Patents by Inventor Thomas E. Hyans

Thomas E. Hyans 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: 4459318
    Abstract: A self-lubricating fill tube comprises an extended conduit having a coating of hydrophilic polymer extending over at least a portion of an outer surface of the conduit. A method for forming the self-lubricating fill tube comprises preparing the surface of the fill tube by cleaning and irradiating the fill tube with gamma radiation in a dosage of about 0.5 Mrads. The fill tube is immersed in a ethylenically unsaturated monomer solution containing oxidizable metallic ions which initiates polymerization of the monomer onto the exposed surface of the fill tube. The fill tube is removed from the monomer solution leaving a hydrophilic polymer coating on the surface of the fill tube. The polymer coated fill tubes are rinsed with deionized water.
    Type: Grant
    Filed: June 10, 1983
    Date of Patent: July 10, 1984
    Assignee: American Hospital Supply Corporation
    Inventor: Thomas E. Hyans