Patents by Inventor George Ryckman, deceased

George Ryckman, deceased 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: 4368021
    Abstract: For the manufacture of oval dishes, a machine has two work supports arranged to rotate moulds eccentrically for clay on the moulds to be shaped into oval forms. At a first, spreading, station the clay is engaged by a pancake-type spreading roller which squeezes a piece of clay into an oval shape. The mould is transferred to a second, or finishing, station where a finishing roller rolls the clay to the desired configuration of the oval dish. The spreading roller is driven. The finishing roller may be driven or it may rotate freely, a brake being applied to the free roller, for the end of a finishing operation, to improve the surface finish of the ware.
    Type: Grant
    Filed: March 2, 1981
    Date of Patent: January 11, 1983
    Assignee: Service (Engineers) Limited
    Inventor: George Ryckman, deceased