Claims
- 1. In combination an oven having means defining a housing having side walls, a top wall, and being open at its lower end, means for vertically reciprocally moving said oven housing between upper, inoperative position, and lower, operative position, heat emitting elements providing heat interiorly of said housing, means supporting said heat emitting elements on side walls of said housing spacedly from said top wall, a heat conserver being disposed interiorly of said housing comprising a four-sided frame body being open to the bottom, means rendering said heat conserver vertically shiftable relative to said housing between heat conserver-operative condition wherein the related sides thereof are in aligned relationship with the heat emitting elements provided on the confronting side walls of said housing during inoperative position of said oven housing, and heat conserver-inoperative condition when the same is presented spacedly above, in non-aligned relationship with the respective heat emitting elements when said oven housing is in operative condition whereby heat loss from the interior of the oven housing is substantially inhibited during inoperation of said oven, said heat conserver having outwardly presented surface-forming portions on the sides thereof contoured to direct heat impinging thereon from said heat emitting elements returningly toward said elements.
- 2. A heat conserver as defined in claim 1 and further characterized by said heat conserver frame body being contoured complementary to the interior of the said oven housing, said heat conserver being of reduced area relative to the cross-sectional area of said oven housing whereby the surface-forming portions of said heat conserver are in adjacency to, but spaced from, the heat emitting elements when in heat conserver-operative condition.
- 3. A heat conserver as defined in claim 1 and further characterized by said heat conserver frame body having a plurality of horizontally disposed, elongated components mutually secured at their ends to define an open top and an open bottom structure.
- 4. A heat conserver as defined in claim 3 and further characterized by said heat conserver frame being of contour complementary to the interior of the said oven housing, each frame component having a length substantially as great as that of the heat emitting element on the adjacent side wall of said housing.
- 5. A heat conserver as defined in claim 4 and further characterized by each of said frame components having a height substantially as great as that of the heat emitting element on the adjacent side wall portion of said housing.
- 6. A heat conserver as defined in claim 3 and further characterized by each of said components having inner and outer faces, the outer face of each component being in confronting relationship to the heat emitting element of the adjacent side wall of said housing when said housing is in operative position, and with heat reflective surface and non-heat absorbing means provided on the outer face of each frame component.
- 7. A heat conserver as defined in claim 3 and further characterized by said heat conserver frame being of quadrilateral character.
- 8. A heat conserver as defined in claim 1 and further characterized by the contour of the portions of said heat conserver directing heat returningly toward said heat emitting elements being of concave character.
- 9. A heat conserver as defined in claim 8 and further characterized by said heat emitting elements being of the infrared emitter type.
- 10. A heat conserver as defined in claim 1 and further characterized by the contour of the portions of said heat conserver directing heat returningly toward said heat emitting elements being of outwardly opening, generally V-shape in cross section.
- 11. A heat conserver as defined in claim 10 and further characterized by said heat emitting elements being of the infrared emitter type.
- 12. A heat conserver as defined in claim 3 and further characterized by said heat conserver frame being coaxial with the vertical axis of said oven housing.
- 13. A heat conserver as defined in claim 1 and further characterized by said means for vertically shifting said heat conserver comprising vertically presented slide rods, means engaging the lower ends of said slide rods to said heat conserver, said housing top wall having openings for extension therethrough of said slide rods, and means slideably engaging said slide rods upwardly of said housing when the same is in upper position.
- 14. A heat conserver as defined in claim 1 and further characterized by said means rendering said heat conserver vertically shiftable comprising vertically presented rods, means engaging said rods at their lower ends to said heat conserver, said housing top wall having openings for slideable extension of said rods therethrough, a counterweight, and flexible means interengaging said rods at their upper ends to said counterweight.
Parent Case Info
This is a continuation of application Ser. No. 630,808 filed Nov. 11, 1975, now abandoned; which is a continuation of application Ser. No. 434,816 filed Jan. 21, 1974 abandoned.
US Referenced Citations (10)
Foreign Referenced Citations (1)
Number |
Date |
Country |
2082861 |
Oct 1971 |
FRX |
Continuations (2)
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Number |
Date |
Country |
Parent |
630808 |
Nov 1975 |
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Parent |
434816 |
Jan 1974 |
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