Patents by Inventor Alan Bornat

Alan Bornat 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).

  • Production of electrostatically spun products
    Patent number: 4689186
    Abstract: Preparation of products having a tubular portion comprising electrostatically spinning a fiberizable liquid, the electrostatic field being distorted by the presence of an auxiliary electrode, preferably so as to encourage the deposition of circumferential fibers.
    Type: Grant
    Filed: December 5, 1985
    Date of Patent: August 25, 1987
    Assignees: Imperial Chemical Industries PLC, Univ. of Liverpool
    Inventor: Alan Bornat
  • Shaping process
    Patent number: 4345414
    Abstract: A process for setting in a desired shape a product at least a portion of which comprises electrostatically spun fibres is disclosed. The process comprises maintaining the product in the desired shape at a temperature below the melding temperature of the electrostatically spun fibres. The desired shape may be the as-spun shape of the product or a shape obtained by deformation of the product, i.e. the product is reshaped. The fibres preferably comprise a polyurethane and reshaping is preferably effected on a former. The reshaped product may be employed as a vascular prosthesis.
    Type: Grant
    Filed: November 15, 1979
    Date of Patent: August 24, 1982
    Assignees: Imperial Chemical Industries Limited, University of Liverpool
    Inventors: Alan Bornat, Roy M. Clarke
  • Electrostatic spinning of tubular products
    Patent number: 4323525
    Abstract: A process for electrostatically spinning fiber forming material. The spun fiber is collected on a removable sheath on a rotating mandrel. The sheath is electroconductive. The tubular spun fiber product is separated from the sheath.
    Type: Grant
    Filed: April 19, 1979
    Date of Patent: April 6, 1982
    Assignees: Imperial Chemical Industries Limited, University of Liverpool
    Inventor: Alan Bornat