Patents by Inventor Peter J. Carr

Peter J. Carr 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).

  • Manufacture of a body cavity insert
    Patent number: 4472342
    Abstract: A method of making a body cavity insert, e.g. an ear insert, comprises deforming by pressure a pressure deformable sheet of material over an impression of a body cavity, e.g. an ear canal, and separating the impression from the sheet of material without permanently disturbing the shape into which the sheet has been deformed to leave a mould cavity in the sheet of material. A moulding material is then introduced into the mould cavity to provide, when the moulding material solidifies, the body cavity insert.Typically the pressure deformable sheet of material is a sheet of non-toxic, thermoplastics material, e.g. a polycarbonate or silicon rubber material. One example of a suitable moulding material is an acrylic plastics material.
    Type: Grant
    Filed: December 30, 1981
    Date of Patent: September 18, 1984
    Inventor: Peter J. Carr