Cooking grate with integrated venting
10309657 ยท 2019-06-04
Assignee
Inventors
Cpc classification
F24C3/027
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F24C15/32
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F24C3/082
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
International classification
F24C3/02
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F24C15/00
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F24C15/32
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F23C15/00
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
Abstract
A cooking grate combining the cooking surface and the venting surface for a cooking appliance. The venting surface of the cooking grate may include one or more vanes. The vanes of the venting surface may direct air towards the cooking surface. The venting surface of the cooking grate may include a depending skirt defining a cavity therein. One or more cooking grates may be used in a variety of applications.
Claims
1. A cooking appliance comprising: a housing having a cooktop surface defining at least one air channel therethrough, wherein said at least one air channel includes one or more exit openings through said cooktop surface; at least one gas burner positioned in said cooktop surface; at least one cooking grate having a cooking surface and a venting surface and combined as a unitary structure, wherein both said cooking surface and said venting surface of said at least one cooking grate is disposed over said cooktop surface of said housing, said venting surface permitting air to exit from said one or more exit openings of said cooktop surface through said at least one air channel of said housing, wherein said cooking surface is adjacent said at least one gas burner and said venting surface has one or more openings therethrough to fluidly communicate with said at least one air channel; and wherein said venting surface includes an outer peripheral skirt spaced upwardly from said cooktop surface and surrounding a plurality of vanes defining said one or more openings therethrough, wherein said outer peripheral skirt is continuous and surrounds said one or more exit openings of said at least one air channel to define a downstream passageway in fluid communication from said one or more exit openings of said at least one air channel to said one or more openings through said venting surface and wherein said at least one air channel exhausts airflow from inside said housing though said one or more openings of said venting surface.
2. The cooking appliance of claim 1 wherein said venting surface is positioned at a different elevation than said cooking surface.
3. The cooking appliance of claim 1 wherein said venting surface includes said plurality of vanes tilted at an angle above a horizontal plane and towards said cooking surface to direct air towards said cooking surface.
4. The cooking appliance of claim 3 wherein an upper surface of at least one of said plurality of vanes is flush with an upper surface of said venting surface.
5. The cooking appliance of claim 1 wherein said at least one cooking grate includes a plurality of feet depending from said at least one cooking grate, wherein said depending skirt of said venting surface extends less than an outermost extent of said plurality of feet.
6. The cooking appliance of claim 1 wherein said cooking surface and said venting surface are made at least partially of cast iron.
7. The cooking appliance of claim 1 wherein said cooking surface has one or more openings therethrough to fluidly communicate with said at least one gas burner.
8. A cooking appliance comprising: a housing having a cooktop surface defining at least one air channel therethough, wherein said at least one air channel includes at least one exit opening through said cooktop surface at the rear of said housing; at least one gas burner extending from said cooktop surface; a cooking grate having a cooking surface and a venting surface and combined as a unitary structure, wherein said venting surface includes an upper surface, said venting surface having one or more vanes defining one or more openings of said venting surface, wherein said cooking surface includes an upper surface with one or more openings; said cooking surface is disposed over said at least one gas burner and said venting surface is disposed over said exit opening of said cooktop surface defining said at least one air channel, wherein said at least one air channel exhausts airflow from inside said housing through said one or more openings of said venting surface; wherein said venting surface includes an outer periphery frame, wherein said outer periphery frame is continuous and surrounds said at least one exit opening of said cooktop surface defining said at least one air channel to define a downstream passageway in fluid communication from said at least one exit opening of said cooktop surface defining said at least one air channel to said one or more openings through said venting surface; and a free end of said outer periphery frame surrounding said at least one exit opening of said cooktop surface is spaced from said cooktop surface by one or more feet of said cooking grate.
9. The cooking appliance of claim 8 wherein said one or more vanes are adjacent said upper surface of said venting surface.
10. The cooking appliance of claim 9 wherein said one or more vanes are tilted at an angle above a horizontal plane and towards said cooking surface to direct air towards said cooking surface.
11. The cooking appliance of claim 8 wherein said cooking surface and said venting surface are made of at least partially of cast iron.
12. A cooking appliance comprising: a housing having one or more gas burners and one or more air channels, wherein said one or more gas burners and one or more exit openings of said one or more air channels extends through a cooktop surface, wherein said one or more exit openings of said one or more air channels is positioned behind said one or more gas burners adjacent a back of said housing cooktop surface; at least one cooking grate having an upper surface extending across a cooking surface and a venting surface combined as a unitary structure, wherein an outer periphery of said venting surface rearwardly extends from an outer periphery of said cooking surface, wherein said venting surface includes a depending skirt adjacent and continuous about said outer periphery of said venting surface and a plurality of vanes to define a cavity in fluid communication with said one or more exit openings of said housing and said upper surface of said at least one cooking grate outside said cooking surface; wherein said depending skirt of said venting surface is spaced from and above said cooktop surface defining said one or more exit openings; and wherein said at least one cooking grate allows heat to flow upward from said one or more gas burners and allows airflow to vent exhaust from said one or more exit openings of said one or more air channels from inside said housing through said plurality of vanes of said venting surface.
13. The cooking appliance of claim 12 wherein an upper surface of at least one of said one or more vanes is flush with said upper surface of said venting surface.
14. The cooking appliance of claim 12 wherein said upper surface of said venting surface is spaced upwardly from said upper surface of said cooking surface.
15. The cooking appliance of claim 12 wherein said one or more air channels of said housing are for exhausting air from a cooking compartment within said housing or for a cooling air stream.
16. The cooking appliance of claim 12 wherein an outer periphery of said at least one cooking grate includes at least a portion of said depending skirt.
17. The cooking appliance of claim 1 wherein said cooking grate is formed by fixedly joining said cooking surface and said venting surface.
18. The cooking appliance of claim 1 wherein said cooking surface and said venting surface of said cooking grate have a fixed orientation relative to each other.
19. The cooking appliance of claim 1 wherein said cooking surface and said venting surface are formed together during manufacture.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
(1) In the drawings, like reference characters generally refer to the same parts throughout the different views. Also, the drawings are not necessarily to scale, emphasis instead generally being placed upon illustrating the principles of the invention.
(2)
(3)
(4)
(5)
DETAILED DESCRIPTION
(6) As shown in the Figures, a home cooking appliance 10, such as but not limited to a slide-in cooking range, has a housing 12 and a cooking compartment 14, such as a baking oven, convection oven, steam oven, warming drawer and the like, in the housing 12 and accessible through a door or drawer 16 in the front 12a of the housing 12. In the embodiment shown, the appliance 10 is a gas range. The appliance 10 includes a cooktop surface 18 on a top of the housing 12. The cooktop surface 18 can include one or more cooking grates 20 thereon, with at least one cooking grate 20 having a cooking surface or section 20a and a venting surface or section 20b. The cooking surface 20a of the cooking grate 20 may include one or more openings 21a in fluid communication with one or more gas burners 19. The cooking surface 20a of the cooking grate 20 may support a cooking vessel or cookware (not shown) over one or more gas burners 19. The venting surface 20b of the cooking grate 20 may include one or more openings 21b in fluid communication with, or permitting air to exit, one or more air channels or passageways 15 of the housing 12. The appliance 10 includes a control panel 11 having a plurality of control knobs or controls 11a for controlling the gas burners 19 and/or cooking compartment 14.
(7) As shown in
(8) The cooking appliance 10 may include one or more air channels 15 allowing air to circulate through, into, and/or out of the housing 12 or portions thereof. For example one or more air channels 15 may, for example, provide flow for a cooling air stream from one or more areas of the housing 12 and/or oven compartment air stream from the cooking compartment 14. One embodiment shown in
(9) As shown in
(10) The venting surfaces 20b of the cooking grate 20 may be in fluid communication with one or more air channels 15 of the housing 12. As illustrated in
(11) The outer periphery of the cooking grate 20 includes both the cooking surface 20a and the venting surface 20b such that the front of the cooking grate may include the cooking surface 20a and the back may include the venting surface 20b. Although the embodiment shows the relative positons of the cooking surface 20a and venting surface 20b to each other, there may be other arrangements. As is shown in one embodiment, one or more feet 23 engage one or more surfaces of the appliance 10 or housing 12 to space the cooking grate 20, or portions thereof, from the cooktop surface 18 or other portions of the housing 12. One or more of the feet 23 may depend from the outer periphery of the cooking grate 20 and engage the cooktop surface 18, although the feet 23 may extend from a variety of structures of the cooking grate 20. For instance, the feet may extend from one or both of the venting surface 20b and cooking surface 20a or adjacent therebetween. As is shown, one pair of feet 23 may be adjacent the control panel 11, or front of the housing 12, and another pair of feet 23 may be adjacent the exit openings 15a of the air channels 15, or back 12b of the housing 12. The feet 23 may engage the cooktop surface 18 or other portions of the housing 12. As is shown, the rear feet 23 may be spaced from the outer periphery or back of the cooking grate 20 and may be adjacent or between the cooking surface 20a and venting surface 20b. Spacing one or more feet 23 from the distal end or back of the cooking grate 20 that contains the venting surface 20b may reduce the contact of the venting surface 20b or other portions of the cooking grate 20 with the housing 12 or cooktop surface 18 and reduce possible abrasions.
(12) As is shown in
(13) As shown in the Figures, the venting surface 20b of the cooking grate 20 may include a depending skirt 26 about its outer periphery or portions thereof. The skirt 26 may coincide with one or more portions of the outer periphery of the cooking grate 20 as is shown. For example, portions of one or more of the lateral peripheral walls 26a and rearward peripheral wall 26b depend from adjacent one or more outer peripheral portions of the cooking grate 20, more specifically the back and lateral sides or portions of the cooking grate 20. The forward peripheral wall 26c may be adjacent the cooking surface 20a of the cooking grate 20. The skirt 26 or portions thereof may also engage a length of the depending feet 23 as is shown, or alternatively be disengaged therefrom. The skirt 26 of the venting surface 20b defines a cavity or passageway 27 or portions thereof. The cavity 27 of the venting surface 20b is in fluid communication between the one or more openings 21b and the exit openings 15a of the air channel 15. Within the skirt 26, one or more vanes 24 may be used to direct the flow of air in a variety of directions from the venting surface 20b. Portions of the skirt 26 may depend a variety of distances from upper surface 22b of the venting surface 20b. For example one or more of the front or forward peripheral wall 26c, rearward peripheral wall 26b, and lateral peripheral walls 26a may downwardly extend less than the distal end or outermost extent of the feet 23 or may be spaced from the cooktop surface 18. The spacing of the free end 26d of the skirt 26 away from the cooktop surface 18 or other portions of the housing 12 may produce a gap or distance D. This distance D may reduce abrasion to the cooktop surface 18. It is understood that the skirt 26 may abut the cooktop surface 18. Further shown, one or more of the walls of the skirt 26 may taper inwardly towards the upper surface 22b of the venting surface 20b thereby by narrowing the cavity 27 in the direction from the cooktop surface 18 towards the upper surface 22 of the cooking grate 20 or upper surface 22b of the venting surface 20b. For example, at least the skirt forward peripheral wall 26c and rearward peripheral wall 26b are shown in
(14) The cooking grate 20 may be of a unitary construction combining the cooking surface 20a and venting surface 20b into a single piece. For example, the cooking grate 20 may be formed from cast iron by a sand casting process that is commonly known in the art of manufacturing stove-top cooking grates. A sand core may be used to manufacture the venting surface 20b of the back section of the cooking grate 20. One advantage of the cooking grate 20 embodiment in use may be in manufacturing, installation, and/or cleaning of the cooking grate 20. Because the cooking grate 20 includes both a cooking surface 20a and a venting surface 20b as a single piece, the unitary component may be handled together instead of separate. Therefore, the time, labor, and cost to manufacture and install may be reduced. Further when cleaning the cooking grate 20, the end user may temporarily remove the cooking grate to clean both the cooking surface 20a and the venting surface 20b, as opposed to handling separately components to clean. As such in use, one or more plugs or covers may be used (not shown) to overlay the one or more exit openings 15a at the back 12b of the housing 12 when the cooking grate 20 is removed for cleaning.
(15) Although the integrated cooking grate 20 is shown in detail in the drawings, it is merely representative of one embodiment, and it is to be understood that there are a variety of shapes, sizes, orientations, constructions, and quantities which may be used and still be within the scope of the teachings herein.
(16) While several embodiments have been described and illustrated herein, those of ordinary skill in the art will readily envision a variety of other means and/or structures for performing the function and/or obtaining the results and/or one or more of the advantages described herein, and each of such variations and/or modifications is deemed to be within the scope of the embodiments described herein. More generally, those skilled in the art will readily appreciate that all parameters, dimensions, materials, and configurations described herein are meant to be exemplary and that the actual parameters, dimensions, materials, and/or configurations will depend upon the specific application or applications for which the teachings is/are used. Those skilled in the art will recognize, or be able to ascertain using no more than routine experimentation, many equivalents to the specific embodiments described herein. It is, therefore, to be understood that the foregoing embodiments are presented by way of example only and that, within the scope of the appended claims and equivalents thereto, embodiments may be practiced otherwise than as specifically described and claimed. Embodiments of the present disclosure are directed to each individual feature, system, article, material, kit, and/or method described herein. In addition, any combination of two or more such features, systems, articles, materials, kits, and/or methods, if such features, systems, articles, materials, kits, and/or methods are not mutually inconsistent, is included within the scope of the present disclosure.
(17) All definitions, as defined and used herein, should be understood to control over dictionary definitions, definitions in documents incorporated by reference, and/or ordinary meanings of the defined terms.
(18) The indefinite articles a and an, as used herein in the specification and in the claims, unless clearly indicated to the contrary, should be understood to mean at least one.
(19) The phrase and/or, as used herein in the specification and in the claims, should be understood to mean either or both of the elements so conjoined, i.e., elements that are conjunctively present in some cases and disjunctively present in other cases. Multiple elements listed with and/or should be construed in the same fashion, i.e., one or more of the elements so conjoined. Other elements may optionally be present other than the elements specifically identified by the and/or clause, whether related or unrelated to those elements specifically identified. Thus, as a non-limiting example, a reference to A and/or B, when used in conjunction with open-ended language such as comprising can refer, in one embodiment, to A only (optionally including elements other than B); in another embodiment, to B only (optionally including elements other than A); in yet another embodiment, to both A and B (optionally including other elements); etc.
(20) As used herein in the specification and in the claims, or should be understood to have the same meaning as and/or as defined above. For example, when separating items in a list, or or and/or shall be interpreted as being inclusive, i.e., the inclusion of at least one, but also including more than one, of a number or list of elements, and, optionally, additional unlisted items. Only terms clearly indicated to the contrary, such as only one of or exactly one of, or, when used in the claims, consisting of, will refer to the inclusion of exactly one element of a number or list of elements. In general, the term or as used herein shall only be interpreted as indicating exclusive alternatives (i.e. one or the other but not both) when preceded by terms of exclusivity, such as either, one of, only one of or exactly one of Consisting essentially of, when used in the claims, shall have its ordinary meaning as used in the field of patent law.
(21) As used herein in the specification and in the claims, the phrase at least one, in reference to a list of one or more elements, should be understood to mean at least one element selected from any one or more of the elements in the list of elements, but not necessarily including at least one of each and every element specifically listed within the list of elements and not excluding any combinations of elements in the list of elements. This definition also allows that elements may optionally be present other than the elements specifically identified within the list of elements to which the phrase at least one refers, whether related or unrelated to those elements specifically identified. Thus, as a non-limiting example, at least one of A and B (or, equivalently, at least one of A or B, or, equivalently at least one of A and/or B) can refer, in one embodiment, to at least one, optionally including more than one, A, with no B present (and optionally including elements other than B); in another embodiment, to at least one, optionally including more than one, B, with no A present (and optionally including elements other than A); in yet another embodiment, to at least one, optionally including more than one, A, and at least one, optionally including more than one, B (and optionally including other elements); etc.
(22) It should also be understood that, unless clearly indicated to the contrary, in any methods claimed herein that include more than one step or act, the order of the steps or acts of the method is not necessarily limited to the order in which the steps or acts of the method are recited.
(23) In the claims, as well as in the specification above, all transitional phrases such as comprising, including, carrying, having, containing, involving, holding, composed of, and the like are to be understood to be open-ended, i.e., to mean including but not limited to. Only the transitional phrases consisting of and consisting essentially of shall be closed or semi-closed transitional phrases, respectively, as set forth in the United States Patent Office Manual of Patent Examining Procedures, Section 2111.03.
(24) It is to be understood that the embodiments are not limited in its application to the details of construction and the arrangement of components set forth in the description or illustrated in the drawings. The invention is capable of other embodiments and of being practiced or of being carried out in various ways. Unless limited otherwise, the terms connected, coupled, in communication with, and mounted, and variations thereof herein are used broadly and encompass direct and indirect connections, couplings, and mountings. In addition, the terms connected and coupled and variations thereof are not restricted to physical or mechanical connections or couplings.
(25) The foregoing description of several embodiments of the invention has been presented for purposes of illustration. It is not intended to be exhaustive or to limit the invention to the precise steps and/or forms disclosed, and obviously many modifications and variations are possible in light of the above teaching.