Solar oven
First Claim
1. A solar powered oven, comprising:
- (a) a generally hemispherical oven body assembly having inner and outer hemispherical shells, said inner shell defining an interior supporting surface for, in use, carrying a cooking container, said outer hemispherical shell substantially concentric spaced from said inner shell;
(b) a cover assembly of solar radiation permeable material;
(c) means for releasably attaching said cover assembly to said oven body over the non-hemispheric face thereof;
(d) reflector means for directing solar radiation through said cover assembly;
(e) means for indicating alignment of the oven face with a source of solar radiation; and
(f) further comprising thermally isolating spacer means for separating and spacing said outer hemispheric shells from said inner hemispherical shell and aligning the shells in substantially concentric relationship, wherein said spacer means comprises a plurality of at least three cork bodies located at spaced apart locations between said hemispheric shells.
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Accused Products
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. A cross member formed from intersecting rods holds the reflector panels in operative position and cooperates with the fastener between the shells in providing a sighting aid for aiming the oven. A frusto-conical base supports the oven body for gimballed aiming and is sized to fit inside the oven cavity for storage.
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Citations
12 Claims
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1. A solar powered oven, comprising:
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(a) a generally hemispherical oven body assembly having inner and outer hemispherical shells, said inner shell defining an interior supporting surface for, in use, carrying a cooking container, said outer hemispherical shell substantially concentric spaced from said inner shell; (b) a cover assembly of solar radiation permeable material; (c) means for releasably attaching said cover assembly to said oven body over the non-hemispheric face thereof; (d) reflector means for directing solar radiation through said cover assembly; (e) means for indicating alignment of the oven face with a source of solar radiation; and (f) further comprising thermally isolating spacer means for separating and spacing said outer hemispheric shells from said inner hemispherical shell and aligning the shells in substantially concentric relationship, wherein said spacer means comprises a plurality of at least three cork bodies located at spaced apart locations between said hemispheric shells. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A solar powered oven, comprising:
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(a) a generally hemispherical oven body assembly defining an interior supporting surface for, in use, carrying a cooking container; (b) a cover assembly of solar radiation permeable material; (c) means for releasably attaching said cover assembly to said oven body over the non-hemispheric face thereof; (d) reflector means for directing solar radiation through said cover assembly; (e) means for indicating alignment of the oven face with a source of solar radiation; and (f) wherein said cover attaching means comprises; (1) a hinge pin spaced radially from the edge of said oven body, oriented substantially parallel to the plane of the oven face and approximately perpendicular to a radius of the hemispherical oven body passing therethrough; (2) bracket means mounting said hinge pin to the oven body; and (3) a U-shaped hinge means having one wall thereof connected to said cover assembly and adapted to receive said hinge pin through the open top thereof for pivotal motion on the hinge pin. - View Dependent Claims (8, 9, 10, 11, 12)
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Specification