Patents Represented by Attorney J. S. Steven Bobb
  • Patent number: 4474594
    Abstract: Forming discrete bodies such as briquettes of glass forming raw materials is often advantageous in melting such materials to form said glasses. Such discrete bodies are formed by combining the particulate raw materials with a liquid binder and compressing the combination. This process is improved by using a dilute silicate solution as the liquid binder and by adding the maximum amount of the silicate solution to the raw materials that still provides a free-flowing dry appearing material. This amount of silicate solution results in a maximum crush strength when the discrete bodies are prepared.
    Type: Grant
    Filed: February 14, 1983
    Date of Patent: October 2, 1984
    Assignee: PQ Corporation
    Inventor: Frank J. Lazet
  • Patent number: 4297163
    Abstract: Potassium silicate solutions combined with silanes that contain a hydrophilic functionality can be spray dried effectively to provide free-flowing powdered products.
    Type: Grant
    Filed: January 7, 1980
    Date of Patent: October 27, 1981
    Assignee: PQ Corporation
    Inventor: Jeffrey R. Thomas
  • Patent number: 4256577
    Abstract: Almost complete elimination of metal ions in aqueous effluents can be effected by treating said effluent with a base and then adding amorphous, hydrated magnesium silicate. This sequential process allows metal ion concentration to be reduced to less than 0.1 part per million while using a fairly small amount of amorphous hydrated magnesium silicate.
    Type: Grant
    Filed: June 18, 1979
    Date of Patent: March 17, 1981
    Assignee: PQ Corporation
    Inventors: Vincent J. Cassella, Mazin R. Irani