Patents by Inventor David W. Rosen

David W. Rosen 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: 20170100283
    Abstract: An apparatus includes a component having a shape memory material. The shape memory material has a first shape including a substantially elongate segment. The shape memory material has a second shape including a helix having a first ring and a second ring configured to exert a compressive force on a membrane interleaved between the first ring and the second ring and lying in a plane substantially perpendicular to an axis of the helix, the shape selectable based on an external stimulus.
    Type: Application
    Filed: December 22, 2016
    Publication date: April 13, 2017
    Inventors: Timothy W. Olsen, David W. Rosen, Shreyes N. Melkote, George K. Mathai
  • Patent number: 9539082
    Abstract: An apparatus includes a component having a shape memory material. The shape memory material has a first shape including a substantially elongate segment. The shape memory material has a second shape including a helix having a first ring and a second ring configured to exert a compressive force on a membrane interleaved between the first ring and the second ring and lying in a plane substantially perpendicular to an axis of the helix, the shape selectable based on an external stimulus.
    Type: Grant
    Filed: November 24, 2010
    Date of Patent: January 10, 2017
    Assignees: Emory University, Georgia Tech Research Corporation
    Inventors: Timothy W. Olsen, David W. Rosen, Shreyes N. Melkote, George K. Mathai
  • Patent number: 9367049
    Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for fabricating parts from photopolymer resin. In one aspect, a method includes iteratively determining a deviation measurement based on a simulated cured geometry and adjusted target geometry data until the deviation measurement is at or less than a threshold. The simulated cured geometry is determined, based in part, on an inhibition model.
    Type: Grant
    Filed: July 15, 2011
    Date of Patent: June 14, 2016
    Assignee: GEORGIA TECH RESEARCH CORPORATION
    Inventors: Amit S. Jariwala, David W. Rosen, Fei Ding
  • Publication number: 20130123988
    Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for fabricating parts from photopolymer resin. In one aspect, a method includes iteratively determining a deviation measurement based on a simulated cured geometry and adjusted target geometry data until the deviation measurement is at or less than a threshold. The simulated cured geometry is determined, based in part, on an inhibition model.
    Type: Application
    Filed: July 15, 2011
    Publication date: May 16, 2013
    Applicant: GEORGIA INSTITUTE OF TECHNOLOGY
    Inventors: Amit S. Jariwala, David W. Rosen, Fei Ding
  • Publication number: 20130073054
    Abstract: An apparatus includes a component having a shape memory material. The shape memory material has a first shape including a substantially elongate segment. The shape memory material has a second shape including a helix having a first ring and a second ring configured to exert a compressive force on a membrane interleaved between the first ring and the second ring and lying in a plane substantially perpendicular to an axis of the helix, the shape selectable based on an external stimulus.
    Type: Application
    Filed: November 24, 2010
    Publication date: March 21, 2013
    Applicants: GEORGIA TECH RESEARCH CORPORATION, EMORY UNIVERSITY
    Inventors: Timothy W. Olsen, David W. Rosen, Shreyes N. Melkote, George K. Mathai
  • Patent number: 7047143
    Abstract: A system and method for controlling the surface and/or volume of a digital clay device is provided. One embodiment, among others, is a method comprising the following steps: determining a desired position of a skeleton structure portion residing in the digital clay device, determining a volumetric change of fluid residing in a fluid cell, the determined volumetric change corresponding to the determined desired position of the skeleton structure portion, opening a valve so that the fluid flows through the valve thereby causing the determined volumetric change of the fluid, and adjusting a position of the skeleton structure portion corresponding to the desired position of the skeleton structure portion, the position adjustment caused by a force generated by the fluid cell on the skeleton structure portion when the volume of the fluid cell changes in response to the determined volumetric change of the fluid residing in the fluid cell.
    Type: Grant
    Filed: July 13, 2004
    Date of Patent: May 16, 2006
    Assignee: Georgia Tech Research Corporation
    Inventors: Mark Allen, Wayne J. Book, Imme Ebert-Uphoff, Ari Glezer, David W. Rosen, Jaroslaw R. Rossignac
  • Patent number: 6836736
    Abstract: A system and method for controlling the surface and/or volume of a digital clay device is provided. One embodiment, among others, is a method comprising the following steps: determining a desired position of a skeleton structure portion residing in the digital clay device, determining a volumetric change of fluid residing in a bladder, the determined volumetric change corresponding to the determined desired position of the skeleton structure portion, opening a micro-electro mechanical systems (MEMS) valve so that the fluid flows through the MEMS valve thereby causing the determined volumetric change of the fluid, and adjusting a position of the skeleton structure portion corresponding to the desired position of the skeleton structure portion, the position adjustment caused by a force generated by the bladder on the skeleton structure portion when the volume of the bladder changes in response to the determined volumetric change.
    Type: Grant
    Filed: June 7, 2002
    Date of Patent: December 28, 2004
    Assignee: Georgia Tech Research Corporation
    Inventors: Mark Allen, Wayne J. Book, Imme Ebert-Uphoff, Ari Glezer, David W. Rosen, Jaroslaw R. Rossignac
  • Publication number: 20040249582
    Abstract: A system and method for controlling the surface and/or volume of a digital clay device is provided. One embodiment, among others, is a method comprising the following steps: determining a desired position of a skeleton structure portion residing in the digital clay device, determining a volumetric change of fluid residing in a bladder, the determined volumetric change corresponding to the determined desired position of the skeleton structure portion, opening a micro-electro mechanical systems (MEMS) valve so that the fluid flows through the MEMS valve thereby causing the determined volumetric change of the fluid, and adjusting a position of the skeleton structure portion corresponding to the desired position of the skeleton structure portion, the position adjustment caused by a force generated by the bladder on the skeleton structure portion when the volume of the bladder changes in response to the determined volumetric change.
    Type: Application
    Filed: July 13, 2004
    Publication date: December 9, 2004
    Inventors: Mark Allen, Wayne J. Book, Imme Ebert-Uphoff, Ari Glezer, David W. Rosen, Jaroslaw R. Rossignac
  • Publication number: 20030004657
    Abstract: A system and method for controlling the surface and/or volume of a digital clay device is provided. One embodiment, among others, is a method comprising the following steps: determining a desired position of a skeleton structure portion residing in the digital clay device, determining a volumetric change of fluid residing in a bladder, the determined volumetric change corresponding to the determined desired position of the skeleton structure portion, opening a micro-electro mechanical systems (MEMS) valve so that the fluid flows through the MEMS valve thereby causing the determined volumetric change of the fluid, and adjusting a position of the skeleton structure portion corresponding to the desired position of the skeleton structure portion, the position adjustment caused by a force generated by the bladder on the skeleton structure portion when the volume of the bladder changes in response to the determined volumetric change.
    Type: Application
    Filed: June 7, 2002
    Publication date: January 2, 2003
    Inventors: Mark Allen, Wayne J. Book, Imme Ebert-Uphoff, Ari Glezer, David W. Rosen, Joroslaw R. Rossignac