Patents by Inventor Keith A. Emerson

Keith A. Emerson 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).

  • Laser welded water softener screen assembly
    Publication number: 20080264847
    Abstract: A water softener tank houses resin beads retained within an upper screen assembly and a lower screen assembly. The upper and lower screens are formed of material transparent to a given wavelength of a laser. The tank is formed of material that absorbs the given laser wavelength. The upper and lower screens are directly laser welded to the tank.
    Type: Application
    Filed: April 26, 2007
    Publication date: October 30, 2008
    Applicant: Wm. R. Hague, Inc.
    Inventors: Keith A. Emerson, Christopher T. Hughes
  • Dual compartment, single cabinet water softener
    Publication number: 20080264851
    Abstract: A water softener is composed of a cabinet of a resin bed, a brine tank, and a brine valve. The improved water softener has an outer housing having sides, a bottom, and an open top. A wall is disposed within the housing forming a brine chamber and a resin bed chamber for housing ion-exchange resin beads. Cross-contamination of the resin beads by the brine is prevented.
    Type: Application
    Filed: April 25, 2007
    Publication date: October 30, 2008
    Applicant: Wm. R. Hague, Inc.
    Inventor: Keith A. Emerson
  • Process for the preparation of alumina gel
    Patent number: 3951852
    Abstract: The invention provides a process for the preparation of alumina gels possessing a high alumina content, namely from 10% to 16%. The gels are useful in the production of antacid preparations. The gels are prepared by admixing a solid aluminium sulphate with an aqueous solution of a carbonate and bicarbonate, thickening the precipitated gel, washing and thickening the gel again.
    Type: Grant
    Filed: February 19, 1974
    Date of Patent: April 20, 1976
    Assignee: John Wyeth & Brother Limited
    Inventors: George Keith Emerson Gregory, James Marchant Peach, James Campbell Newell