Patents by Inventor Mildred L. Clevett

Mildred L. Clevett 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: 4446854
    Abstract: A hemispherical oven body is formed from two concentric, spaced apart hemispherical shells having thermal insulation between and with spacing maintained by thermally insulating spacers in a triangular array. A single elongated fastener through the center point of each shell holds the shells together and provides a sighting point for aiming the oven at the sun. The shell edges at the oven face are closed by a resilient seal ring that extends above the shell edges and contacts a cover disk of glazing material. Combination hinge/handles are located at diametrically opposite sides of the cover disk, and a hinge pin on an edge of the oven body engages one of the handle/hinges. A reflector panel assembly includes a closed geometric figure formed by hinge rods connected at opposite ends to common anchors, which connect the hinge rods to the cover disk. The reflector panels pivot on the hinge rods to fold against the cover disk.
    Type: Grant
    Filed: July 20, 1981
    Date of Patent: May 8, 1984
    Inventors: Merton L. Clevett, Mildred L. Clevett
  • Patent number: 4130106
    Abstract: A solar stove having a casing with four rectangular reflective panels foldably attached and surrounding the perimeter of the upper edge of the casing, the panels being foldable against the casing to form a neat package. Each panel is attached to an opposite panel by a flexible cord, the cords crossing each other when the panels are opened to aid the user in aiming the solar stove directly into the sun. Triangular panels are removably attached to the sides of adjacent rectangular panels to fill the space created when the rectangular panels are opened to approximately 45.degree. past vertical. The oven is a drawer fitting in the casing and removable either horizontally or vertically, the drawer having multiple layer construction for heat retention and a dark interior surface for converting solar rays to heat.
    Type: Grant
    Filed: March 23, 1977
    Date of Patent: December 19, 1978
    Inventors: Merton L. Clevett, Mildred L. Clevett
  • Patent number: D253684
    Type: Grant
    Filed: July 5, 1977
    Date of Patent: December 18, 1979
    Inventors: Merton L. Clevett, Mildred L. Clevett