge to the surface of a build in an image plane. An operator using the device needs merely to remove a spent cartridge and replace it with a fresh cartridge to continue solid imaging virtually uninterrupted. The apparatus also includes the capability of withdrawing and inserting an imager without the operator having to perform a separate alignment step. A brush attached to the transport film and forming part of the cartridge provides for intra-layer removal of excess uncured build material. If desired, the apparatus can produce a fully reacted build. A high intensity UV source cures the build between layers. An injection molded build pad is designed to hold a build in an inverted position for improving the build.Type: ApplicationFiled: July 5, 2011Publication date: November 10, 2011Inventors: Charles R. Sperry, Dennis F. McNamara, JR., Suzanne M. Scott, Charles W. Hull, Mehdi Mojdeh
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Patent number: 8003039Abstract: A solid imaging apparatus is provided that includes a replaceable cartridge containing a source of build material and an extendable and retractable flexible transport film for transporting the build material layer-by-layer from the cartridge to the surface of a build in an image plane. An operator using the device needs merely to remove a spent cartridge and replace it with a fresh cartridge to continue solid imaging virtually uninterrupted. The apparatus also includes the capability of withdrawing and inserting an imager without the operator having to perform a separate alignment step. A brush attached to the transport film and forming part of the cartridge provides for intra-layer removal of excess uncured build material. If desired, the apparatus can produce a fully reacted build. A high intensity UV source cures the build between layers. An injection molded build pad is designed to hold a build in an inverted position for improving the build.Type: GrantFiled: September 17, 2007Date of Patent: August 23, 2011Assignee: 3D Systems, Inc.Inventors: Charles R. Sperry, Dennis F. McNamara, Jr., Suzanne M. Scott, Charles W. Hull, Mehdi Mojdeh
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Patent number: 7731887Abstract: Solid imaging apparatus and methods for use are disclosed that reduce the amount of uncured solid imaging build material remaining on a completed build object following the completion of the solid imaging build process. The amount of uncured build material is reduced through the use of either an uncoating web that removes excess build material from the build object during the course of the building process or an ink jet source of build material that uses only as much build material as is necessary for the fabrication of the build part. Also disclosed is an imager assembly for use with such a solid imaging apparatus that incorporates two or more individual imagers in an array and accounts for variations in the intensity and alignment of adjacent imagers. The apparatus can be modified for semi-continuous operation and for integrating into a manufacturing operation, if desired.Type: GrantFiled: September 17, 2007Date of Patent: June 8, 2010Assignee: 3D Systems, Inc.Inventors: Charles W. Hull, Jouni Partanen, Ray Soliz, William J. Pappas, Mehdi Mojdeh
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Patent number: 7614866Abstract: A solid imaging apparatus is provided that includes a replaceable cartridge containing a source of build material and an extendable and retractable flexible transport film for transporting the build material layer-by-layer from the cartridge to the surface of a build in an image plane. An operator using the device needs merely to remove a spent cartridge and replace it with a fresh cartridge to continue solid imaging virtually uninterrupted. The apparatus also includes the capability of withdrawing and inserting an imager without the operator having to perform a separate alignment step. A brush attached to the transport film and forming part of the cartridge provides for intra-layer removal of excess uncured build material. If desired, the apparatus can produce a fully reacted build. A high intensity UV source cures the build between layers. An injection molded build pad is designed to hold a build in an inverted position for improving the build.Type: GrantFiled: September 17, 2007Date of Patent: November 10, 2009Assignee: 3D Systems, Inc.Inventors: Charles R. Sperry, Dennis F. McNamara, Jr., Suzanne M. Scott, Charles W. Hull, Jouni Partanen, Mehdi Mojdeh, William J. Pappas, Richard O. Gregory, II
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Publication number: 20080179787Abstract: A solid imaging apparatus is provided that includes a replaceable cartridge containing a source of build material and an extendable and retractable flexible transport film for transporting the build material layer-by-layer from the cartridge to the surface of a build in an image plane. An operator using the device needs merely to remove a spent cartridge and replace it with a fresh cartridge to continue solid imaging virtually uninterrupted. The apparatus also includes the capability of withdrawing and inserting an imager without the operator having to perform a separate alignment step. A brush attached to the transport film and forming part of the cartridge provides for intra-layer removal of excess uncured build material. If desired, the apparatus can produce a fully reacted build. A high intensity UV source cures the build between layers. An injection molded build pad is designed to hold a build in an inverted position for improving the build.Type: ApplicationFiled: September 17, 2007Publication date: July 31, 2008Inventors: Charles R. Sperry, Dennis F. Mcnamara, Suzanne M. Scott, Charles W. Hull, Mehdi Mojdeh
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Publication number: 20080181977Abstract: A solid imaging apparatus is provided that includes a replaceable cartridge containing a source of build material and an extendable and retractable flexible transport film for transporting the build material layer-by-layer from the cartridge to the surface of a build in an image plane. An operator using the device needs merely to remove a spent cartridge and replace it with a fresh cartridge to continue solid imaging virtually uninterrupted. The apparatus also includes the capability of withdrawing and inserting an imager without the operator having to perform a separate alignment step. A brush attached to the transport film and forming part of the cartridge provides for intra-layer removal of excess uncured build material. If desired, the apparatus can produce a fully reacted build. A high intensity UV source cures the build between layers. An injection molded build pad is designed to hold a build in an inverted position for improving the build.Type: ApplicationFiled: September 17, 2007Publication date: July 31, 2008Inventors: Charles R. Sperry, Dennis F. McNamara, Suzanne M. Scott, Charles W. Hull, Mehdi Mojdeh
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Publication number: 20080179786Abstract: A solid imaging apparatus is provided that includes a replaceable cartridge containing a source of build material and an extendable and retractable flexible transport film for transporting the build material layer-by-layer from the cartridge to the surface of a build in an image plane. An operator using the device needs merely to remove a spent cartridge and replace it with a fresh cartridge to continue solid imaging virtually uninterrupted. The apparatus also includes the capability of withdrawing and inserting an imager without the operator having to perform a separate alignment step. A brush attached to the transport film and forming part of the cartridge provides for intra-layer removal of excess uncured build material. If desired, the apparatus can produce a fully reacted build. A high intensity UV source cures the build between layers. An injection molded build pad is designed to hold a build in an inverted position for improving the build.Type: ApplicationFiled: September 17, 2007Publication date: July 31, 2008Inventors: Charles R. Sperry, Dennis F. Mcnamara, Suzanne M. Scott, Jason A. Rittenhour, Charles W. Hull, Mehdi Mojdeh
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Publication number: 20080171284Abstract: Solid imaging apparatus and methods for use are disclosed that reduce the amount of uncured solid imaging build material remaining on a completed build object following the completion of the solid imaging build process. The amount of uncured build material is reduced through the use of either an uncoating web that removes excess build material from the build object during the course of the building process or an ink jet source of build material that uses only as much build material as is necessary for the fabrication of the build part. Also disclosed is an imager assembly for use with such a solid imaging apparatus that incorporates two or more individual imagers in an array and accounts for variations in the intensity and alignment of adjacent imagers. The apparatus can be modified for semi-continuous operation and for integrating into a manufacturing operation, if desired.Type: ApplicationFiled: September 17, 2007Publication date: July 17, 2008Inventors: Charles W. Hull, Jouni Partanen, Ray Soliz, William J. Pappas, Mehdi Mojdeh
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Publication number: 20080170112Abstract: A solid imaging apparatus is provided that includes a replaceable cartridge containing a source of build material and an extendable and retractable flexible transport film for transporting the build material layer-by-layer from the cartridge to the surface of a build in an image plane. An operator using the device needs merely to remove a spent cartridge and replace it with a fresh cartridge to continue solid imaging virtually uninterrupted. The apparatus also includes the capability of withdrawing and inserting an imager without the operator having to perform a separate alignment step. A brush attached to the transport film and forming part of the cartridge provides for intra-layer removal of excess uncured build material. If desired, the apparatus can produce a fully reacted build. A high intensity UV source cures the build between layers. An injection molded build pad is designed to hold a build in an inverted position for improving the build.Type: ApplicationFiled: September 17, 2007Publication date: July 17, 2008Inventors: Charles W. Hull, Charles R. Sperry, Dennis F. McNamara, Suzanne M. Scott, Mehdi Mojdeh
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Publication number: 20080169589Abstract: A solid imaging apparatus is provided that includes a replaceable cartridge containing a source of build material and an extendable and retractable flexible transport film for transporting the build material layer-by-layer from the cartridge to the surface of a build in an image plane. An operator using the device needs merely to remove a spent cartridge and replace it with a fresh cartridge to continue solid imaging virtually uninterrupted. The apparatus also includes the capability of withdrawing and inserting an imager without the operator having to perform a separate alignment step. A brush attached to the transport film and forming part of the cartridge provides for intra-layer removal of excess uncured build material. If desired, the apparatus can produce a fully reacted build. A high intensity UV source cures the build between layers. An injection molded build pad is designed to hold a build in an inverted position for improving the build.Type: ApplicationFiled: September 17, 2007Publication date: July 17, 2008Inventors: Charles R. Sperry, Dennis F. McNamara, Suzanne M. Scott, Charles W. Hull, Jouni Partanen, Mehdi Mojdeh, William J. Pappas, Richard O. Gregory