Patents by Inventor Susan D. Royer

Susan D. Royer 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).

  • AIRCRAFT RUNWAY DEICING COMPOSITION
    Publication number: 20030146408
    Abstract: An aqueous liquid aircraft runway deicer composition having minimal catalytic oxidation effect upon carbon-carbon composites which contains between about 20 and about 25 weight % of an alkaline earth metal carboxylate, between about 1 and about 15 weight % of an alkaline earth metal carboxylate, between about 1 and 35 weight % of an aliphatic alcohol, between about 0.01 and about 1 weight % of an alkali metal phosphate, between about 0.01 and about 1 weight % of an alkali metal silicate, and up to about 1% by weight of a triazole. A process for producing such a liquid aircraft runway deicer blends an alkali metal hydroxide, an alkali metal phosphate and an alkali metal silicate in aqueous solution and reacts a carboxylic acid with the hydroxide in the solution to create an alkali metal carboxylate solution at a pH of about 14.2. A minor amount of a triazole is added when the pH is below 15.
    Type: Application
    Filed: November 26, 2002
    Publication date: August 7, 2003
    Inventors: John O. Moles, John L. Maier, Keith L. Johnson, Susan D. Royer
  • Aircraft runway deicing composition
    Patent number: 6596189
    Abstract: An aqueous liquid aircraft runway deicer composition having minimal catalytic oxidation effect upon carbon-carbon composites which contains between about 20 and about 25 weight % of an alkaline earth metal carboxylate, between about 1 and about 15 weight % of an alkaline earth metal carboxylate, between about 1 and 35 weight % of an aliphatic alcohol, between about 0.01 and about 1 weight % of an alkali metal phosphate, between about 0.01 and about 1 weight % of an alkali metal silicate, and up to about 1% by weight of a triazole. A process for producing such a liquid aircraft runway deicer blends an alkali metal hydroxide, an alkali metal phosphate and an alkali metal silicate in aqueous solution and reacts a carboxylic acid with the hydroxide in the solution to create an alkali metal carboxylate solution at a pH of about 14.2. A minor amount of a triazole is added when the pH is below 15.
    Type: Grant
    Filed: November 26, 2002
    Date of Patent: July 22, 2003
    Assignee: General Atomics International Services Corporation
    Inventors: John O. Moles, John L. Maier, Keith L. Johnson, Susan D. Royer