Patents by Inventor Samir A. Nayfeh

Samir A. Nayfeh 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: 20090275893
    Abstract: An instrument port for introducing instruments into a surgical site, including a port body having a channel running therethrough from a proximal end to a distal end, an instrument sleeve in slidable contact with the channel, creating a gap therebetween, and fluid flow for removing emboli efficiently from the instrument port, wherein the fluid flow includes the gap is provided. A fluid flow system for use in an instrument port is provided. A method of removably securing an instrument sleeve to a port body by anchoring the instrument port to heart tissue, making at least one flood line in a channel, flushing out emboli, and performing surgery with the instrument port.
    Type: Application
    Filed: January 5, 2007
    Publication date: November 5, 2009
    Inventors: Christopher DiBiasio, Keith Durand, Jonathan Brigham Hopkins, Zach Traina, Alexander Slocum, Samir Nayfeh, Pedro de Nido
  • Publication number: 20090180091
    Abstract: In a lithographic apparatus, dampers are provided that may be used within mounts for optical elements in order to damp the motion of the optical element relative to the component to which it is mounted.
    Type: Application
    Filed: October 27, 2008
    Publication date: July 16, 2009
    Applicant: ASML Holding N.V.
    Inventors: Windy Lynn FARNSWORTH, Santiago E. Del Puerto, Samir A. Nayfeh
  • Patent number: 7549867
    Abstract: The transfer apparatus is directed toward electrical transfer components providing an electrical connection to a rotating object. The transfer apparatus includes a stator base mounted proximate to the rotating object. An axle rotatably mounts at least one conductive disk to the stator base. The conductive disk is held against the rotating object. As the rotating object rotates about a first axis, the conductive disk is made to rotate about a second axis, the second axis otherwise maintaining a static position. A rotationally immobile contact is maintained in substantial electronic contact with the conductive disk whereby a lead wire may be connected to the immobile contact.
    Type: Grant
    Filed: November 7, 2006
    Date of Patent: June 23, 2009
    Assignee: Diamond-Roltran, LLC
    Inventors: Richard A. Moro, Jr., Michael Howard, Samir A. Nayfeh, Chad S. Klotzle, James A. Young
  • Publication number: 20080180836
    Abstract: The transfer apparatus is directed toward electrical transfer components providing an electrical connection to a rotating object. The transfer apparatus includes a stator base mounted proximate to the rotating object. An axle rotatably mounts at least one conductive disk to the stator base. The conductive disk is held against the rotating object. As the rotating object rotates about a first axis, the conductive disk is made to rotate about a second axis, the second axis otherwise maintaining a static position. A rotationally immobile contact is maintained in substantial electronic contact with the conductive disk whereby a lead wire may be connected to the immobile contact.
    Type: Application
    Filed: November 7, 2006
    Publication date: July 31, 2008
    Inventors: Richard A. Moro, Samir A. Nayfeh, Chad S. Klotzle, James A. Young
  • Patent number: 7318456
    Abstract: A modular weaving machine includes a loom chassis and a plurality of modular warp units. The warp units are each configured for supporting a plurality of removable bobbins thereon, the bobbins being pre-loadable with a plurality of warp threads. The loom chassis is configured to receivably support the warp units thereon, so that the warp threads are disposed in parallel, spaced relation to one another, extending in a downstream direction. A plurality of shedding actuators are coupled to the loom chassis and configured to form a shed with warp threads of each of the warp units. A weft insertion module is configured to insert a weft thread through the shed.
    Type: Grant
    Filed: November 13, 2006
    Date of Patent: January 15, 2008
    Assignee: Massachusetts Institute of Technology
    Inventors: Samir A. Nayfeh, Jonathan D. Rohrs
  • Publication number: 20070107796
    Abstract: A modular weaving machine includes a loom chassis and a plurality of modular warp units. The warp units are each configured for supporting a plurality of removable bobbins thereon, the bobbins being pre-loadable with a plurality of warp threads. The loom chassis is configured to receivably support the warp units thereon, so that the warp threads are disposed in parallel, spaced relation to one another, extending in a downstream direction. A plurality of shedding actuators are coupled to the loom chassis and configured to form a shed with warp threads of each of the warp units. A weft insertion module is configured to insert a weft thread through the shed.
    Type: Application
    Filed: November 13, 2006
    Publication date: May 17, 2007
    Inventors: Samir Nayfeh, Jonathan Rohrs
  • Patent number: 7178558
    Abstract: A modular weaving machine includes a loom chassis and a plurality of modular warp units. The warp units are each configured for being pre-loaded with a plurality of warp threads. The loom chassis is configured to receivably support the warp units thereon, so that the warp threads are disposed in parallel, spaced relation to one another, extending in a downstream direction. A plurality of shedding actuators are coupled to the loom chassis and configured to form a shed with warp threads of each of the warp units. A weft insertion module is configured to insert a weft thread through the shed.
    Type: Grant
    Filed: April 25, 2005
    Date of Patent: February 20, 2007
    Assignee: Massachusetts Institute of Technology
    Inventors: Samir A. Nayfeh, Jonathan D. Robrs
  • Publication number: 20060249217
    Abstract: A modular weaving machine includes a loom chassis and a plurality of modular warp units. The warp units are each configured for being pre-loaded with a plurality of warp threads. The loom chassis is configured to receivably support the warp units thereon, so that the warp threads are disposed in parallel, spaced relation to one another, extending in a downstream direction. A plurality of shedding actuators are coupled to the loom chassis and configured to form a shed with warp threads of each of the warp units. A weft insertion module is configured to insert a weft thread through the shed.
    Type: Application
    Filed: April 25, 2005
    Publication date: November 9, 2006
    Inventors: Samir Nayfeh, Jonathan Robrs
  • Patent number: 7077167
    Abstract: A bias-weaving machine is provided. In one embodiment, the bias-weaving machine includes a plurality of yarn carriers, each holding a yarn under tension that extends in a downstream direction towards a woven product. The yarn carriers are translatable in at least one direction other than the downstream direction. The apparatus further includes a plurality of reeds disposed to comb the yarns in a downstream direction. The reeds have a range of motion extending between positions upstream and downstream of the yarn carriers. Embodiment of this invention may advantageously be utilized to weave three-dimensional woven products, such as textile preforms for aerospace composites.
    Type: Grant
    Filed: August 27, 2004
    Date of Patent: July 18, 2006
    Assignee: Massachusetts Institute of Technology
    Inventors: Samir A. Nayfeh, Jonathan D. Rohrs, Osamah Rifai, Sappinandana Akamphon, Mauricio Diaz, Emily C. Warman
  • Publication number: 20050274426
    Abstract: A bias-weaving machine is provided. In one embodiment, the bias-weaving machine includes a plurality of yarn carriers, each holding a yarn under tension that extends in a downstream direction towards a woven product. The yarn carriers are translatable in at least one direction other than the downstream direction. The apparatus further includes a plurality of reeds disposed to comb the yarns in a downstream direction. The reeds have a range of motion extending between positions upstream and downstream of the yarn carriers. Embodiment of this invention may advantageously be utilized to weave three-dimensional woven products, such as textile preforms for aerospace composites.
    Type: Application
    Filed: August 27, 2004
    Publication date: December 15, 2005
    Inventors: Samir Nayfeh, Jonathan Rohrs, Osamah Rifai, Sappinandana Akamphon, Mauricio Diaz, Emily Warman
  • Patent number: 6892766
    Abstract: A loom for weaving three dimensional woven structures which include interwoven bias fibers and at least one integrally woven junction. The loom includes bias fiber holders, bias shuttles, and independently controllable bias arms to interweave the bias fibers. Each bias fiber holder holds a bias fiber under tension. The bias shuttles may releasably grip a number of the bias fiber holders and translate them horizontally between a plurality of predetermined horizontal positions. Each bias shuttle is at a separate vertical position. At least one bias shuttle translates above the shed and at least one bias shuttle translates below the shed. Each independently controllable bias arm may releasably grip one of the bias fiber holders and translate it vertically, at one of the predetermined horizontal positions, with a range of motion extending at least between two of the bias shuttles.
    Type: Grant
    Filed: March 2, 2004
    Date of Patent: May 17, 2005
    Assignee: Bally Ribbon Mills
    Inventors: Leon Bryn, Samir A. Nayfeh, M. Amirul Islam, William L. Lowery, Jr., Herbert D. Harries, III
  • Publication number: 20040168738
    Abstract: The present invention involves three dimensional woven structures which include interwoven bias fibers and at least one integrally woven junction, and a loom for weaving these structures. The loom includes bias fiber holders, bias shuttles, and independently controllable bias arms to interweave the bias fibers. Each bias fiber holder holds a bias fiber under tension. The bias shuttles may releasably grip a number of the bias fiber holders and translate them horizontally between a plurality of predetermined horizontal positions. Each bias shuttle is at a separate vertical position. At least one bias shuttle translates above the shed and at least one bias shuttle translates below the shed. Each independently controllable bias arm may releasably grip one of the bias fiber holders and translate it vertically, at one of the predetermined horizontal positions, with a range of motion extending at least between two of the bias shuttles.
    Type: Application
    Filed: March 2, 2004
    Publication date: September 2, 2004
    Inventors: Leon Bryn, Samir A. Nayfeh, M. Amirul Islam, William L. Lowery, H. D. Harries
  • Patent number: 6626064
    Abstract: A vehicle seat assembly includes a motor coupled to an output shaft. At least two driven shafts are each operable between three operating modes. The three operating modes are a stationary mode, a first rotational direction, and a second rotational direction. A transmission assembly connects the driven shafts to the output shaft. The transmission assembly is operable to control each of the driven shafts in any one of the three operating modes when the output shaft rotates in the first rotational direction.
    Type: Grant
    Filed: August 7, 2001
    Date of Patent: September 30, 2003
    Assignee: Lear Corporation
    Inventors: H. Winston Maue, Eric J. Krupp, Michael N. Maass, John R. Sims, Samir Nayfeh, Justin W. Raade, Amy W. Cai, Jeehan S. Faiz, Mario Montoya, Erick Rios, Pablo Tribin, Ernesto Blanco
  • Publication number: 20020069927
    Abstract: The present invention involves three dimensional woven structures which include interwoven bias fibers and at least one integrally woven junction, and a loom for weaving these structures. The loom includes bias fiber holders, bias shuttles, and independently controllable bias arms to interweave the bias fibers. Each bias fiber holder holds a bias fiber under tension. The bias shuttles may releasably grip a number of the bias fiber holders and translate them horizontally between a plurality of predetermined horizontal positions. Each bias shuttle is at a separate vertical position. At least one bias shuttle translates above the shed and at least one bias shuttle translates below the shed. Each independently controllable bias arm may releasably grip one of the bias fiber holders and translate it vertically, at one of the predetermined horizontal positions, with a range of motion extending at least between two of the bias shuttles.
    Type: Application
    Filed: September 20, 2001
    Publication date: June 13, 2002
    Inventors: Leon Bryn, Samir A. Nayfeh, M. Amirul Islam, William L. Lowery, H. D. Harries