Patents by Inventor Robert E. Finch

Robert E. Finch 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: 4517972
    Abstract: A method and apparatus for applying a therapeutic article to the body of a patient uses adhesive-backed strips which are applied around the injury, and the article is attached to the strips. The strips and the article preferably employ Velcro-type material, but may alternatively use magnetic substances, to removably secure the article to the patient. According to the method, the physician may determine the proper location of the article and apply the strips to hold the article there. The article may then be applied by a nurse or the patient.
    Type: Grant
    Filed: January 11, 1983
    Date of Patent: May 21, 1985
    Inventor: Robert E. Finch, Jr.
  • Patent number: 4222861
    Abstract: This invention relates to a method and treating agent for increasing the yield of larger particles of fine oxidized coal where the particle size is 28.times.100 mesh and preferably 28.times.70 mesh and where said coal particles are concentrated by froth flotation. The method consists of utilizing as a promoter an alkali metal or ammonium polyacrylate. A preferred promoter is about 0.05-1.5 lbs of sodium polyacrylate latex per ton of dry coal (0.017-0.5 lb of dry sodium polyacrylate per ton of dry coal), having an average molecular weight of about 100,000, to 1,000,000 and more, with a preferred range of 1,000,000 or more.This preferred promoter or frothing aid for oxidized coal is a water-in-oil latex of sodium polyacrylate used with a water-in-oil emulsifier and preferably used with an alcohol-type frother.
    Type: Grant
    Filed: June 8, 1978
    Date of Patent: September 16, 1980
    Assignee: Nalco Chemical Company
    Inventor: Robert E. Finch
  • Patent number: 4222862
    Abstract: A method and treating agent for increasing the yield of oxidized coal or coal from surface or strip mines where said coal particles are concentrated by froth flotation. The method consists of utilizing as a promoter or frothing aid about 0.05-1.5 lbs of sodium polyacrylate latex per ton of dry coal (0.017-0.5 lb of dry sodium polyacrylate per ton of dry coal), having an average molecular weight of about 100,000 to 1,000,000 and more, with a preferred range of 1,000,000 or more.The preferred promoter or frothing aid for oxidized coal is a water-in-oil latex of sodium polyacrylate and preferably used with an alcohol-type frother. The latex may be utilized neat and self inverts with the assistance of an oil-in-water surfactant hydrophilic (or activator) and the water in the system upon application to form an oil-in-water emulsion, or it may be used as a two-part system with an activator (aqueous) to promote inversion.
    Type: Grant
    Filed: October 6, 1978
    Date of Patent: September 16, 1980
    Assignee: Nalco Chemical Company
    Inventor: Robert E. Finch
  • Patent number: 4162966
    Abstract: A method and treating agent for increasing the yield of deep mined coal mined from a site 100 feet or more below the surface where the particles in the coal are concentrated by froth flotation. This method consists of utilizing as a promoter or frothing aid about 0.05-1.5 lbs of sodium polyacrylate latex per ton of dry coal (0.017-0.5 lb of dry sodium polyacrylate per ton of dry coal), having an average molecular weight of about 100,000 to 1,000,000 and more, with a preferred range of 1,000,000 or more.The preferred promoter or frothing aid for deep mined coal is a water-in-oil latex of sodium polyacrylate preferably used with an alcohol-type frother. The latex may be utilized neat and self inverts with the assistance of an oil-in-water surfactant (or activator) and the water in the system upon application to form an oil-in-water emulsion, or it may be used as a two-part system with an activator (aqueous) to promote inversion.
    Type: Grant
    Filed: January 19, 1978
    Date of Patent: July 31, 1979
    Assignee: Nalco Chemical Company
    Inventor: Robert E. Finch
  • Patent number: 4024216
    Abstract: Uranium yields, derived from alkaline leaching of a uranium ore, are increased and at the same time the need for fresh water to dissolve a flocculant is eliminated by using sodium polyacrylate as the flocculant, diluted with and dissolved by system water.
    Type: Grant
    Filed: July 2, 1975
    Date of Patent: May 17, 1977
    Assignee: Nalco Chemical Company
    Inventors: Robert E. Finch, Robert H. Scala