Patents by Inventor David Charles Willard

David Charles Willard 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).

  • Hot top lining set and method of assembling
    Patent number: 4078296
    Abstract: Ingot mould lining slabs have one or more apertures in their metal contacting face. Hooks are engaged in these and used to lift the slab from a stack and hang it in position in an ingot mould. The slab is then fixed to the mould wall, for example by nailing, and then the hooks are removed.
    Type: Grant
    Filed: June 2, 1976
    Date of Patent: March 14, 1978
    Inventors: David Charles Willard, Frank Neat