Patents by Inventor Lois J. Puustinen

Lois J. Puustinen 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: 4037793
    Abstract: A hand-holdable citrus grating element having a shallow concave grating surface conforming substantially in size and shape to a selected segment of the exterior surface of a citrus fruit, such element having a plurality of apertures formed therethrough and surrounded by one or more protrusions for gratingly removing only the extreme outer oil-bearing portion of the citrus fruit rind as the grating element and citrus fruit are moved against one another in conforming contact. The apertures formed through the grating element permit the grated rind to pass through the element as the rind is scraped from the fruit. In one embodiment, a small dish-like receptacle is provided to facilitate holding the grating element and maintaining its grating surface in conforming contact with the surface of the citrus fruit as the fruit and element are moved against each other, and for receiving and retaining the oil-bearing portion of the rind as it is scraped from the fruit and passed through the apertures in the element.
    Type: Grant
    Filed: February 27, 1976
    Date of Patent: July 26, 1977
    Inventor: Lois J. Puustinen
  • Patent number: D251103
    Type: Grant
    Filed: March 21, 1977
    Date of Patent: February 20, 1979
    Inventor: Lois J. Puustinen