Patents by Inventor Alvin W. Czanderna

Alvin W. Czanderna 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: 5591690
    Abstract: The present invention relates to a gettering material that may be used as a filtration medium to remove pollutants from the environment. The gettering material comprises a high surface area material having a metal surface that chemically bonds n-alkanethiols in an organized manner thereby forming a molecular monolayer over the metal surface. The n-alkanethiols have a free functional group that interacts with the environment thereby binding specific pollutants that may be present. The gettering material may be exposed to streams of air in heating, ventilation, and air conditioning systems or streams of water to remove specific pollutants from either medium.
    Type: Grant
    Filed: June 29, 1994
    Date of Patent: January 7, 1997
    Assignee: Midwest Research Institute
    Inventors: David E. King, Gregory C. Herdt, Alvin W. Czanderna
  • Patent number: 5487792
    Abstract: A protective diffusion barrier having adhesive qualifies for metalized surfaces is provided by a passivating agent having the formula HS--(CH.sub.2).sub.11 --COOH Which forms a very dense, transparent organized molecular assembly or layer that is impervious to water, alkali, and other impurities and corrosive substances that typically attack metal surfaces.
    Type: Grant
    Filed: June 13, 1994
    Date of Patent: January 30, 1996
    Assignee: Midwest Research Institute
    Inventors: David E. King, Alvin W. Czanderna, Cheryl E. Kennedy
  • Patent number: 4547432
    Abstract: A method for adhering silver to a glass substrate for producing mirrors includes attaining a silicon enriched substrate surface by reducing the oxygen therein in a vacuum and then vacuum depositing a silver layer onto the silicon enriched surface. The silicon enrichment can be attained by electron beam bombardment, ion beam bombardment, or neutral beam bombardment. It can also be attained by depositing a metal, such as aluminum, on the substrate surface, allowing the metal to oxidize by pulling oxygen from the substrate surface, thereby leaving a silicon enriched surface, and then etching or eroding the metal oxide layer away to expose the silicon enriched surface. Ultraviolet rays can be used to maintain dangling silicon bonds on the enriched surface until covalent bonding with the silver can occur. This disclosure also includes encapsulated mirrors with diffusion layers built therein. One of these mirrors is assembled on a polymer substrate.
    Type: Grant
    Filed: July 31, 1984
    Date of Patent: October 15, 1985
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: John R. Pitts, Terence M. Thomas, Alvin W. Czanderna