Patents by Inventor Bobby G. Chestang

Bobby G. Chestang 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).

  • Process for protecting asbestos-cement bearing surfaces in recirculating cooling water systems
    Patent number: 4132526
    Abstract: The invention is directed to a method of inhibiting the destructive effect of water in contact with an asbestos-cement containing structure due to the leaching of the water soluble components of the cement, e.g., calcium and magnesium, which comprises the addition to the water of a material which will change the interfacial surface of the cement structure such that the overall solubility of soluble components of the cement will be reduced. The materials which will be suitable for the purpose are water soluble phosphates, water soluble phosphonic acid derivatives, water soluble polymers of acrylic acid, water soluble silicates, and mixtures thereof.
    Type: Grant
    Filed: November 12, 1976
    Date of Patent: January 2, 1979
    Assignee: Betz Laboratories, Inc.
    Inventors: Richard C. Schwarz, Bobby G. Chestang