Patents by Inventor Somasundaram Valliappan

Somasundaram Valliappan 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: 8336457
    Abstract: Applicants have discovered that electrostatic discharge (ESD) may, in some circumstances, result in current densities sufficient to ignite unprotected reactive composite materials. They have further discovered that a reactive composite material (RCM) can be protected from ESD ignition without adversely affecting the desirable properties of the RCM by the application of conducting and/or insulating materials at appropriate locations on the RCM. Thus ESD-protected RCM structures can be designed for such sensitive applications as ignition of propellants, generation of light bursts, and structural materials for equipment that may require controlled self-destruction.
    Type: Grant
    Filed: June 15, 2006
    Date of Patent: December 25, 2012
    Assignee: Nanofoil Corporation
    Inventors: Timothy P. Weihs, Etienne Besnoin, Ramzi Vincent, Somasundaram Valliappan, Ellen Heian, David Van Heerden, Timothy Ryan Rude, Omar Knio, Ronald Spraker, Yuping Lin
  • Publication number: 20110070460
    Abstract: Applicants have discovered that electrostatic discharge (ESD) may, in some circumstances, result in current densities sufficient to ignite unprotected reactive composite materials. They have further discovered that a reactive composite material (RCM) can be protected from ESD ignition without adversely affecting the desirable properties of the RCM by the application of conducting and/or insulating materials at appropriate locations on the RCM. Thus ESD-protected RCM structures can be designed for such sensitive applications as ignition of propellants, generation of light bursts, and structural materials for equipment that may require controlled self-destruction.
    Type: Application
    Filed: June 15, 2006
    Publication date: March 24, 2011
    Inventors: Timothy P. Weihs, Etienne Besnoin, Ramzi Vincent, Somasundaram Valliappan, Ellen Heian, David Van Heerden, Timothy Ryan Rude, Omar Knio, Ronald Spraker, Yuping Lin
  • Publication number: 20090166568
    Abstract: A device and method for emitting electromagnetic radiation utilizing a reactive composite material (RCM) as an emission source. By selective modification of the reactive composite material (RCM), attributes of the emitting device, including the ability to produce specific radiation intensity levels at specific electromagnetic wavelengths, the ability to emit for a specific duration, the avoidance of dangerous reaction products, portability, geometric design flexibility, and simple, safe storage may be selected.
    Type: Application
    Filed: June 22, 2006
    Publication date: July 2, 2009
    Inventors: Timothy P. Weihs, Somasundaram Valliappan, Timothy Ryan Rude, Ellen M. Heian, David Lunking, Yuwei Xun
  • Publication number: 20080093418
    Abstract: A reactive composite structure having selected energetic and mechanical properties, and methods of making reactive composite structures enabling the construction of complex parts and components by machining and forming of reactive composite materials without compromising the energetic or mechanical properties of the resulting reactive composite structure.
    Type: Application
    Filed: June 21, 2006
    Publication date: April 24, 2008
    Inventors: Timothy P. Weihs, David M. Lunking, Ellen M. Heian, Yuwei Xun, Richard Bowman, Gary Catig, David van Heerden, Somasundaram Valliappan, Omar Knio, Joseph Grzyb
  • Publication number: 20080063889
    Abstract: A process and apparatus for the reactive multilayer joining of components utilizing metallization techniques to bond difficult-to-wet materials and temperature sensitive materials to produce joined products.
    Type: Application
    Filed: September 6, 2007
    Publication date: March 13, 2008
    Inventors: Alan Duckham, Timothy Weihs, Jesse Newson, Jonathan Levin, Somasundaram Valliappan
  • Publication number: 20060068179
    Abstract: In accordance with the invention, a fuse comprises a reactive composite structure to interrupt the flow of current in a circuit. The term fuse, as used herein, is intended to cover current interrupters generically and thus encompasses fuses, circuit breakers and other devices for interrupting the flow of current through a conductor. Reactive composite structures comprise two or more phases of materials spaced in a controlled fashion throughout a composite in uniform layers, local layers, islands, or particles. Upon appropriate excitation, the materials undergo an exothermic chemical reaction that spreads rapidly through the composite structure generating heat and light. Moreover a reactive composite structure can break apart upon reaction. This breakage can rapidly interrupt the flow of current through the reactive composite structure. Such structures can provide high-speed current interruption.
    Type: Application
    Filed: September 16, 2005
    Publication date: March 30, 2006
    Inventors: Timothy Weihs, Ellen Heian, Ramzi Vincent, Somasundaram Valliappan, Etienne Besnoin
  • Publication number: 20050142495
    Abstract: Embodiments of the invention include a method of simulating an ignition of a reactive multilayer foil. Other embodiments include various methods of igniting a reactive multilayer foil by transferring energy from an energy source to a reactive multilayer foil.
    Type: Application
    Filed: October 7, 2004
    Publication date: June 30, 2005
    Inventors: David Peter Van Heerden, Etienne Besnoin, Stephen Spey, Timothy Rude, Michael Brown, Dale Deger, Ellen Heian, Somasundaram Valliappan, Omar Knio, Timothy Weihs