Patents by Inventor Fernando V. Guarderas

Fernando V. Guarderas 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: 4102268
    Abstract: A type surface useful in an impact printer having type characters thereon particularly configured to print large solid blocks. Each type character is comprised of a plurality of spaced land area portions distributed in an area of the type surface whose periphery conforms to the shape and size of the solid block to be printed. The plurality of land area portions present a lower effective contact area to an impacting hammer than would a solid land area of the same periphery, therefore yielding higher density print. The spaces between the land area portions fill in on the printed character as a consequence of smear attributable to the relative movement between the type surface and ink ribbon.
    Type: Grant
    Filed: June 30, 1975
    Date of Patent: July 25, 1978
    Assignee: Dataproducts Corporation
    Inventors: Fernando V. Guarderas, Luis Leon