Canted Grill
20190290065 ยท 2019-09-26
Inventors
- Benjamin Ebersold (Trumbull, CT, US)
- Michael Kittredge Costen (Milford, CT, US)
- Chul Hee Lee (Seoul, KR)
Cpc classification
A47J2037/0777
HUMAN NECESSITIES
International classification
Abstract
A canted grill has a lid, a base, a cooking grate and a charcoal grate. The lid and base collectively form a cooking chamber with the cooking grate and charcoal grate inside. The lid has a deep side on its right and a shallow side on its left. The base has a deep side on its left and a shallow side on its right. The charcoal grate holds charcoal in the deep side of the base. This provides direct heat to food placed on the cooking grate above it under the shallow side of the lid. Food placed on the cooking grate on the shallow side of the base and under the deep side of the lid is away from the charcoal and heated indirectly.
Claims
1. A canted grill comprising: a) a lid comprising: i) a top deep side on a right side of said lid; ii) a top shallow side on a left side of said lid; and iii) a lower lip; and b) a base comprising: i) a bottom shallow side on a right side of said base; ii) a bottom deep side on a left side of said base; and iii) an upper lip wherein: c) said lower lip of said lid fits on said upper lip of said base to form a cooking chamber comprising: i) a front face and a back face separated by a depth; ii) a top face and a bottom face separated by a height; and iii) a left face and a right face separated by a width; and d) the ratio of said width to said height is in the range of 1.2 to 2.3.
2. The canted grill of claim 1 wherein: a) there is an angle between said top face and said right face; and b) said angle between said top face and said right face is in the range of 80 to 120 degrees.
3. The canted grill of claim 1 wherein said top face is at a longitudinal angle with respect to said lower lip in the range of 10 degrees to 45 degrees.
4. The canted grill of claim 1 wherein said top face is at a longitudinal angle with respect to said lip of about 20 degrees.
5. The canted grill of claim 1 wherein said right side of said lid is on a viewer's left when said viewer is viewing said front face of said cooking chamber.
6. The canted grill of claim 1 wherein said right side of said lid when is on a viewer's left when said viewer is viewing said back face of said cooking chamber.
7. The canted grill of claim 1 wherein: a) said top face is joined to said right face at a top vertex; b) the angle between said top face and said right face is in the range of 80 to 120.
8. The canted grill of claim 7 wherein said angle between said top face and said right face is about 102.
9. The canted grill of claim 7 wherein said top vertex has a radius of curvature in the range of 2.5 cm to 25 cm.
10. The canted grill of claim 1 which further comprises: a) a top vent in said top deep side of said lid; and b) a bottom vent in said bottom deep side of said base.
11. The canted grill of claim 1 which further comprises: a) a cooking grate at about the level of said upper lip of said base; and b) a charcoal grate within said base wherein said charcoal grate is shaped to form a firebox to hold charcoal in said bottom deep side of said base.
12. The canted grill of claim 11 wherein: a) said cooking grate comprises a horizontal center portion and a side wing; and b) said side wing is attached to said center portion with a grate hinge such that said side portion can be opened up while said center portion remains horizontal.
13. The canted grill of claim 1 which further comprises a longitudinal rear brace wherein said rear brace extends horizontally across said back face of said base and is attached thereto to provide structural support.
14. The canted grill of claim 1 which further comprises a table-top base adapted to hold said cooking chamber at a convenient cooking height on a table top.
15. The canted grill of claim 1 which further comprises a free-standing base adapted to hold said cooking chamber at a convenient cooking height on the ground.
16. The canted grill of claim 1 which further comprises: a) a table-top base adapted to hold said cooking chamber on a table top; and b) a free-standing base adapted to hold said cooking chamber on the ground wherein: c) said table-top base is adapted to be reversibly mounted on said free-standing base.
17. The canted grill of claim 1 which further comprises a lid hinge such that said lid is hingedly attached to said base.
Description
BRIEF DESCRIPTION OF DRAWINGS
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DETAILED DESCRIPTION
[0047] The detailed description describes non-limiting exemplary embodiments. Any individual features may be combined with other features as required by different applications for at least the benefits described herein.
[0048] As used herein, the term about means plus or minus 10% of a given value unless specifically indicated otherwise. As used herein, the term generally means that a described object will appear to have an indicated property to a casual observer although it will not necessarily have the exact property. Thus, if two items are generally parallel, they will appear parallel to a casual observer, but may not necessarily be mathematically parallel.
[0049] As used herein, relative position terms such as distal, proximal, top, bottom, right and left are defined by their initial use for a particular illustration of an object. Once defined by initial use, the relative terms continue to refer to the same portion of an object even if the object is illustrated with another orientation, or unless indicated otherwise. As used herein left, right, front and back are also disclosures of the mirror images of the objects described. Thus, the statement the cooking grate is at an acute angle with respect to the left side also describes a mirror image of the grill where the cooking grate is at an acute angle with respect to the right side. Left and right are generally used from an object's perspective unless specifically indicated otherwise.
[0050]
[0051] The width 302, height 304 and depth 306 of the cooking chamber are selected according to the needs of a particular application. The width separates the right face 222 from the left face 224. The height separates the top face 216 from the bottom face 218. The depth separates the front face 212 from the back face 214. A depth about equal to the height is suitable. A width about equal to 1.5 the height is suitable. A ratio of width to height in the range of 1.2 to 2.3 will provide a significant difference between the depth of the deep side of the base versus the depth of the shallow side of the base. It will also give an adequate width to the shallow side to have a significant area of the cooking grate that is not directly heated by the charcoal for roasting while as the same time have a significant area of the cooking grate exposed to direct heat from the charcoal for searing.
[0052]
[0053] A right-side tray 422 and left-side tray 424 are mounted on telescoping runners 426 that extend out of the right and left sides of the base. The outer edge of the trays may comprise one or more prongs 432 for hanging cooking utensils. The prongs may have upward bent end tips 401. The telescoping runners are held on the base by one or more clips 428 mounted on the rim 438 of the base. The cooking grate is mounted on the top of the clips. Thus, the trays can be slid under the cooking grate and into the cooking chamber for storage when the runners are collapsed.
[0054] One or more notches 436 may be provided in the lip of the lid so that the lid can be closed over the runners when said runners are extended and said left or right-side tray is outside of said cooking chamber.
[0055]
[0056]
[0057] The charcoal grate is elevated off of the base with one or more triangular supports 612. The lower vertices 614 of the supports rest on the inside surface of the base providing a standoff 616 between the charcoal grate and the base. The standoff allows ash from burning charcoal to fall down and accumulate in the bottom of the base.
[0058] A bottom vent 618 may be provided in the base at a level below the horizontal floor of the charcoal grate but significantly above the bottom vertex 254 of the base. This will provide combustion air to the charcoal resting in the firebox 636 without being unduly blocked by ashes that accumulate in the bottom vertex.
[0059] A horizontal pan grate 622 may be on the shallow side of the base 234. The pan grate may extend horizontally from a hinge at about the top of the right ascending side of the charcoal grate. A generally vertical support grate 624 may extend from a hinge 626 at about the bottom of the right ascending side. One or more hooks 628 may be provided at the top of the support grate to engage the distal end of the pan grate. One or more drip pans 632, 634 may rest on the pan grate and below the cooking grate 404. The drip pans may collect drippings from a cut of meat roasting on the right side of the cooking grate. The drip pans may also serve to prevent direct heating of the food placed above them by the burning charcoal in the firebox.
[0060] The volume bounded by the support grate, horizontal floor, and left ascending side is referred to as the firebox 636. The firebox may be charged with charcoal by raising the left wing 408 of the cooking grate and pouring charcoal in. The support grate serves to keep the charcoal on the deep side 232 of the base. Alternatively, another source of heat, such as a gas burner or electric heater, may be provided in the firebox.
[0061]
[0062] The standoff and the lateral offset of the side handle provide a spacing between the handle and the lid and the handle and the collar when the handle is pushed down so that the handle remains relatively cool. The lateral offset also helps keep the handle cool by keeping it away from the hot exhaust gases coming out of the top vent when the top vent is open.
[0063] A front left bottom perspective view of the top vent 244 is presented in
[0064] One or more studs 1812, 1814 and 1816 may be attached to the bottom side of the upper flange of the collar. The height 1818 of the studs may be about equal to the standoff 706 of the collar so that the studs span the gap between the bottom side of the upper flange and the top surface of the top face of the lid. Thus fasteners, such as screws, may proceed up through the top face of the lid and into the studs to hold the collar in place. A vertical hole 1822 may be provided in each stud to accommodate a screw.
[0065]
Lid Hinge
[0066]
[0067] Referring to
[0068] Referring to
[0069] Referring to
[0070] Referring back to
[0071] One or more flange holes 944 can be provided in the flanges for mounting them to the back face 214 (
[0072] The hinge can be made of any suitably strong material, such as steel. The material may be coated for aesthetic purposes or corrosion protection. Any hinge design with clearance for the lip may be used. An advantage of the disclosed design is that it has large side-to-side stiffness so that only a single hinge is required.
[0073] The grill itself can be made of any suitable combination of materials, such as coated steel for the lid and base, stainless steel for the grates, aluminum for the legs and plastic for the wheels.
Two-Wheel Canted Grill
[0074]
[0075] The lid and base of the two-wheel canted grill are similar to the lid and base of the four-wheel canted grill of
[0076] The two-wheel canted grill has a right handle 1132 on the right side of the base just below the lip 1106 of the lid. It also has a left handle 1134 on the left side of the base just below the lip of the lid. A front handle 1136 is provided on the front of the lid just above the lip of the lid. The right and left handles are used for wheeling the canted grill around. The front handle is used to open and close the lid.
[0077] Each leg comprises an upper extension 1155 and a lower extension 1157. The lower extension nests within the upper extension. An array of set holes 1158 is provided in the upper extensions. A snap button 1128 is provided in the lower extensions. A snap button proceeds out through a set hole in an upper extension of a leg to set the length of a leg. A user may adjust a length of a leg by pushing the snap button in and sliding the lower extension within the upper extension until the snap button engages a desired set hole.
[0078] Each upper extension is pivotably attached to the base at a pivot joint 1122. The pivot joint has at least two set points. A first set point corresponds to the leg being in a usage configuration such as that shown in
[0079] The tops of the right legs are attached to a right pivot axle 1154. The right pivot axle proceeds from the front of the base, through the base, to the back of the base. The tops of the left legs are attached to a left pivot axle 1152. The left pivot axle similarly proceeds from the front of the base to the back of the base. Internal bracing may be provided in the base to hold the axles. This will allow relatively thin gauge material to be used for the base.
[0080] The pivot axles may alternatively be lateral studs that proceed from the front and back of the base and do not go through the base.
[0081] The right legs with the wheels are attached to the shallow side 1172 of the base. This will allow for room for the wheels at the bottom of the legs to move to the deep side 1174 of the base when the legs are collapsed and rotated into a storage configuration. This will be discussed in more detail with respect to
[0082] The pivot axles of the right and left legs may be separated by a pivot axle spacing 1162. This should be as large as possible for the dimensions of the base. There may be a downward opening splay 1146 in the legs. The splay may be about the same as the lip width 1148 of the lid. This will help insure stability of the canted grill when it is set up. The splay may be larger than the lip width so that the bottoms of the legs are underneath the right and left-side trays when they are extended.
[0083]
Pivot Joint
[0084]
[0085] The back plate is mounted on the pivot axle at left angles to the pivot axle. The pivot axle is rigidly mounted to the base 1104 so that the back plate does not rotate when the leg is rotated. A pivot axle cap 1303 may be provided at the end of the pivot axle to hold the leg against the back plate. Adequate clearance should be provided to allow the leg to rotate freely about the pivot axle when the pull pin is pulled out.
[0086] To change from a usage configuration to a storage configuration, the pull pin is pulled out. This disengages the pull pin from the usage set hole. The leg is rotated 1326 until the pull pin aligns with the storage set hole. The user then releases the pull pin and it engages the storage set hole. This holds the leg in a storage configuration. Other mechanisms, such as clips, may be used to secure the legs in either the usage configuration or storage configuration.
Storage Configuration
[0087]
[0088] The left legs (e.g. item 1116) and right legs (e.g. item 1112) have been collapsed to their shortest lengths. The legs have also been rotated into their storage positions resting against the front and back faces. The collapsed length 1403 of the right leg is defined as the distance from the right leg pivot axle 1154 to the bottom of the wheel 1141. The collapsed length 1402 of the left leg is defined as the distance from the left leg pivot axle 1152 to the bottom end of the leg 1143. The collapsed lengths of the legs may be less than the width 1148 of the lip. They may also be less than the width 1404 of the cooking chamber. This will minimize the overhang of the ends of the collapsed legs past the left or right faces when the legs are in their storage position.
[0089] The storage position of the left back leg is adjacent to the left 1204 and right 1206 lid hinges. In order to the reach this position, the collapsed left leg length 1402 must be less than the pivot axle spacing 1162 so that the bottom of the left leg will clear the top of the right leg as the left leg is rotated into position. Similar design considerations apply to the front legs.
[0090] The storage position of the right leg 1112 is high enough so that the back wheel 1141 sits at or above the horizontal surface without hitting the left leg 1116. The diameter 1404 of the wheel may be less than the height 1410 of the cooking chamber. The diameter of the wheel may also be less than the elevation 1406 of the left leg pivot axle 1152 above the horizontal surface 1408. The diameter of the wheel should, however, be as large as possible so that the grill can be rolled around easily, especially on rough or soft ground (e.g. sand). A suitable diameter of the wheel is in the range of 0.25 to 0.75 times the height 1410 of the cooking chamber. Similar design considerations apply to the front legs. Thus, the two-wheel canted grill forms a very compact storage configuration.
Separable Lid Hinge
[0091]
[0092] The lid bracket additionally comprises a transverse pivot pin 1524. The pivot pin is rigidly mounted to the lateral leaves of the lid bracket. The pivot pin has a generally round cross section with a pin diameter 1536. The pin is modified from a round cross section by two opposite parallel flat surfaces 1532. These surfaces are referred to herein as flats. The flats are separated by a flat spacing 1538. The flat spacing is less than the pin diameter.
[0093] The distal end of each lateral leaf of the base bracket comprises a generally round pin opening 1542. Each pin opening is described by a pin opening diameter 1546. The distal end of each lateral leaf of the base bracket further comprises a keyhole slot 1544. The keyhole slot provides a channel connecting the pin opening to the outside of the lateral leaves of the base bracket. The keyhole slot may be flared from an inside width 1548 to an outside width 1552. The inside width must be at least as large as the flat spacing.
[0094] In operation, the pivot pin is rotatably located within the pin openings as the hinge rotates. Once the flats of the pivot pin align with the keyhole slot, however, the pin may proceed through the keyhole slot so that the lid bracket and base bracket can be separated. This allows the user to easily separate the lid from the base. This, in turn, allows the lid and base to nest together for shipping, and then subsequently assembled for use without the need for tools.
[0095] The lateral leaves of the lid bracket and base bracket are arched towards each other to form a hinge throat 1562 therebetween. The hinge throat may be described by a height 1566 and lateral extension 1564. The lip 1106 of the lid may also be described by a height 1509 and a lateral extension 1507. The height and lateral extension of the hinge throat should each be greater than the respective height and lateral extension of the lip. The specific shape of the hinge throat may be set by aesthetic considerations as long as the hinge throat does not hit the lip.
[0096] The shape of the vertical flanges of the separable lid hinges should conform to the shape of the lid and base in the intended areas of mounting. The flanges can be flat, curved, or angled as needed. They can be attached to the lid and base by any suitable means, such as screws, rivets, welding or adhesives.
[0097] One or more of the lateral leaves of the lid bracket and base bracket may comprise a lateral tab 1522. The tab may be described by a lateral extension 1530. The lateral extension of the tab is measured from the axis 1520 of the pivot pin to the maximum lateral extension of the tab. If one of the lateral leaves of the lid bracket has a lateral tab, it will act as a stop for the rotation of the hinge as described with reference to
[0098]
[0099] Spacers 1584 and 1585 are provided between the lateral leaves of the base bracket. The spacers are positioned with their closest surface to the hinge axis 1520 at a desired radial distance 1586 from said hinge axis. The spacers are also at a desired angular position relative to the centerline of the keyhole slot. The radial distance is less than the tab lateral extension so that the spacer will contact and stop at least one lateral tab (e.g. item 1588) from proceeding beyond it when the hinge is opened. This will be described in more detail with reference to
[0100]
[0101]
[0102]
Skillet Tray
[0103]
[0104] The left skillet tray 1902 is mounted on a left telescoping runner 1926 and may be retracted underneath the left side of the cooking chamber for cooking or extended out 1928 from under the left side to serve as a shelf. When the skillet tray is retracted for cooking, the left wing of the cooking grate is pivoted out of the way 1924 and rests on the horizontal center portion of the cooking grate.
[0105] The skillet tray is adapted to withstand the heat from the charcoal in the deep side 1932 of the cooking chamber when the grill is lit. The skillet tray may be made of materials suitable for high heat and food contact. Said materials include stainless steel, copper, cast iron and aluminum. A non-stick coating such as a fluoropolymer, ceramic, or gold plating may be provided on the skillet. A vertical lip 1934 may be provided around the periphery of the skillet to keep grease from flowing off the skillet and into the charcoal below. The lip may also provide additional stiffness to resist warping of the skillet due to heating. A drain (not shown) may be provided in the skillet to capture grease.
[0106] The width 1936 of the skillet may be about the same as the width 1938 of the left wing. The skillet may be removable from the telescoping runner so that it can be washed. A left-side tray 424 (
[0107]
Squat Cooking Chamber
[0108]
[0117] wherein: [0118] c) said lower lip of said lid fits on said upper lip of said base to form a cooking chamber 2100 comprising: [0119] i) a front face 2136 and a back face 2238 (
As used herein, a lip may also be referred to as an edge.
[0122] A suitable height of the squat cooking chamber is about 33.8 cm. A suitable width is about 62.4 cm. A suitable depth is about 40.5 mm. A suitable ratio of the width to the height is about 1.85. A suitable range for the ratio of the width to the height is 1.2 to 2.3.
[0123] The top face and the right face may be joined at a top vertex 2106. The top vertex may be rounded. The bottom face and the left face may be similarly joined at a bottom vertex 2108. The radius of curvature 2154 of the top or bottom vertex may be in the range of 2.5 cm to 25 cm. A suitable radius of curvature may be about 5 cm. A suitable radius of curvature for all corners in said squat cooking chamber may be about 5 cm.
[0124] A suitable lid height 2174 from the lower lip of the lid to the top vertex of the lid may be about 25 cm. A suitable lip width 2172 may be about 67.8 cm.
[0125] A right vertical face 2146 and a left vertical face 2148 may be provided on the right and left sides of the squat cooking chamber. The right vertical face may be joined to the right face by a right lid corner 2140. The left vertical face may be joined to the top face by a left lid corner. Corresponding corners may be provided in the base. The left and right vertical faces are provided to elevate the right face and the top face above the lower lip of the lid. This allows room for food items to be cooked on the shallow side of the lid. A suitable clearance 2180 between the top of the right lid corner and the lower lip of the lid is about 6.2 cm. A suitable clearance 2178 between the top of the left lid corner 2150 and the lower lip of the lid is about 7 cm. Other heights may be suitable.
[0126] The squat cooking chamber is similar in design to the cooking chamber 201 (
[0127] The top face may be at a longitudinal angle 2156 with respect to the lower lip of the lid. The longitudinal angle may be in the range of 10 degrees to 45 degrees. A suitable longitudinal angle between the top face and the lip may be about 20 degrees.
[0128] As described above, disclosures herein with respect to right and left are also disclosures of the respective mirror images. Thus, the right side of said lid may be on a viewer's left when said viewer is viewing the front face of said cooking chamber. Alternatively, the right side of the lid may be on a viewer's left when the viewer is viewing the back face of the cooking chamber.
[0129] The squat cooking chamber may further comprise: [0130] a) a top vent 2112 in the top deep side of the lid; and [0131] b) a bottom vent 2118 in the bottom deep side of the base.
[0132] The vents may be any design. A suitable design is any one of the vent designs described herein, such as the vent 244 described, inter alia, in
[0133] A handle 2114 may be provided in the lid to allow a user to open the lid.
[0134]
[0137] The charcoal grate may comprise: [0138] a) a right ascending side 2204; [0139] b) a floor 2208; and [0140] c) a left ascending side 2206.
[0141] The cooking grate be supported by one or more cantilevers 2202. The cantilevers may be made from a piece of sheet metal bent into a U shape. The base of the U shape may be attached to the base of the squat cooking chamber by any joining means, such as a weld or rivet.
[0142] The cooking grate may comprise: [0143] a) an outer frame 2244 that extends around the inner periphery of the base; [0144] b) a horizontal center portion 2232 with transverse bars 2248 that extend across the outer frame; [0145] c) a left side wing 2234; and [0146] d) a right side wing 2238.
[0147] The left and right side wings may comprise left and right wing frames 2254, 2246 that extend around their respective peripheries. Transverse bars 2252, 2256 may extend across said wing frames. The wing frames may be pivotably joined to the horizontal center portion by left and right grate hinges 2236, 2242. Thus, the left and right wing frames may be rotated up to allow, inter alia, for the addition of charcoal to the fire box as needed. The center portion of the cooking grate remains horizontal. In an alternative embodiment, just the left side wing is provided and pivotably attached to the center portion. The center portion would then extend across the rest of the outer frame. In another embodiment, the cooking grate has no wing frames and the center portion extends across the entire outer frame.
[0148] The charcoal grate may be made of bent and joined sheet metal with one or more vent holes 2222 provided therein. The vent holes may be made by any means, such as stamping or laser cutting.
[0149] The right ascending side and left ascending side of the charcoal grate may be about parallel to the bottom face 2134 and left face 2144 of the squat cooking chamber respectively. The right ascending side and left ascending side may be positioned at a standoff 2234 from the bottom and left face by one or more tabs 2216 positioned at the opposite ends of said ascending sides and directed about orthogonally therefrom. A suitable standoff is about 2 cm. Any standoff may be used.
[0150] The charcoal grate may comprise a vertical back side 2212 and vertical front side 2312 (
[0151] A longitudinal rear brace 2218 and front brace 2308 (
[0152]
[0153] The longitudinal rear brace 2218 may be joined to both the back face 2262 of the chamber base and the bottom face 2324 of the chamber base to provide, inter alia, structural support. The longitudinal rear brace may span the base back right corner with a generally straight right rear bevel 2302. This has been found to produce a corner that is about 10 stiffer than if the right rear bevel followed the curvature of the base back right corner. The right rear bevel also provides a support for the charcoal grate so that there is a horizontal standoff 2306 between the back side 2212 of the charcoal grate and the back face 2262 of the base. This helps prevent overheating of the back face of the base. A suitable standoff is about 2.6 cm.
[0154] The longitudinal front brace 2308 may be similarly joined to the front face 2322 of the base and the bottom face 2324 of the base. A right front bevel 2304 may span a base front right corner 2342 to form a stiffer corner and provide a support for the charcoal grill. A similar horizontal standoff 2310 may then be formed between the front face 2322 of the base and the front side 2312 of the charcoal grate.
[0155] The right front bevel and right rear bevel also collectively support the charcoal grate so that there is a vertical standoff 2234 between the charcoal grate and the bottom face of the base.
[0156]
[0157]
[0158]
[0159]
[0160] The particular embodiment of the free-standing grill shown in
CONCLUSION
[0161] While the disclosure has been described with reference to one or more different exemplary embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the disclosure. In addition, many modifications may be made to adapt to a particular situation without departing from the essential scope or teachings thereof. Therefore, it is intended that the disclosure not be limited to the particular embodiment disclosed as the best mode contemplated for carrying out this invention.