Stoves and furnaces – Stoves – Cooking
Reexamination Certificate
2002-01-28
2004-10-26
Cocks, Josiah (Department: 3743)
Stoves and furnaces
Stoves
Cooking
C126S21400R
Reexamination Certificate
active
06807962
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to a kitchen gas cooking stove with a glass-ceramic, glass, or ceramic top, a gas cooktop with a glass-ceramic, glass, or ceramic top, and a glass-ceramic, glass, or ceramic top of a cooking stove or cooktop with a venting structure thereon.
2. Background Information
In cooking stoves in which component-parts, such as, gas burners, or vapor removal structures, such as a venting structure, are arranged in the top, there arises the danger that the plate or top may become damaged upon contact of the component-part with the plate upon installation and removal of the component-part in the top.
In German Patent No. 41 33 409 C2 (corresponding to U.S. Pat. No. 5,313,929) an assembly is described in which at the edge portion, or periphery, of the aperture of the top there are provided an upper permanently elastic resilient connecting and sealing element, to serve as connecting and sealing element, as well as a lower permanently elastic resilient connecting and sealing element being provided. The elements comprise prefabricated rings which need to be mounted during assembly and this makes installation cumbersome.
German Patent No. 41 33 409 C2 (corresponding to U.S. Pat. No. 5,313,929) further describes how a permanently elastic resilient connecting and sealing element can be glued to the edge portion of the aperture and to the gas burner. In this arrangement, this sealing element may be configured per se of a glued portion which is annular in shape, permanently elastic in characteristic, and configured to be disposed between the peripheral portion of the aperture and a connecting surface of the gas burner. This permanently elastic glued layer can then be configured with such a thickness that it is fluid-tight, on the one hand, and resilient, on the other hand. The arrangement has the disadvantage that the glued portion needs to be provided during mounting of the burners to the glass-ceramic plate. Gluing is a disadvantage in maintenance work since the gas burner can only be removed with difficulty and the gas burner subsequently can not be located tightly at the plate.
In German Patent No. 44 42 572 C1 (corresponding to U.S. Pat. No. 5,813,395) a further arrangement is described, of the protection of the peripheral portions of apertures in formed bodies of glass-ceramic, glass or ceramic. In this arrangement, a metallic cover or fitting is provided which extends over the peripheral portion of the aperture of the form body. Such a device comprises an additional part of the assembly.
German Patent No. 28 19 118 C2 (corresponding to U.S. Pat. No. 4,492,217) describes the gluing of a glass plate, or a glass-ceramic plate, to a frame. A pertinent glue comprises a silicon mass.
In a pamphlet of the firm HEIDELBERGER BAUCHEMIE GmbH, D-83291, Traunreut, a mono-component silicon mass having the trade name PACTAN is described and which is suitable for gluing and sealing. Depending on the requirements and the application situation, silicon masses with varying temperature stabilities can be employed. Standard silicone mass has a continuous use temperature of 180 degrees Celsius. High-temperature silicone mass can be continuously subjected to 260 degrees Celsius and for short periods of time to approximately 300 degrees Celsius.
The sealed arrangement of gas burners at a glass-ceramic plate is also known from U.S. Pat. No. 5,046,477. As is the case with German Patent No. 41 33 409 C2 (corresponding to U.S. Pat. No. 5,313,929), prefabricated seal rings are used.
OBJECT OF THE INVENTION
It is an object of the invention to provide a kitchen gas cooking stove with a glass-ceramic, glass, or ceramic top, a gas cooktop with a glass-ceramic, glass, or ceramic top, and a glass-ceramic, glass, or ceramic top of a cooking stove or a cooktop with a venting structure thereon.
Further, it is an object of one aspect of the invention to propose an arrangement of the type mentioned in the foregoing which avoids contact of the component-part with the plate and which achieves, in simple manner, to seal the component-part at the plate and the component-part is easily assembled and disassembled at the plate.
SUMMARY OF THE INVENTION
The invention teaches, in one embodiment, a kitchen cooking stove for preparing food, such as, cooking frying, roasting, sauteing, and boiling food, said stove comprising: a stove body; said stove body being configured with a support to support said stove body; said stove body being configured with a cook top to prepare food; said cook top comprising a portion; said portion comprising a glass-ceramic flat top; said glass-ceramic flat top having a first, upper, surface and a second, lower, surface, opposite said first surface; at least one cutout portion extending between said first surface and said second surface; at least one gas burner arrangement; said at least one gas burner arrangement being disposed adjacent to said at least one cutout portion; said at least one gas burner arrangement comprising a head portion being configured to emit and combust a flow of gas; at least one gas burner configuration comprising a cooking utensil receiving apparatus; said cooking utensil receiving apparatus being configured to receive a bottom of a cooking utensil to be heated by said at least one gas burner arrangement; said at least one gas burner arrangement being disposed at least with a portion thereof adjacent to said at least one cutout portion; said portion of said at least one gas burner arrangement adjacent to said at least one cutout portion comprising a support portion; apparatus to conduct a gas to said head portion of said at least one gas burner arrangement; apparatus to control a flow of gas to said at least one gas burner arrangement; a brushed on or sprayed on elastomeric silicone body securely bonded to said support portion of said at least one gas burner arrangement; said elastomeric silicone body comprising a silicone; said silicone being configured with a sufficient heat resistance to withstand heat produced by said at least one gas burner arrangement; said elastomeric silicone body being securely bonded to said support portion and configured to remain firmly attached to said support portion upon said at least one gas burner arrangement being removed from said glass-ceramic flat top; said elastomeric silicone body being configured and disposed to prevent contact between said at least one cutout portion and said support portion by maintaining a separation between said at least one gas burner arrangement and said glass-ceramic flat top and thus to prevent contact between said at least one gas burner arrangement and said glass-ceramic flat top; said elastomeric silicone body being configured and disposed to seal said at least one cutout portion and thus minimize cooking spills spilling on said glass-ceramic flat top from seeping along said elastomeric silicone body toward said cutout portion; at least a portion of said elastomeric silicone body being disposed in contact with said glass-ceramic flat top and being configured to be releasable from said glass-ceramic flat top; said bonded elastomeric silicone body being configured to be removed, together with said at least one gas burner arrangement, with minimized damage to said elastomeric silicone body, upon removal of said at least one gas burner from said glass-ceramic flat top.
In accordance with another feature of the invention there is provided a cooktop for preparing food; said cooktop comprising: a top portion; said top portion comprising a top; said top comprising at least one of: a glass-ceramic top, a glass top, and a ceramic top; said top having a first, upper, surface and a second, lower, surface, opposite said first surface; at least one cutout portion extending between said first surface and said second surface; at least one gas burner arrangement; said at least one gas burner arrangement being disposed adjacent to said cutout portion; said at least one gas burner arrangement comprising a head portion being configured to emit and combust a flow
Taplan Martin
Wegert Theodore Allen
Cocks Josiah
Nils H. Ljungman & Associates
Schott Glas
LandOfFree
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