Patents by Inventor Seng Tan

Seng Tan 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).

  • Patent number: 8852473
    Abstract: A pin or tube reinforced polymeric foam and a method of manufacture thereof. The reinforcing pins or tubes are incorporated into the polymeric foam during or after fabrication of the reinforced polymer foam and are preferably coated with an adhesive or binder layer prior to fabrication.
    Type: Grant
    Filed: September 23, 2008
    Date of Patent: October 7, 2014
    Assignee: Wright Materials Research Co.
    Inventor: Seng Tan
  • Patent number: 8408114
    Abstract: A ballistic shield for protection against up to 7.62×63 mm AP rounds (NIJ Level IV). The ballistic shield is multiple layered and includes polymer foam, ceramic tiles, and a support structure fabricated from ballistic resistant fabric. Individual layers are bonded with adhesives and preferably wrapped with fabric. Under the fabric cover of the exterior surface of the shield is a polymer foam layer that exhibits excellent blast impact resistance and blast attenuation properties as well as a hard ceramic or the like layer. The foam layer is preferably made from liquid crystal or semi-crystalline polymer to enhance fire resistance and provide enhanced ductility. According to a preferred embodiment, the man-portable ballistic shield of the present invention also incorporates a compact video system for viewing the front side of the ballistic shield thereby allowing for the elimination of the transparent view port weakness of current state of the art ballistic shields.
    Type: Grant
    Filed: September 24, 2009
    Date of Patent: April 2, 2013
    Assignee: Wright Materials Research Co.
    Inventor: Seng Tan
  • Patent number: 8325235
    Abstract: An arm or chest mount portable surveillance system utilizing a compact LCD display (monitor), batteries, a telescoping pole having a camera at one extremity thereof, a short at least partially flexible pole having a camera at one extremity thereof, and a recorder are described. The system allows users to observe objects and activities around and through obstacles in under any ambient light condition including in darkness through the use of an infrared camera.
    Type: Grant
    Filed: October 28, 2009
    Date of Patent: December 4, 2012
    Assignee: Wright Materials Research, Co.
    Inventor: Seng Tan
  • Patent number: 8176830
    Abstract: A ballistic shield for protection against up to 7.62×63 mm AP rounds (NIJ Level IV). The ballistic shield is multiple layered and includes polymer foam, ceramic tiles, and a support structure fabricated from ballistic resistant fabric. Individual layers are bonded with adhesives and preferably wrapped with fabric. Under the fabric cover of the exterior surface of the shield is a polymer foam layer that exhibits excellent blast impact resistance and blast attenuation properties as well as a hard ceramic or the like layer. The foam layer is preferably made from liquid crystal or semi-crystalline polymer to enhance fire resistance and provide enhanced ductility. According to various preferred embodiments, the man-portable ballistic shield also incorporates a compact video system for viewing the front side of the ballistic shield to eliminate the transparent view port of current ballistic shields and protective foam about the periphery and on the rear surface thereof.
    Type: Grant
    Filed: October 21, 2009
    Date of Patent: May 15, 2012
    Assignee: Wright Materials Research Co.
    Inventor: Seng Tan
  • Patent number: 8047117
    Abstract: A blast wave attenuator comprising: a deflector and a foam or foamed composite inside of the deflector. The foamed composite may be a combination of fabrics, fibers, and small reinforcements embedded in a polymeric foam matrix. The foamed composites can be fabricated using a one-step process. The deflector can be manufactured from metal sheets including but not limited to titanium, stainless steel, carbon steel, and superalloys. The blast wave attenuator of the present invention greatly improves the impact resistance and protection of blast protective footwear and combat boots or the like without sacrificing traction or mobility.
    Type: Grant
    Filed: April 13, 2007
    Date of Patent: November 1, 2011
    Assignee: Wright Materials Research Company
    Inventor: Seng Tan
  • Patent number: 7799710
    Abstract: A foamed composite armor laminate comprising interleaved combinations of ballistic resistant fabrics, and ceramic and/or metallic plates or sheets in a polymeric foam matrix. The foamed composite armor can be fabricated by inserting polymer powder or sheets between layers of fabric and/or ceramic or metallic sheets to form a laminated structure, heating this laminated structure under pressure to form a consolidated panel, and then foaming the polymeric portion of the consolidated panel in an autoclave or pressure vessel by saturating the polymeric portion with inert gas at elevated temperature, rapidly releasing the pressure and controllably cooling the laminated structure to ambient. Alternatively, pre-foamed panels can be laminated to fabric, ceramic and/or metallic sheets using adhesives or the like. Through proper selection of the various elements of the laminate, i.e.
    Type: Grant
    Filed: March 24, 2008
    Date of Patent: September 21, 2010
    Inventor: Seng Tan
  • Patent number: 7160929
    Abstract: U.S. Pat. No. 6,232,354 issued May 15, 2001 describes an environmentally friendly and commercially practicable process for the production of microcellular polymer foams from amorphous, semi-crystalline and crystalline polymers which involves consolidating the polymer, saturating the polymer with an inert gas at elevated temperature and under elevated pressure, and controllably cooling, i.e. quenching the saturated polymer under a variety of temperature and pressure conditions to produce either a closed or open celled microcellular foam or a high density microcellular foam. It has now been discovered that a process similar to that described in this patent can be used for the production of nanocomposite and molecular-composite foams that exhibit exceptional physical properties.
    Type: Grant
    Filed: February 13, 2002
    Date of Patent: January 9, 2007
    Assignee: Wrigt Materials Research Co
    Inventor: Seng Tan
  • Publication number: 20060123287
    Abstract: A curve tracing method comprising simultaneously connecting a test IC sample and a reference IC sample to a switchboard; and selectively connecting a scanning voltage output or a sensing input of a curve tracer unit to each of the pins of the test IC sample and the reference IC sample via the pin switches and the IC sockets.
    Type: Application
    Filed: November 18, 2004
    Publication date: June 8, 2006
    Inventors: Seng Tan, Kok Tan
  • Patent number: 6733737
    Abstract: An enhanced method for the post processing, i.e. oxidation or stabilization, of carbon materials including, but not limited to, carbon foams, carbon fibers, dense carbon-carbon composites, carbon/ceramic and carbon/metal composites, which method requires relatively very short and more effective such processing steps. The introduction of an “oxygen spill over catalyst” into the carbon precursor by blending with the carbon starting material or exposure of the carbon precursor to such a material supplies required oxygen at the atomic level and permits oxidation/stabilization of carbon materials in a fraction of the time and with a fraction of the energy normally required to accomplish such carbon processing steps. Carbon based foams, solids, composites and fiber products made utilizing this method are also described.
    Type: Grant
    Filed: August 29, 2001
    Date of Patent: May 11, 2004
    Assignee: Wright Materials Research Corp.
    Inventors: Seng Tan, Cher-Dip Tan