Patent Publication Number: US-2017367533-A1

Title: Canted Grill

Description:
FIELD OF INVENTION 
     The inventions described herein are in the field of portable barbecue grills. 
     BACKGROUND 
       FIG. 1A  is a perspective view of a prior art portable charcoal grill  100 . The grill comprises a lid  102  and a base  104 . A lip  106  is provided on the bottom edge of the lid. When the grill is closed, the lip rests on the top edge of the base and forms an air seal. The air seal is not necessarily air tight but may have a small amount of air flow therethrough. The combined lid and base are referred to herein as a cooking chamber. The cooking chamber comprises a front face  112 , a back face  114 , a left face  116 , a right face  118 , a top face  122 , and a bottom face  124 . Each face is generally planar and has a generally rectangular shape with rounded corners. Faces on opposite sides of the cooking chamber are generally parallel. Adjacent faces are generally at right angles to each other. The lip generally bisects the left, right, front and back face. The plane of the lip is at a right angle  126  with respect to the right face. Thus the plane of the lip is generally parallel to the top and bottom face. 
     One or more legs  136  are provided to stand the grill off of the surface it is resting on. One or more vents  132  are provided in the top of the lid to let smoke and other combustion products leave the grill. A handle  134  is provided to lift the lid off of the base. 
       FIG. 1B  is a perspective view of the base  104  with the lid removed. A cooking grate  142  is provided at about the top edge of the base. A charcoal grate  144  is provided below the cooking grate, but above the bottom of the base. When in use, the cooking grate is removed, and charcoal is placed on the charcoal grate and lit. The cooking grate is then replaced on the base and food is cooked. Alternatively, the charcoal may be lit before being placed on the charcoal grate. 
     One of the limitations of the prior art design is that it is difficult to isolate the charcoal to one side of the grill so that one portion of the cooking grate can be used for high temperature searing of meat and another portion can be used for lower temperature roasting. Another limitation of the prior art design is that the area of the cooking grate is limited to the area of the bottom face since they are parallel and since the cooking chamber has a generally rectangular box shape. 
     SUMMARY OF INVENTION 
     The summary of the invention is a guide to understanding the invention. It does not necessarily describe the most generic embodiment. 
       FIG. 2  is a front left perspective view of a four wheel canted grill  200  in a usage configuration. The canted grill provides for a high temperature searing cooking zone and a lower temperature roasting zone in the same cooking grate. It also increases the cooking grate area relative to the area of the bottom face of the cooking chamber. 
     The canted grill comprises a lid  202  and a base  204 . The lid fits on said base to form a cooking chamber  201 . The cooking chamber has a generally rectangular box shape. It comprises a front face  212 , back face  214 , top face  216 , bottom face  218 , left face  222  and right face  224 . Each face has a generally rectangular shape with rounded corners. Opposite faces are generally parallel. Adjacent faces are generally at about right angles (i.e. 90 degrees) to each other. The lid comprises a lip  206  about its bottom edge. The lip rests on the upper edge  203  of the base when the lid is closed. The lid may be attached to the base by one or more lid hinges (item  402 ,  FIG. 4 ). The hinge(s) join the bottom edge of the back of the lid to the top edge of the back of the base. 
     The plane of the lip forms an acute angle  226  with respect to the right face of the cooking chamber. Thus the assembled lid and base have a canted appearance with a deep side  232  and a shallow side  234  when the plane of the lip is in a generally horizontal orientation. A planar cooking grate  404  ( FIG. 4 ) may be provided inside the cooking chamber at about the level of the lip. Thus the cooking grate also forms said acute angle  226  ( FIG. 4 ) with respect to said right face. If the lip is nonplanar, then said base has a deep side and shallow side when the cooking grate is about horizontal. 
     The corners of the front face form a top vertex  252 , a bottom vertex  254 , a right vertex  256  and a left vertex  258 . The lip is shown proceeding from the left vertex to the right vertex. The lip, however, does not have to connect the left and right vertices of the front face. It may alternatively proceed from an intermediate height on the left face to an intermediate height of the right face. 
     The canted grill additionally comprises four legs. There is a front and back right leg  262 ,  263  and a front and back left leg  264 ,  265 . Each leg comprises an upper extension  266 , a lower extension  268  and an optional wheel  272 . The legs are telescoping legs. The lower extension nests within the upper extension. Each extension has a square cross section, but any cross section may be used. An array of set holes  274  is provided along the length of each lower extension. A hinged clip  276  is provided on each upper extension. Each clip comprises a pin  278  that passes through a hole in the upper extension and engages a set hole in the lower extension. Thus the length of each leg can be adjusted by rotating the clip out to withdraw the pin from a set holes in the lower extension, aligning a different set hole with the pin so that the leg has a desired length, and rotating the clip back in to insert the pin into the desired set hole. The clip may be spring loaded to automatically urge the pin into the desired set hole in the lower extension. 
     The wheels are provided on the bottoms of the legs to allow the grill to be rolled around. Large diameter wheels, such as 10 cm or larger, may be provided to allow easy rolling over rough terrain. A handle  242  may be provided in the lid to allow a user to push or pull the grill around. 
     The top of the legs are attached to the base near the left or right vertices using settable pivot joints  282 . A pin  284  may be provided to engage a set point in the pivot joints. The set points illustrated in  FIG. 2  show the legs in a usage configuration where the legs are generally vertical. This is for rolling the grill around and then using the grill. These are termed the “usage set points”. The usage set points orient the plane of the lip and hence the plane of the cooking grate (item  404 ,  FIG. 4 ) in a generally horizontal orientation. The usage set points also orient the legs in a downward splay  286  to provide stability for the legs so that the grill does not easily tip over when moved or used on uneven ground. 
     With the grill in the usage configuration shown in  FIG. 2 , a deep side  232  of the base is provided on the right side of the grill and a shallow side of the base  234  is provided on the left side of the base. Referring to  FIG. 6 , a charcoal grate  602  within the base is configured to contain charcoal in a firebox  636  on the deep side of the base. This provides a searing zone on the cooking grate  404  above it. A pan grate  622  in combination with a support grate  624  excludes charcoal from the shallow side of the base to provide a roasting section of the cooking grate  404  above the pan grate. 
     Referring back to  FIG. 2 , a top vent  244  is provided near the top vertex of the lid to allow smoke and other combustion products to leave the grill. A bottom vent  248  is provided near the bottom vertex of the base to provide fresh air to the burning charcoal therein. 
    
    
     
       BRIEF DESCRIPTION OF DRAWINGS 
         FIG. 1A  is a perspective view of a prior art charcoal grill. 
         FIG. 1B  is a perspective view of the prior art charcoal grill of  FIG. 1  with the lid removed. 
         FIG. 2  is a front left perspective view of a canted grill with the lid closed. 
         FIG. 3  is a front left perspective view of a canted grill with the legs folded against the front face and back face for storage. 
         FIG. 4  is a front top left perspective view of a canted grill with the lid open. 
         FIG. 5  is a front top left perspective view of a canted grill with the left wing of a cooking grate lifted up. 
         FIG. 6  is a front perspective view of a canted grill with the front face and back face of the base rendered transparent so that the charcoal grate inside the base is visible. 
         FIG. 7  is a front right top perspective view of the lid of a canted grill showing the top vent open. 
         FIG. 8  is a front right top perspective view of an exploded view of components of the canted grill of  FIG. 2 . 
         FIG. 9A  is a front left perspective view of a lid hinge. 
         FIG. 9B  is a right rear perspective view of a lid hinge. 
         FIG. 10  is an exploded side perspective view of the lid bracket and base bracket of the hinge of  FIG. 4 . 
         FIG. 11  is a front top left perspective view of a two wheel canted grill design. 
         FIG. 12  is a rear top right perspective view of the canted grill of  FIG. 11 . 
         FIG. 13  is a close up left perspective view of a pivot joint of the canted grill of  FIG. 11 . 
         FIG. 14  is a rear view of the canted grill of  FIG. 11  folded into a storage configuration. 
         FIG. 15A  is a side view of a separable lid hinge. 
         FIG. 15B  is a rear view of the separable lid hinge of  FIG. 15A . 
         FIG. 16A  is a rear perspective exploded view of the separable lid hinge of  FIG. 15A . 
         FIG. 16B  is a rear perspective exploded view of the separable lid hinge of  FIG. 15A  with an added bumper. 
         FIG. 17  is a side view cross section of the separable lid hinge of  FIG. 15A  with the hinge open. 
         FIG. 18  is a bottom perspective view of the top vent of  FIG. 7 . 
         FIG. 19  is a top front right perspective view of a canted grill with a skillet tray. 
         FIG. 20  is a top front right perspective view of the skillet tray of  FIG. 19 . 
     
    
    
     DETAILED DESCRIPTION 
     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. 
     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. 
     As used herein, relative position terms such as “distal”, “proximal”, “top”, “bottom”, “left” and “right” 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 “right”, “left”, “front” and “back” contemplate the mirror images of the objects described. Thus the statement “the cooking grate is at an acute angle with respect to the right side” also describes a mirror image of the grill where the cooking grate is at an acute angle with respect to the left side. “Right” and “left” may also be used relative to a user&#39;s perspective as opposed to from an object&#39;s perspective. 
       FIG. 3  is a front left perspective view of the canted grill  200  folded into a storage configuration. The lid  202  is closed on the base  204  to form the cooking chamber. The legs have been collapsed and rotated about their pivot joints to rest against the front  212  or back  214  faces of the cooking chamber. This allows the bottom face  218  of the cooking chamber to rest in proximity to a horizontal surface  301 . As used herein, “in proximity” means that the standoff  303  of the bottom face from the horizontal surface is less than or equal to 20% of the height  304  of the cooking chamber. The standoff may be due to wheels, lips or other protrusions of the canted grill that suspend the bottom face above the horizontal surface. Storage set points in the pivot joints may be provided to hold the legs in these storage positions. The collapsed length  312  of the legs is less than the width  302  of the cooking chamber. This allows the right legs (e.g. right front leg  262 ) to rest against the front and rear faces with little or no overhang. The left legs (e.g. left front leg  264 ), however, do have some overhang  314  since their pivot joints have to be significantly offset  305  from the left face  222 . This is due to the shallow angle that the lip  206  makes with respect to the bottom face when the lip intersects the left vertex  258 . 
     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 left face  222  from the right 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. 
       FIG. 4  is a top front left perspective view of the canted grill  200  in an open configuration. The back of the lid  202  is attached to the back of the base  204  with a lid hinge  402 . The hinge has a stop at an opening angle of 90 degrees or more so that the lid will remain upright when open. A cooking grate  404  is mounted at about the upper edge of the base. The cooking grill may comprise a left side wing  406 , horizontal center portion  412  and right side wing  408 . The left and right side wings are attached to the center portion with a left and right grate hinge  414 ,  416  respectively. This allows the wings to be opened up while the center portion remains horizontal. A drip pan  434  is visible through the cooking grate. 
     A left side tray  422  and right side tray  424  are mounted on telescoping runners  426  that extend out of the left and right 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. 
     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 right or left side tray is outside of said cooking chamber. 
       FIG. 5  is a top front left perspective view of the canted grill  200  in an open configuration with the left wing  406  of the cooking grate opened up about the left grate hinge  414  so that a user can add or remove the drip pan  434 . The right wing can be similarly opened to allow the user to add charcoal to a firebox on the right side. The firebox will be described in more detail with respect to  FIG. 6 . 
       FIG. 6  is a front perspective view of the canted grill  200  in an open configuration and with the front face and rear face of the base  204  rendered transparent. This allows the charcoal grate  602  to be visible therein. The charcoal grate within the base is shaped to form a firebox  636  to hold charcoal on the deep side  232  of the base. The charcoal grate may comprise a horizontal floor  604 , a right ascending side  606  and a left ascending side  608 . The illustrated ascending sides are parallel to their respective faces of the base. They may alternatively be at a different angle. 
     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. 
     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. 
     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 left ascending side of the charcoal grate. A generally vertical support grate  624  may extend from a hinge  626  at about the bottom of the left 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 left 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. 
     The volume bounded by the support grate, horizontal floor, and right ascending side is referred to as the firebox  636 . The firebox may be charged with charcoal by raising the right 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. 
       FIG. 7  is a top front right perspective view of the lid  202  of the canted grill showing the details of the top vent  244  mounted on the top face  216  near the top vertex  252 . The bottom vent has a similar design. The top vent comprises a flap  702  and collar  704 . The collar may comprise an upper flange  718  and a skirt  722 . The collar is attached to the lid and provides a standoff  706  for the flap. The flap is attached to the collar with a hinge  716 . A side handle  712  extends laterally from the flap by a lateral offset  714  and then bends forward. The flap is attached to the collar by the hinge such that the flap will form a seal with the collar when the side handle is pushed down. The side handle will then be below the upper flange  718  of the collar. 
     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. 
     A bottom perspective view of the top vent  244  is presented in  FIG. 18 . The side handle  712 , collar  704  and bottom of the flap  702  can be seen. The collar comprises the upper flange  718 , the skirt  722 , and a lower flange  1804 . The upper flange provides a platform for the flap to seal against when closed. The lower flange provides room for the hinge  716 . The lower flange of the collar rests directly on the top face of the lid. It may be joined thereto by a screw or other fastener. A mounting hole  1806  may be provided in the lower flange. 
     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. 
       FIG. 8  is a top front right perspective exploded view of the canted grill  200  in the usage configuration of  FIG. 2  showing the individual components as described herein. Reference may be made to the description and figures above to identify the individual components. 
     Lid Hinge 
       FIG. 9A  is a front left perspective view of the lid hinge  402  of  FIG. 4 .  FIG. 9B  is a rear right perspective view of the lid hinge  402 .  FIG. 10  is an exploded side perspective view of the lid bracket  902  and base bracket  906  of the lid hinge  402 . 
     Referring to  FIG. 9A , the lid hinge  402  comprises a lid bracket  902 , a pivot pin  904 , a base bracket  906 , and a tab pin  908 . Each bracket comprises one or more lateral leaves  912 ,  913  extending at right angles from a flange  914 ,  915 . Each leaf comprises a pivot hole  922 ,  923  ( FIG. 10 ) and a tab  924 ,  928  ( FIG. 10 ) at its distal end. When the hinge is assembled, the pivot holes are aligned and the pivot pin passes therethrough. The pivot pin may be a rivet with rounded ends. 
     Referring to  FIG. 9B , one or more spacers  916  may be provided between the lateral leaves  912  of the base to set the spacing between said lateral leaves. The lid tabs  928  are dimensioned to contact the spacers when the lid of the grill is opened so that said spacers will serve as a stop to arrest the rotary motion  942  of the lid. Thus the lid will have a stable open configuration as shown in  FIG. 4 . 
     Referring to  FIG. 10 , the tabs are further dimensioned so that the tab holes  926  in the base tabs and the tab holes  927  in the lid tabs will align when the lid is rotated closed  1002 . The tab pin can then be inserted through the tab holes to keep the lid from opening after it has been closed. The tab pin may be attached to a flexible leash  910  ( FIG. 9A ) which in turn is attached to a portion of the grill. This will keep the tab pin from getting lost when it is removed from the tab holes to open the grill. 
     Referring back to  FIG. 9A , the inside edge  932  of each leaf extends backward and inward to create a space for the lip  206  ( FIG. 2 ) of the grill. The height  934  and depth  936  of the inside edge are selected so that the axis of the pivot pin will be in about the plane of the lip. The actual curvature or other shape of the inside edge can be selected for aesthetic purposes provided there is sufficient clearance for the lip of the lid. 
     One or more flange holes  944  can be provided in the flanges for mounting them to the back face  214  ( FIG. 2 ) of the lid and base. 
     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. 
     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 
       FIG. 11  is a top front left perspective view of an alternative two wheel design  1100  of a canted grill. The canted grill is in a usage configuration. The two wheel canted grill comprises a lid  1102 , base  1104 , rear left leg  1112 , front left leg  1114 , rear right leg  1116  and front right leg  1118 . The lid and base form a cooking chamber  1101 . The left legs each have a wheel  1141 ,  1142  on their bottom ends  1160 ,  1164 . The right legs have straight bottom ends  1143 ,  1144 . End caps  1145 ,  1147  may be provided at the straight bottom ends to reduce the penetration of the right legs into soft ground. 
     The lid and base of the two wheel canted grill are similar to the lid and base of the four wheel canted grill of  FIG. 2 . The two wheel canted grill also has a left side tray  1124  and right side tray  1126  similar to the four wheel design. The internal structure, such as the charcoal grate and cooking grates are also similar. 
     The two wheel canted grill has a left handle  1132  on the left side of the base just below the lip  1106  of the lid. It also has a right handle  1134  on the right 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 left and right handles are used for wheeling the canted grill around. The front handle is used to open and close the lid. 
     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. 
     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  FIG. 11 . A second set point corresponds to the leg being in a storage configuration. The storage configuration will be described in more detail with respect to  FIG. 14 . Additional set points may be provided as needed. For example, set points may be provided to hold the front legs in an extended but swept back orientation for easier wheeling of the canted grill. 
     The tops of the left legs are attached to a left pivot axle  1154 . The left pivot axle proceeds from the front of the base, through the base, to the back of the base. The tops of the right legs are attached to a right pivot axle  1152 . The right 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. 
     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. 
     The left 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  FIG. 14 . 
     The pivot axles of the left and right 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 left and right side trays when they are extended. 
       FIG. 12  shows a rear top right perspective view of the two wheel canted grill  1100 . A left lid hinge  1206  and right lid hinge  1204  may be provided to pivotably attach the lid  1102  to the base  1104 . A top vent  1202  is visible. 
     Pivot Joint 
       FIG. 13  is a front left perspective view of the pivot joint  1122  of  FIG. 11 . The pivot joint is for the front left leg  1114 . The pivot joints for the other legs are similarly designed. The pivot joint comprises a pivot axle  1154 , a back plate  1304  and a spring loaded pull pin  1306 . The back plate comprises a storage set hole  1322  and a usage set hole  1324 . The usage set hole is behind the top of the front left leg in the illustrated usage configuration. The pull pin proceeds through the leg and is engaging the usage set hole so that the leg is locked in the usage configuration. 
     The back plate is mounted on the pivot axle at right 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. 
     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 
       FIG. 14  is a rear view of the two wheel canted grill  1100  in a storage configuration. The lid  1102  fits on the base  1104  to form the cooking chamber  1101 . The left face  1426 , right face  1424 , top face  1416 , bottom face  1414  and back face  1418  are all visible. The front face  1422  is behind the back face. The bottom face is resting in proximity to a horizontal surface  1408 . The left handle  1132  tips the base up slightly. The ratio of the standoff  1412  of the bottom face to the height  1410  of the cooking chamber is about 0.16. 
     The right legs (e.g. item  1116 ) and left 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 left leg is defined as the distance from the left leg pivot axle  1154  to the bottom of the wheel  1143 . The collapsed length  1402  of the right leg is defined as the distance from the right 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 right or left faces when the legs are in their storage position. 
     The storage position of the right rear leg is adjacent to the right  1204  and left  1206  lid hinges. In order to the reach this position, the collapsed right leg length  1402  must be less than the pivot axle spacing  1162  so that the bottom of the right leg will clear the top of the left leg as the right leg is rotated into position. Similar design considerations apply to the front legs. 
     The storage position of the left leg  1112  is high enough so that the rear wheel  1141  sits at or above the horizontal surface without hitting the right 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 right 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 
       FIG. 15A  shows a right side view of a separable lid hinge  1500 . This is the same hinge design shown for the left and right lid hinges in  FIG. 14 . All lid hinge designs disclosed herein may be used for any grill with a lid with a lip. The separable lid hinge comprises a lid bracket  1502  hingedly joined to a base bracket  1504 . The lid bracket comprises a vertical flange  1512  and one or more lateral leaves  1515 . The base bracket similarly comprises a vertical flange  1514  and one or more lateral leaves  1517 . The vertical flange of the lid bracket is shown mounted on the back face  1503  of the lid  1102  of the two wheel canted grill. The vertical flange of the base bracket is shown mounted on the back face  1505  of the base  1104  of the two wheel canted grill. 
     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. 
     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. 
     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. 
     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. 
     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. 
     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  FIG. 17 . 
       FIG. 15B  is a back view of the separable lid hinge  1500 . The vertical flanges  1512  and  1514  can be seen. Each vertical flange may comprise one or more mounting holes  1582 . These will facilitate mounting on the lid and base using screws or rivets. The lid bracket  1502  comprises two lateral leaves  1515 ,  1516 . The base bracket  1504  comprises three lateral leaves  1517 ,  1518  and  1519 . The lateral leaves of the lid bracket interleave with the lateral leaves of the base bracket. The pivot pin  1524  extends through the lateral leaves of the base bracket. The lid bracket could alternatively comprise one lateral leaf and the base bracket could alternatively comprise two lateral leaves or even one lateral leaf. The separable lid hinge could also be used upside down with the vertical flange of the lid bracket attached to the base and the vertical flange of the base bracket attached to the lid. 
     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  FIG. 17 . 
       FIG. 16A  shows an exploded rear perspective view of the separable lid hinge  1500 . The lid bracket  1502 , base bracket  1504 , pivot pit  1524  and spacer  1584  can be seen. A recess  1602  is provided in the outer surface  1604  of at least one lateral leaf of the lid bracket. The recess is provided around the pivot pin. The recess may be filled with a bumper  1606  ( FIG. 16B ). The bumper may be an elastomer, such as silicon rubber. The bumper should extend slightly outside of the vertical leaf so that it has to be compressed when the hinge is assembled. This provides a frictional surface so that the opening and closing of the grill is smoother and the grill won&#39;t slam shut if it is let go before it is fully open. The bumper also reduces any rattle in the canted grill when it is in a storage configuration and transported. 
       FIG. 16B  shows an exploded rear perspective view of the separable lid hinge  1500  with the bumper  1606  shown as described above. Bumpers may be provided on both lateral leaves of the lid bracket. 
       FIG. 17  is a side view cross section of the separable lid hinge  1500  in an open configuration. The lid bracket  1502  and base bracket  1504  can be seen. The lateral tab  1588  of a lateral leaf of the lid bracket has contacted the spacer  1584  at a contact point  1708 . The contact orientation is determined by the tab lateral extension  1530 , spacer radial depth  1586 , angular position  1704  of the spacer and the specific shape of the lateral tab and spacer. The angular position of the spacer may be defined as the angle between the centerline  1706  of the keyhole slot and a contact line  1712  connecting the hinge axis  1520  to the contact point  1708  between the lateral tab and spacer. The angular position may also be defined with respect to any convenient geometry of the lid bracket and base bracket. In this embodiment, the contact orientation is for the open configuration of the lid. It is also the orientation that will allow the flats  1532  of the pivot pit  1524  to align with the keyhole slot  1544  so that the lid can be removed  1702  from the base. 
     Skillet Tray 
       FIG. 19  is a top front right perspective view of canted grill  1900  where the right side tray is a skillet tray  1902 . The canted grill  1900  has a cooking grate  1910 . The cooking grate comprises a left wing  1912 , horizontal center portion  1914  and right wing  1916 . The left wing is joined to the center portion by a left grate hinge  1918 . The right wing is joined to the center portion with a right grate hinge  1922 . The left and right grate hinges are adapted to allow the left and right wings to pivot 180 degrees (e. g. item  1924 ) so that one or the other can rest on the horizontal center portion. The left side tray  1922  is the same as the design as the left side tray  422  of  FIG. 4 . It is mounted on a left telescoping runner  1930  so that it can be extended out from under the left wing of the cooking grate and serve as a shelf when the grill is in use. It can then be retracted back underneath the left wing of the cooking grate for storage. 
     The right skillet tray  1902  is mounted on a right telescoping runner  1926  and may be retracted underneath the right side of the cooking chamber for cooking or extended out  1928  from under the right side to serve as a shelf. When the skillet tray is retracted for cooking, the right wing of the cooking grate is pivoted out of the way  1924  and rests on the horizontal center portion of the cooking grate. 
     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. 
     The width  1936  of the skillet may be about the same as the width  1938  of the right wing. The skillet may be removable from the telescoping runner so that it can be washed. A right side tray  424  ( FIG. 4 ) may be provided to be interchanged with the skillet. A left skillet tray of similar design to the right skillet tray may be provided for lower temperature skillet cooking on the shallow side  1936  of the canted grill. 
       FIG. 20  is a top front right perspective view of the skillet tray  1902 . The vertical lip  1934  can be seen around the periphery. Additional features may be provided in the skillet for specialized cooking, such as undulations for searing. 
     CONCLUSION 
     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.