Patents by Inventor John S. Rubacha

John S. Rubacha 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: 5840213
    Abstract: A method of improving the storage life of goods by storing the goods in an environment comprising heptafluoropropane at pressures of between about 0.1 atmospheres and about 2.0 atmospheres. Foods, pharmaceuticals, and other goods adversely affected by oxygen and/or moisture are effectively stored by the claimed method. The method is particularly effective for goods stored in plastic containers, and for goods stored in containers stoppered by rubber stoppers.
    Type: Grant
    Filed: March 14, 1997
    Date of Patent: November 24, 1998
    Assignee: Great Lakes Chemical Corporation
    Inventors: Charles J. Mazac, John S. Rubacha
  • Patent number: 5679287
    Abstract: A method for storing atmosphere sensitive product includes providing an atmosphere surrounding the product which contains at least about 5% heptafluoropropane, preferably at least about 20% heptafluoropropane. The stored products include food, pharmaceutical and chemical products, and mechanical and electrical equipment. In a particular aspect, the method includes storing the product in a closed container and providing in the headspace of the container an atmosphere containing heptafluoropropane.
    Type: Grant
    Filed: April 28, 1995
    Date of Patent: October 21, 1997
    Assignee: Great Lakes Chemical Corporation
    Inventors: Charles J. Mazac, John S. Rubacha
  • Patent number: 5615742
    Abstract: A method for extinguishing hydrogen fires comprises introducing to the hydrogen fire a fire extinguishing concentration of 1,1,1,2,3,3,3-heptafluoropropane and maintaining the concentration until the fire is extinguished. The method includes heptafluoropropane at a range of 13-30% volume/volume in the air. The fire extinguishing methods also include the use of heptafluoropropane in blend with other fire extinguishing compounds. Also disclosed are atmospheres of hydrogen, an oxidizer, and a sufficient amount of 1,1,1,2,3,3,3-heptafluoropropane to render the atmosphere incapable of supporting combustion of the hydrogen, as well as related methods for preparing such atmospheres.
    Type: Grant
    Filed: September 15, 1995
    Date of Patent: April 1, 1997
    Assignee: Great Lakes Chemical Corporation
    Inventors: Mark L. Robin, Charles J. Mazac, John S. Rubacha