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...During the Civil War, the Confederacy established its own Patent Office which issued 266 patents, a third of which concerned implements of war.
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| Number | Title | Issue Date |
| 8127759 | Wedge shape solar cooker Developed is a solar cooker with triangle reflective sides. Above and below are two movable solar reflecting panels that can be adjusted to focus light onto a frying pan using a glass lid, an insulating pad, and a surrounding plastic bag to trap solar light for cook... | 03/06/2012 |
| 6863065 | Portable concave reflector assembly A portable concave reflector assembly having a hub member, a plurality of blade members radiating from the hub member, hub interlocking means for holding each of the blade members in selectively locked and secured relation with respect to the hub member, and blade i... | 03/08/2005 |
| 6606988 | Solar oven having a multiple zone concentrator A solar oven that includes a multiple zone concentrator and a diffuse focal zone is disclosed. The solar oven may include at least one element of symmetry. In such a case, the diffuse focal zone substantially aligns with the oven symmetry element. The dif... | 08/19/2003 |
| 6516794 | Central solar receiver A central solar receiver comprises an axisymmetric housing having front and rear ends and having an aperture at the front end, an elongated tubular window mounted in the aperture co-axially with the housing, a volumetric solar absorber disposed within the... | 02/11/2003 |
| 5893360 | Inflatable solar oven An inflatable solar oven is comprised of two sheets of flexible material which are sealed at their edges to form an enclosure. The top sheet is clear and the bottom sheet has a reflective layer. The two sheets can be inflated to form a spherical enclosure... | 04/13/1999 |
| 5524610 | Solar powered/multiple fuel cooking device A cooking device cooks food by using solar radiation, charcoal or similar solid burnable fuels, heating candles, gas, or electricity. The cooker includes a base and solar reflectors along opposite sides of the base. The reflectors pivot with respect to th... | 06/11/1996 |
| 5195504 | Portable solar oven An improved affordable, rugged, but light-weight box-oven-type solar cooker with the ability to overcome the recognized prior art limitations, such as: difficulty in achieving cooking temperatures in morning, evening and winter; restriction in reflector a... | 03/23/1993 |
| 5139010 | Solar oven A portable solar oven which innovatively combines improved elements to achieve and maintain a high internal temperature. In the shown embodiment, a box-shaped insulated body shell includes a pair of side walls, a front wall, a back wall, and a base. The f... | 08/18/1992 |
| 5090399 | Solar cooker with a parabolic reflector Solar cooker with a fold-up parabolic reflector comprising two stacks of reflecting flexible strips (19, 20) unfoldable so as to form a reflector. Strips of each stack are connected to one another by means of a pliable band fastened to the back of each of... | 02/25/1992 |
| 4848320 | Solar oven A solar oven includes an oven chamber having an open end and an interior cooking chamber. A collapsible reflector assembly, having a plurality of hinged reflective panels, can be folded to a collapsed position for storage or transport, or opened during us... | 07/18/1989 |
| 4637376 | High efficiency solar heater A heating chamber is defined by canted side walls in inverse pyramidal configuration, the base of the pyramid being open for admission of sunlight and the tip of the pyramid being truncated by a bottom plane. The chamber is adapted to positioning with the... | 01/20/1987 |
| 4612914 | Portable collapsible solar survival apparatus This invention relates to a portable, high performance solar powered oven, distiller, heater and light directing survival apparatus which is fabricated of light weight, flexible materials that can be easily collapsed for convenient mobility. The invention... | 09/23/1986 |
| 4583521 | Portable solar cooking apparatus The cooking apparatus has a reflector shaped to concentrate the sun's rays and direct them onto a cooking vessel. The reflector is formed of at least two panels, each of which has a surface contour which interfits the other when they are folded together f... | 04/22/1986 |
| 4446854 | Solar oven 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 ... | 05/08/1984 |
| 4417566 | Solar oven access door An improved access door for a solar oven. The access door's inner surface, which holds a disposable food tray, is provided with a depressed area below the food tray to permit deformation of the tray bottom when the thickness of food in the tray exceeds th... | 11/29/1983 |
| 4292957 | Solar oven A portable, foldable solar oven is provided wherein the basic construction material is ordinary cardboard, some surfaces of which are coated with a reflective material. The portable oven doubles as an insulated container for keeping refrigerated foodstuff... | 10/06/1981 |
| 4281644 | Solar cooker A pair of open sided housing halves including corresponding closed and open sides as well as corresponding sets of peripheral sides extending about major portions of the closed sides and extending toward and bounding corresponding major portions of the op... | 08/04/1981 |
| 4262660 | Solar cooker This disclosure is directed to a portable, knock down, solar cooker having a box-shaped supporting body to which an expandible parabolic reflector and associated solar oven can be readily assembled and disassembled without the use of any hand tools, and i... | 04/21/1981 |
| 4257404 | Reflector connectors An interlocking reflector panel guide for rigidly fixing the angular relationship of foldable, extendable reflector panels with respect to a flat collector plate. The rigid reflective extension panels surround the open side of a solar oven and are fixed i... | 03/24/1981 |
| 4236508 | Solar cooker and method of assembly A method of assembling from kit components a solar oven and in so doing, teaching the assembler the principals involving insulation, reflection, solar ray conversion to heat, temperature conservation and the fine art of cookery.... | 12/02/1980 |
| 4221059 | Solar food dryer A box-shaped housing has side and end walls together with a back wall, leaving an opening at its front. A cover of material transparent to sunlight removably closes the front. Inside are a plurality of shelves mounted so as to be tilted at an angle with r... | 09/09/1980 |
| 4220141 | Portable solar cooker A portable solar cooker of the type having an insulated housing with an oven compartment enclosed therein and associated reflector elements is adapted for cooking with the housing and oven compartment in a tilted or level position. When employing only the... | 09/02/1980 |
| 4130106 | Solar stove 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 opposi... | 12/19/1978 |
| 4112917 | Solar-ray heating apparatus The concave reflector of a solar-ray heating apparatus is supported on a vertical post by an arcuate rod fixed to the center of the reflector, on its concave side and disposed on a circular arc centered about the focal point of the reflector. This arcuate... | 09/12/1978 |
| 4083357 | Solar cooker A solar heating device for the cooking of food, consisting of a parabolic trough reflector and having support legs attached at the approximate center of gravity of the reflector and oven assembly. The reflector longitudinal supports serving to hold a cook... | 04/11/1978 |
| 4077391 | Portable solar cooker and the solar panel used therein A portable solar cooker comprises an internally insulated metal housing having an oven compartment for slidably receiving a cooking tray. A plurality of adjustable sun reflectors arranged on the top of the housing direct the sun's radiation into a heat-ge... | 03/07/1978 |
| 3938497 | Apparatus for solar cooking Solar cooking apparatus is provided with a frame or base readily movable to locate the apparatus in a favorable exposure to the sun and embodies an oven provided with mirrors or reflectors arranged to direct the suns rays onto a food support or the like p... | 02/17/1976 |
