Patents by Inventor Erik Weiser

Erik Weiser 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: 20080087870
    Abstract: The invention involves composite materials containing a polymer foam and an aerogel. The composite materials have improved thermal insulation ability, good acoustic insulation, and excellent physical mechanical properties. The composite materials can be used, for instance, for heat and acoustic insulation on aircraft, spacecraft, and maritime ships in place of currently used foam panels and other foam products. The materials of the invention can also be used in building construction with their combination of light weight, strength, elasticity, ability to be formed into desired shapes, and superior thermal and acoustic insulation power. The materials have also been found to have utility for storage of cryogens. A cryogenic liquid or gas, such as N2 or H2, adsorbs to the surfaces in aerogel particles. Thus, another embodiment of the invention provides a storage vessel for a cryogen.
    Type: Application
    Filed: June 7, 2007
    Publication date: April 17, 2008
    Applicant: U.S.A. as Represented by the Administration of the National Aeronautics and Space Ad
    Inventors: Martha Williams, Trent Smith, James Fesmire, Erik Weiser, Jared Sass
  • Publication number: 20060063848
    Abstract: A fully imidized, solvent-free polyimide foam having excellent mechanical, acoustic, thermal, and flame resistant properties is produced. A first solution is provided, which includes one or more aromatic dianhydrides or derivatives of aromatic dianhydrides, and may include one or more aromatic diamines, dissolved in one or more polar solvents, along with an effective amount of one or more blowing agents. This first solution may also advantageously include effective amounts respectively of one or mores catalysts, one or more surfactants, and one or more fire retardants. A second solution is also provided which includes one or more isocyanates. The first and second solutions are rapidly and thoroughly mixed to produce an admixture, which is allowed to foam—in an open container, or in a closed mold—under ambient conditions to completion produce a foamed product. This foamed product is then cured by high frequency electromagnetic radiation, thermal energy, or a combination thereof.
    Type: Application
    Filed: May 5, 2005
    Publication date: March 23, 2006
    Applicant: U.S.A. as represented by the Administrator of the National Aeronautics & Space Administration
    Inventors: Juan Vazquez, Roberto Cano, Brian Jensen, Erik Weiser
  • Publication number: 20050209429
    Abstract: Main chain thermotropic liquid crystal esters, ester-imides, and ester-amides were prepared from AA, BB, and AB type monomeric materials and end-capped with phenylacetylene, phenylmaleimide, or nadimide reactive end-groups. The end-capped liquid crystal oligomers are thermotropic and have, preferably, molecular weights in the range of approximately 1000-15,000 grams per mole. The end-capped liquid crystal oligomers have broad liquid crystalline melting ranges and exhibit high melt stability and very low melt viscosities at accessible temperatures. The end-capped liquid crystal oligomers are stable for up to an hour in the melt phase. They are highly processable by a variety of melt process shape forming and blending techniques. Once processed and shaped, the end-capped liquid crystal oligomers were heated to further polymerize and form liquid crystalline thermosets (LCT). The fully cured products are rubbers above their glass transition temperatures.
    Type: Application
    Filed: April 29, 2005
    Publication date: September 22, 2005
    Applicant: USA as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: Theodorus Dingemans, Erik Weiser, Terry St. Clair
  • Publication number: 20050136239
    Abstract: Apparatus and methods for multi-layer foam structures are disclosed. In one embodiment, a method includes filling a first portion of a receptacle with a removable filler. A second portion of the receptacle is filled with a first foam forming a first foam layer. The removeable filler is removed, and at least part of the first portion of the receptacle is filled with a second foam, forming a second foam layer. The first foam may include a polyimide foam, and the second foam may include a polyurethane foam. Other aspects of the invention include a skin attached to the receptacle and the first foam. In other embodiments, hexagonal honeycomb matrix may be used as a receptacle for the first foam and the second foam.
    Type: Application
    Filed: August 25, 2004
    Publication date: June 23, 2005
    Inventors: Jeffrey Eichinger, Erik Weiser, Ruth Pater, Joel Slenk