Patents by Inventor Frederick Oldham

Frederick Oldham 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: 4094950
    Abstract: A system is disclosed for making articles of footwear by the so-called dipping process. The system comprises placing under a last a mould for a sole and/or heel. When the last and mould are dipped in molten plastics material, the material solidifies to form a thin skin on the last in the usual way and is contained in the mould until it sets to form the relatively heavy sole and/or heel. The mould contains the molten plastics either by virtue of being provided with peripheral walls or, for thinner soles, by virtue of friction preventing the molten material from escaping. The mould may be constituted by an element to which the plastics material adheres and becomes part of the sole unit. SUThis invention relates to the manufacture of footwear and it is an object of the invention to provide a novel method of manufacturing footwear.Having regard to the antiquity of the art of manufacturing footwear a relatively recent innovation is the moulding of a complete shoe, boot or the like as a homogeneous unit, i.e.
    Type: Grant
    Filed: May 3, 1977
    Date of Patent: June 13, 1978
    Assignee: Robert Tilden Clark
    Inventor: Frederick Oldham