Patents by Inventor Robert E. Schiffner

Robert E. Schiffner 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: 4549811
    Abstract: A splatter shield is provided for use with a conventional portable mixer having a speed control switch and a pair of laterally spaced drive sockets. A pair of beaters each includes one end portion adapted to be detachably secured within the drive sockets, a shaft having a generally circular member for keeping the ingredients being mixed out of the drive sockets, and beater blades at the opposite end portion. A mixing bowl holds ingredients to be mixed by the beater blades and a splatter shield having a flat bottom is operably disposed on the rim of the bowl for preventing the escape of ingredients therefrom when the mixer is in operation. The shield is preferably made of polypropylene for ease of cleaning, unbreakability and chip-proof characteristics. A central portion of the top integral surface is raised and reinforcing ribs are disposed about the periphery of the top shield surface and radially in toward the raised portion.
    Type: Grant
    Filed: May 26, 1983
    Date of Patent: October 29, 1985
    Inventors: Robert E. Schiffner, Susan R. Montgomery