Patent Publication Number: US-10767872-B2

Title: Built-in oven with height adjuster

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     This application is a continuation of U.S. patent application Ser. No. 13/090,544 (now U.S. Pat. No. 9,857,083), entitled BUILT-IN OVEN WITH HEIGHT ADJUSTER, filed on Apr. 20, 2011, which is a application of U.S. patent application Ser. No. 13/090,491, now U.S. Pat. No. 8,813,328, entitled METHOD &amp; APPARATUS FOR INSTALLING A BUILT-IN OVEN INTO A CABINET CUT-OUT, which was also filed on Apr. 20, 2011. 
    
    
     TECHNICAL FIELD 
     The present disclosure relates generally to a domestic oven and more particularly to domestic built-in ovens. 
     BACKGROUND 
     A domestic built-in oven is used to cook meals and other foodstuffs and may include a single cooking chamber or multiple cooking chambers. Built-in ovens may be installed in a cut-out opening formed in a cabinet or wall of a home kitchen. The opening formed in the cabinet or wall is typically custom-sized to match the dimensions of the built-in oven purchased at the time the kitchen was built or last remodeled. 
     SUMMARY 
     According to one aspect of the disclosure, a method of installing a replacement built-in oven into a cut-out defined in a kitchen is disclosed. The method includes identifying a used built-in oven positioned in the cut-out of the kitchen, positioning a height adjuster of the replacement built-in oven into one of a number of predetermined positions based on the identity of the used built-in oven, and installing the replacement built-in oven in the cut-out of the kitchen. In some embodiments, the method may also include selecting a pre-sized bottom trim piece based on the position of the height adjuster, and attaching the pre-sized bottom trim piece at the front of the cut-out after the replacement built-in oven is installed in the cut-out. 
     In some embodiments, positioning the height adjuster may include selecting the position of the height adjuster from a look-up table comprising a plurality of predetermined positions, each of which corresponds to the identity of the used built-in oven. Additionally, in some embodiments, positioning the height adjuster may include adjusting each of a plurality of mounting legs extending from a lower frame of the replacement built-in oven. In some embodiments, adjusting each of the plurality of mounting legs may include increasing a vertical height of each of the mounting legs from a first predetermined vertical height to a second predetermined vertical height. 
     In some embodiments, adjusting each of the plurality of mounting legs may include moving each of the mounting legs from a first orientation relative to the lower frame to a second orientation relative to the lower frame. In some embodiments, moving each of the mounting legs may include decoupling each of the mounting legs from the lower frame of the replacement built-in oven and reattaching each of the mounting legs in the second orientation relative to the lower frame. Additionally, in some embodiments, positioning the height adjuster may include attaching a plurality of mounting legs to a lower frame of the replacement built-in oven. 
     In some embodiments, positioning the height adjuster ay include rotating a link coupled to the height adjuster to move the height adjuster from a first predetermined position to a second predetermined position relative to a lower frame of the replacement built-in oven. 
     According to another aspect, the method includes identifying a used built-in oven associated with the cut-out, determining a fit adjustment based on the identity of the used built-in oven associated with the cut-out, positioning a height adjuster of the replacement built-in oven based on the fit adjustment, and installing the replacement built-in oven into the cut-out of the cabinet. In some embodiments, determining the fit adjustment may include selecting from a look-up table the fit adjustment corresponding to the identity of the used built-in oven associated with the cut-out. 
     In some embodiments, positioning the height adjuster may include attaching at least one mounting leg to a lower frame of the replacement built-in oven. In some embodiments, positioning the height adjuster may include changing an orientation of a mounting leg relative to a lower frame of the replacement built-in oven. Additionally, in some embodiments, positioning the height adjuster may include operating an adjustment rod of the height adjuster to move the height adjuster from a first predetermined position to a second predetermined position relative to a lower frame of the replacement built-in oven. 
     In some embodiments, the method may selecting a pre-sized trim piece based on the determined fit adjustment, and attaching the pre-sized trim piece to the front of the cabinet when the replacement built-in oven is installed in the cabinet. 
     According to another aspect, a domestic appliance is disclosed. The domestic appliance includes a built-in oven to be positioned in a cut-out defined in a front of a cabinet. The built-in oven includes a housing having a cooking chamber defined therein and a lower frame positioned below the cooking chamber, and a height adjuster coupled the lower frame. The height adjuster has a number of predetermined positions. The built-in oven has a first vertical height when the height adjuster is positioned in a first predetermined position, and a second vertical height when the height adjuster is positioned in a second predetermined position. The second vertical height is greater than the first vertical height. 
     In some embodiments, the height adjuster may include a mounting leg having a first length defined along a first side and a second length defined along a second side. In some embodiments, the housing and the first length of the mounting leg may define the first vertical height of the built-in oven when the height adjuster is positioned in the first predetermined position. Additionally, the housing and the second length of the mounting leg may define the second vertical height of the built-in oven when the height adjuster is positioned in the second predetermined position. 
     In some embodiments, the second side of the mounting leg may be in contact with the lower frame when the height adjuster is positioned in the first predetermined position, and the first side of the mounting leg may be in contact with the lower frame when the height adjuster is positioned in the second predetermined position. In some embodiments, the mounting leg may be removably coupled to the lower frame of the housing. Additionally, in some embodiments, the adjuster may include four mounting legs. Each of the mounting legs may be secured to a corner of the lower frame. 
     In some embodiments, the height adjuster may include a first wedge positioned below the lower frame. The first wedge may have a first inclined surface. The adjuster may also include a second wedge secured to the lower frame. The second wedge may have a second inclined surface contacting the first inclined surface. The second wedge may move upwardly along the first inclined surface as the height adjuster is moved from the first predetermined position to the second predetermined position. 
     In some embodiments, the height adjuster may further include a base secured to the first wedge, and a threaded shaft rotatively coupled to the base and the second wedge such that rotation of the threaded shaft causes the second wedge to move upwardly along the first inclined surface. Additionally, in some embodiments, the height adjuster may further include a third wedge coupled to the base behind the first wedge. The third wedge may have a third inclined surface. The adjuster may also include a fourth wedge secured to the lower frame. The fourth wedge may have a fourth inclined surface contacting the third inclined surface. The fourth wedge may move upwardly along the third inclined surface as the height adjuster is moved from the first predetermined position to the second predetermined position. 
     In some embodiments, the height adjuster may include a base positioned below the lower frame, a link rotatably coupled to the base at a first end and rotatably coupled to the lower frame at a second end opposite the first end, and a stop extending from the link. The stop may contact the base when the height adjuster is positioned in the second predetermined position. In some embodiments, the domestic appliance may further include a locking device configured to prevent the link from rotating relative to the lower frame. 
     In some embodiments, the domestic appliance may further include a plurality of pre-sized bottom trim pieces configured to be secured to the housing. In some embodiments, a first pre-sized bottom trim piece of the plurality of pre-sized bottom trim pieces may be secured to the housing when the height adjuster is placed in the first predetermined position, the first pre-sized bottom trim piece. A second pre-sized bottom trim piece of the plurality of pre-sized bottom trim pieces may be secured to the housing when the height adjuster is placed in the second predetermined position. The second pre-sized bottom trim piece may have a greater vertical height than the first pre-sized bottom trim piece. 
     According to another aspect, the domestic appliance includes a built-in oven to be positioned in a cut-out defined a kitchen. The built-in oven includes a housing having a first cooking chamber defined therein and a lower frame positioned below the first cooking chamber. The built-in oven also includes a mounting leg removably coupled to the lower frame. The mounting leg has a first length defined along a first side and a second length defined along a second side. The second length is greater than the first length. The housing of the built-in oven and the first length of the mounting leg define a first vertical height when the second side of the mounting leg is in contact with the lower frame, and the housing and the second length of the mounting leg define a second vertical height when the first side of the mounting leg is in contact with the lower frame. 
     In some embodiments, the domestic appliance may further include a plurality of pre-sized bottom trim pieces configured to be positioned at the front of the cut-out to close the gap between the built-in oven and the cut-out. In some embodiments, the built-in oven may include a second cooking chamber positioned between the first cooking chamber and the lower frame. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The detailed description particularly refers to the following figures, in which: 
         FIG. 1  is a perspective view a used built-in oven positioned in a kitchen cabinet; 
         FIG. 2  is a perspective view of the opening formed in the kitchen cabinet of  FIG. 1 , a replacement built-in oven to be installed in the opening and one embodiment of a height adjuster; 
         FIG. 3  is a method of installing the replacement oven of  FIG. 2 ; 
         FIG. 4  is a perspective view of one mounting leg of the height adjuster shown in  FIG. 2 ; 
         FIG. 5A  is a side elevation view showing the mounting leg of  FIG. 4  attached to a replacement built-in oven in a predetermined position; 
         FIG. 5B  is a side elevation view showing the mounting leg of  FIGS. 4 and 5A  attached to the replacement built-in oven in another predetermined position; 
         FIG. 6  is a perspective view of another embodiment of the height adjuster in one predetermined position; 
         FIG. 7  is a diagrammatic perspective view of the height adjuster of  FIG. 6  in another predetermined position; 
         FIG. 8  is a side elevation view of another embodiment of the height adjuster in one predetermined position; 
         FIG. 9  is a diagrammatic perspective view of the height adjuster of  FIG. 8  in another predetermined position; and 
         FIG. 10  a diagrammatic perspective view of the height adjuster of  FIGS. 8 and 9  in the predetermined position shown in  FIG. 8 . 
     
    
    
     DETAILED DESCRIPTION OF THE DRAWINGS 
     While the concepts of the present disclosure are susceptible to various modifications and alternative forms, specific exemplary embodiments thereof have been shown by way of example in the drawings and will herein be described in detail. It should be understood, however, that there is no intent to limit the concepts of the present disclosure to the particular forms disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims. 
     Referring to  FIG. 1 , a domestic oven appliance is shown as a built-in oven  10 . The term “built-in oven” is defined herein as a domestic cooking appliance including a cooking chamber configured to cook foodstuffs, which is configured to be installed in a cut-out or cavity defined in a kitchen. As such, a built-in oven is distinguishable from, and in contrast to, a domestic range that is equipped with surface heating elements or burners and at least one cooking chamber. A built-in oven is also distinguishable from a domestic appliance that is configured to be moveable. 
     The built-in oven  10  is shown positioned in a cut-out  12  formed in a cabinet  14  of a home kitchen  16 . It will be appreciated that in other embodiments the cut-out  12  may be formed in other areas of the kitchen  16 , such as, for example, a kitchen wall. As shown in  FIG. 2 , the cut-out  12  defines an oven compartment  18  and includes an opening  20  formed in the front surface of the cabinet  14 . When installed in the cut-out  12 , the front  22  of the built-oven  10  is accessible by the user. 
     The built-in oven  10  includes a housing  30  extending from a lower frame  34  to an upper panel  36 . The housing  30  has a cooking chamber  38  defined therein into which pans, sheets, or other cookware carrying food may be placed to be heated. A number of racks (not shown) are positioned in the cooking chamber  38 , and the racks and the cooking chamber  38  are accessible from the front  22 . A door assembly  40  is hinged to the front of the housing  32  and permits access to the cooking chamber  38 . An electric baking element  42  is positioned below the cooking chamber  38  and is configured to generate heat for baking or otherwise cooking food items in the cooking chamber  38 . It will be appreciated that in other embodiments the baking element may be a gas-fired baking element that uses natural gas as a combustion source to generate heat. While the built-in oven  10  shown in  FIG. 1  has only a single cooking chamber  38 , it will be appreciated that in other embodiments the built-in oven may be a dual or combination built-in oven having more than one cooking chamber. 
     A user may control the operation of the baking element  42  using an interface  44  located on the upper panel  36 . The interface  44  includes a display  46  and a set of push buttons  48  that are connected to an automated control system (not shown) operable to control the operation of the baking element  42 . For example, the user may use the interface  44  to set a desired temperature for the cooking chamber  38 . The automated control system responds by supplying electrical power to the baking element  42  and adjusting amount of power supplied as necessary to heat the cooking chamber  38  to the desired temperature. 
     Each built-in oven  10  may have a different overall footprint and may vary from other built-in ovens in, for example, height or depth. Typically, the cut-out  12  is sized based on the identity (i.e., the brand or model) of the first or original built-in oven to be installed in the kitchen  16 . For example, when a home owner purchases a built-in oven  10  produced by one manufacturer, the kitchen designer or cabinet maker will typically size the cut-out  12  to fit the footprint of that built-in oven. Among other things, a vertical dimension  54  of the cut-out  12  is custom-sized to the first built-in oven  10 . 
     As shown in  FIGS. 1-2 , the built-in oven  10  has a height  50 . When the built-in oven  10  is installed in the cut-out  12 , the lower frame  34  contacts the bottom surface  52  of the cut-out  12 . Because the vertical dimension  54  of the cut-out  12  is sized to fit the height  50  of the built-in oven  10 , the upper panel  36  of the built-in oven  10  is in contact with the upper section  56  of the cut-out  12  when the built-in oven  10  is installed in the cut-out  12 . Additionally, the opening  20  of the cut-out  12  is filled by the built-in oven  10 . 
     As shown in  FIG. 2 , the original, used built-in oven  10  may be removed from the cut-out  12  and replaced by a replacement built-in oven  60 . The term “replacement built-in oven” is defined herein as a built-in oven that is a different brand or model of built-in oven from the used built-in oven. For example, if the used built-in oven was produced by Manufacturer A, the replacement built-in oven might have been produced by Manufacturer B. Similarly, the used built-in oven and the replacement built-in oven might be different models produced by the same manufacturer. In any event, the cut-out  12  does not match the footprint (e.g., height or depth) of the replacement built-in oven because the replacement built-in oven is a different brand or model from the used built-in oven. 
     Like the used built-in oven  10 , the replacement built-in oven  60  includes a housing  62  that extends from a lower frame  68  to an upper panel  70 . The housing  62  has a cooking chamber  72  defined therein into which pans, sheets, or other cookware carrying food may be placed to be heated. A door assembly  74  is hinged to the front of the housing  62  and permits access to the cooking chamber  72 . An electric baking element  76  is positioned below the cooking chamber  72 , and a user may control the operation of the baking element  76  using an interface  78  located on the upper panel  70 . 
     In the illustrative embodiment, the replacement built-in oven  60  has a height  64  that is less than the height  50  of the used built-in oven  10 . Because the replacement built-in oven  60  is smaller than the used built-in oven  10 , the vertical dimension  54  of the cut-out  12  is not sized to fit the height  64  of the replacement built-in oven  60 . Among other things, the replacement built-in oven  60  does not fill the opening  20  of the cut-out  12 . 
     As shown in  FIG. 2 , the replacement built-in oven  60  includes an adjustment mechanism or height adjuster  80  configured to be secured to the lower frame  68 . As will be discussed in greater detail below, the adjuster  80  is operable to lift or raise the lower frame  68  of the replacement built-in oven  60  from the bottom surface  52  of the cut-out  12 . In that way, the adjuster  80  is operable to change the position of the replacement built-in oven  60  when the oven is installed in the cut-out  12 . The adjuster  80  includes a number of predetermined lift positions that raise or lift replacement built-in oven  60  by various predefined amounts. The adjuster  80  adds to the height  64  of the housing  62  to increase the overall height of the replacement built-in oven  60  to a height  92 . It will be appreciated that the height  92  of the replacement built-in oven  60  changes depending on the predetermined position of the adjuster  80 . 
     By lifting the replacement built-in oven  60 , a gap is created between the bottom surface  52  of the cut-out  12  and the lower frame  68  of the replacement built-in oven  60 . As shown in  FIG. 2 , the replacement built-in oven  60  includes a pre-sized bottom trim piece  86 , which is one of a number of pre-sized bottom trim pieces. The bottom trim piece  86  is attached at the front of the replacement built-in oven  60  when the oven is installed in the cut-out  12 . The bottom trim piece  86  has an outer surface  88  that has a predetermined height  90  to cover the gap when the replacement built-in oven  60  is installed in the cut-out  12 , as will be discussed in greater detail below. 
     An exemplary process  100  of installing the replacement built-in oven  60  in the cut-out  12  is shown in  FIG. 3 . After purchasing the replacement built-in oven  60 , the used built-in oven  10  is identified in step  102 . The used built-in oven  10  may be identified by its brand-type, model number, manufacturer, or other form of identifying information, such as, for example, whether the used built-in oven  10  is a dual, combination, or single oven of a particular brand. Once the person installing the replacement built-in oven  60  identifies the used built-in oven  10 , the installation process may advance to step  104 . 
     In step  104 , the user determines the necessary fit adjustment for the replacement built-in oven  60 . Because the cut-out  12  is sized based on the identity of the used built-in oven  10 , the fit adjustment required to install the replacement built-in oven  60  in the cut-out  12  corresponds to the identity of the used built-in oven  10 . As such, the required fit adjustment varies depending on the identity of the used built-in oven  10 . For example, because a used built-in oven produced by one manufacturer may be larger than a used built-in oven produced by another manufacturer, the amount of adjustment required to fit the replacement built-in oven  60  in the cut-out  12  may be different for each used built-in oven. 
     As described above, the adjuster  80  has a number of predetermined positions, each of which lifts the replacement built-in oven  60  by a predetermined amount. The predetermined positions of the adjuster  80  are listed or stored as a function of the identities of various used built-in ovens. For example, the replacement built-in oven  60  may be sold with a product manual that lists the predetermined positions of the adjuster  80  in a look-up table, and each predetermined position may correspond to a different used built-in oven. It will be appreciated, however, that the predetermined positions of the adjuster  80 , and, consequently, the identities of the used built-in ovens, may be presented in other formats that permit the user to select the predetermined position corresponding to the identity of the used built-in oven  10 . Once the identity of the used built-in oven  10  is known, the person installing the replacement built-in oven  60  may select from the look-up table the predetermined position corresponding to the identity of the used built-in oven  10 . 
     In step  106 , the user operates the adjuster  80  to place the adjuster  80  in the predetermined position selected in step  104 . As will be described in greater detail below, operating the adjuster  80  may involve repositioning mounting legs on the lower frame  68  of the replacement built-in oven  60 , operating a threaded rod, or taking some other action to place the adjuster  80  in the selected predetermined position. Once the adjuster  80  is placed in the selected predetermined position, the replacement built-in oven  60  is installed in the cut-out  12  in step  108 . 
     During installation step  108 , the adjuster  80  is placed in contact with the bottom surface  52  of the cut-out  12  and the upper panel  70  of the replacement built-in oven  60  is positioned adjacent to, or in contact with, the upper section  56  of the cut-out  12 . When installed in the cut-out  12 , the front of the replacement built-in oven  60  is accessible and a gap is formed between the lower frame  68  of the replacement built-in oven  60  and the bottom surface  52  of the cut-out  12 . 
     In step  110 , a pre-sized bottom trim piece is selected based on the identity of the used built-in oven  10 . The selected bottom trim piece is sized to correspond to the amount the replacement built-in oven  60  is lifted relative to the bottom surface  52  of the cut-out  12 . In that way, each pre-sized bottom trim piece is configured to be positioned at the front of the cut-out  12  to close the gap between the replacement built-in oven  60  and the cut-out  12 . For example, because a used built-in oven produced by one manufacturer may be larger than a used built-in oven produced by another manufacturer, the amount of adjustment required to fit the replacement built-in oven  60  in the cut-out  12  and the size of the gap formed between the lower frame  68  of the replacement built-in oven  60  and the bottom surface  52  of the cut-out  12  may vary. To cover or close gaps of various sizes, the replacement built-in oven  60  may be sold with a plurality of pre-sized bottom trim pieces having different sizes to cover those different sized gaps. 
     Like the predetermined positions of the adjuster  80 , the different pre-sized bottom trim pieces may be listed as a function of the identities of the used built-in ovens. The variety of trim pieces may be presented in the same format as the predetermined positions of the adjuster  80 , such as, for example, in look-up tables, lists, or any other format that relates each pre-sized bottom trim piece to the identity of a particular used built-in oven  10  or a predetermined position of the adjuster  80 . Once the pre-sized bottom trim piece is selected, it may be attached at the front of the replacement built-in oven  60  in the cut-out  12 . 
     As shown in  FIG. 2 , the adjuster  80  includes a plurality of mounting legs  200  configured to be secured to the lower frame  68 . Each mounting leg  200  is attached to a rail  202  of the frame  68  at each corner  204  of the replacement built-in oven  60 . It will be appreciated that in other embodiments the adjuster  80  may include additional or fewer mounting legs  200 . Additionally, in other embodiments, each mounting leg  200  may be attached to the lower frame  68  in locations different from those shown. 
     Referring now to  FIGS. 4 and 5A -B, one of the mounting legs  200  is shown greater detail. The mounting leg  200  has a shell  210  including a pair of sidewalls  212 ,  214  and a lifter block  216  connecting the sidewall  212  to the sidewall  214 . The sidewall  212  includes a pair of through-holes  218 ,  220  extending from an outer surface  222  to an inner surface  224 . The through-holes  218 ,  220  include countersinks  226 ,  228  formed in the outer surface  222 . A fastener  230  (see  FIGS. 5A-B ) is received in one of the through-holes  218 ,  220  when the mounting leg  200  is secured to the lower frame  68 . 
     The sidewall  212  also includes a plurality of rectangular apertures  232  defined in the outer surface  222 . As shown in  FIG. 4 , the apertures  232  do not extend through the sidewall  212  to the inner surface  224 . It will be appreciated that in other embodiments some or all of the apertures  232  may extend from the outer surface  222  to the inner surface  224 . Additionally, in some embodiments, the number of apertures  232  may be increased or reduced or the apertures  232  may be eliminated from the sidewall  212 . 
     The lifter block  216  has a body  234  that includes a long side  236  extending from an end  238  of the shell  210 . The body  234  also includes a short side  240  extending from another end  242  of the shell  210  to intersect with the side  236 . The side  236  has a length  244 , and the side  240  has a length  246  that is shorter than the length  244 . 
     As shown in  FIGS. 5A and 5B , the rail  202  of the lower frame  68  is received between the sidewalls  212 ,  214  when the mounting leg  200  is secured to the replacement built-in oven  60 . Referring now to  FIG. 5A , the mounting leg  200  is shown extending downwardly from the lower frame  68  in one predetermined position. In that predetermined position, the side  236  is in contact with the lower frame  68 , and the fastener  230  extends through the through-hole  218  into the rail  202 . In the illustrative embodiment, the fastener  230  is a screw, but it will be appreciated that in other embodiments the fastener may take also take the form of a pin, key, shaft, or rod configured to secure the mounting leg  200  to the lower frame  68 . 
     As shown in  FIG. 5A , the end  242  of the mounting leg  200  is in contact with the bottom surface  52  of the cut-out  12  when the replacement built-in oven  60  is installed therein. The length  246  of the lifter block  216  adds to the height  64  of the housing  62 , thereby increasing the overall height of the replacement built-in oven  60  to the height  92 . 
     The length  246  of the short side  240  also defines the length  250  of gap  252  formed between the lower frame  68  and the bottom surface  52 . The bottom trim piece  86  is positioned at the front of the cut-out  12  and is attached to the lower frame  68  of the replacement built-in oven  60 . The predetermined height  90  of the bottom trim piece  86  also corresponds to the length  246  of the short side  240  of the lifter block  216 . As shown in  FIG. 5A , the bottom trim piece  86  fills the gap  252 . 
     Referring now to  FIG. 5B , the replacement built-in oven  60  is shown installed in another cut-out  258  larger than the cut-out  12 , requiring the adjuster  80  to be placed in another predetermined position. If the mounting leg  200  is already secured to the lower frame  68  in the predetermined position shown in  FIG. 5A , the user must decouple the mounting leg  200  from the lower frame  68  and rotate the mounting leg  200  to the position shown in  FIG. 5B . 
     In  FIG. 5B , the mounting leg  200  is secured to the replacement built-in oven  60  in the second predetermined position and extends downwardly from the lower frame  68 . In that predetermined position, the side  240  of the lifter block  216  is in contact with the lower frame  68 , and the fastener  230  extends through the through-hole  220  into the rail  202 . The end  238  of the mounting leg  200  is in contact with the bottom surface  260  of the cut-out  258 . The length  244  of the long side  236  of the lifter block  216  adds to the height  64  of the housing  62 , thereby increasing the overall height of the replacement built-in oven  60 . The length  244  also increases the gap  262  formed between the lower frame  68  and the bottom surface  260  to a length  264 . 
     Another pre-sized bottom trim piece  266  is positioned at the front of the cut-out  258  and attached to the lower frame  68  of the replacement built-in oven  60 . The bottom trim piece  266  has an outer surface  268  that has a predetermined height  270  to cover the length  264  of the gap  262 . As shown in  FIG. 5B , the predetermined height  270  of the bottom trim piece  266  corresponds to the length  244  of the long side  236  of the lifter block  216 . The predetermined height  270  of the bottom trim piece  266  is also greater than the predetermined height  90  of the pre-sized bottom trim piece  86 . 
     As shown in  FIGS. 4 and 5A -B, the mounting leg  200  has only two predetermined positions. It will be appreciated that in other embodiments the mounting leg may include additional predetermined positions to increase the number of adjustments that can be made to the replacement built-in oven  60 . Additionally, in some embodiments, the mounting leg  200  may be non-removably secured to the lower frame  68 . It will also be appreciated that in other embodiments the adjuster  80  and the pre-sized bottom trim pieces  86 ,  266  may be sold as accessories separate from the replacement built-in oven  60 . 
     Referring now to  FIGS. 6 and 7 , another embodiment of a height adjuster (hereinafter adjuster  300 ) is shown. The adjuster  300  includes a support frame  302  configured to be secured to the lower frame  68  of the replacement built-in oven  60 . As shown in  FIG. 6 , the support frame  302  includes a channel  304  sized to receive the rail  202  of the lower frame  68 . Another channel (not shown) receives the rail formed on the opposite side of the lower frame  68 . It will be appreciated that in other embodiments the support frame  302  may replace the lower frame  68  to non-removably secure the adjuster  300  to the housing  66  of the replacement built-in oven  60 . 
     As best seen in  FIG. 7 , the adjuster  300  also includes a base  306  positioned below the support frame  302  on one side  308  thereof. A second base (not shown) is positioned below the support frame  302  on the opposite side. The base  306  includes a lower frame  310  with a bottom surface  312  configured to contact the bottom surface  52  of the cut-out  12 . The base  306  also includes a rear wedge  314  and a forward wedge  316  extending upwardly from the lower frame  310 . The rear wedge  314  includes a triangular-shaped body  318  having an inclined surface  320  extending from a lower end  322  to an upper end  324 . 
     The adjuster  300  also includes a sliding wedge  326  that is positioned between the rear wedge  314  and the support frame  302 . The sliding wedge  326  has a shell  328  including an upper surface  330  in contact with the support frame  302 . In some embodiments, the sliding wedge  326  may be secured to the support frame  302 . The shell  328  also includes an inclined surface  332  that is in contact with the inclined surface  320  of the rear wedge  314 . As shown in  FIGS. 6 and 7 , the wedge  326  is configured to slide upwardly and downwardly in the direction indicated by arrow  334  along the inclined surface  320  from the lower end  322  to the upper end  324  of the rear wedge  314 . 
     The forward wedge  316  includes a triangular-shaped body  336  having an inclined surface  338  extending from a lower end  340  to an upper end  342 . The inclined surface  338  has a slot  344  defined therein extending from an end  346  positioned adjacent to the lower end  340  of the body  336  to another end  348 . 
     The adjuster  300  also includes another sliding wedge  350  that is positioned between the forward wedge  316  and the support frame  302 . The sliding wedge  350  has a shell  352  including an upper surface  354  in contact with the support frame  302 . The shell  352  also includes an inclined surface  356  that is in contact with the inclined surface  338  of the forward wedge  316 . As shown in  FIG. 7 , the inclined surfaces  338 ,  320  of the wedges  314 ,  316  have approximately the same slope. The sliding wedge  350 , like the sliding wedge  326 , is configured to slide upwardly and downwardly in the direction indicated by arrow  358  along the inclined surface  338  of the forward wedge  316 . 
     The shell  352  has a pair of sidewalls  360 ,  362  that define a U-shaped channel  364 . The U-shaped channel  364  extends from a front end  366  to the inclined surface  356 . The sidewall  360  has an opening (not shown) defined therein and the sidewall  362  has a corresponding slot  370  defined therein opposite the opening  368 . 
     The adjuster  300  includes a mount  372  that is received in the opening  368  and the slot  370  of the sliding wedge  350 . The mount  372  has a head  374  and a body  376  extending therefrom. The head  374  is positioned in contact with the sidewall  360 , and the body  376  extends through the opening  368  and across the U-shaped channel  364 . The body  376  is received in the slot  370  of the sidewall  362 . The body  376  of the mount  372  is rotatable within the slot  370  and the opening  368  about an axis  378 . An eyelet  380  is defined in the mount  372 , extending through the body  376  orthogonally to the axis  378 . 
     The base  306  of the adjuster  300  includes a support  382  positioned between the rear wedge  314  and the forward wedge  316 . The support  382  includes a pair of posts  384 ,  386  extending upwardly from the lower frame  310 . The posts  384 ,  386  include a pair of holes (not shown) extending therethrough. 
     The adjuster  300  includes another mount  392  that is received in the pair of holes  388 ,  390 . The mount  392  has a head  394  and a body  396  extending therefrom. The head  394  is positioned in contact with the post  384 . The body  396  extends through the hole  388 , across the space between the posts  384 ,  386 , and is received in the hole  390  of the post  386 . The body  396  of the mount  392  is rotatable within the holes  388 ,  390  about an axis  398 . An eyelet  400  is defined in the mount  392 , extending through the body  396  orthogonally to the axis  398 . 
     The adjuster  300  also includes an adjustment rod  410  pivotably coupled to the sliding wedge  326  and the base  306 . As shown in  FIG. 7 , the rod  410  includes a head  412  and a body  416  extending therefrom. The head  412  is positioned in contact with the body  376  of the mount  372  and includes a socket  418  configured to receive a tool having a matching cross-section. As shown in  FIGS. 6 and 7 , the socket  418  has a hex-shaped cross-section. It will be appreciated that in other embodiments socket  418  may have a double hex-shaped, a square-shaped, or other suitable cross-section. It will also be appreciated that in other embodiments the head  412  may be formed with a grip or handle that the user can grasp to turn the rod  410 . 
     The head  412  has an outer diameter greater than the diameter of the eyelet  380  such that the head  412  is prevented from passing through the eyelet  380 . The body  416  of the rod  410  extends through the eyelets  380 ,  400  and the slot  344  to an end  420 . The body  416  is externally-threaded and the eyelet  400  has a corresponding internal thread. 
     To operate the height adjuster  300 , the user engages a tool such as, for example, a wrench having a suitable cross-section with socket  418  of the adjustment rod  410 . The user may then rotate the rod  410  about axis  422 . When the rod  410  is rotated in the direction indicated by arrow  424 , the body  416  is advanced through the eyelet  400 . As the body  416  is advanced through the eyelet  400 , the sliding wedge  350  is advanced upwardly along the inclined surface  338  of the forward wedge  316 , and the mounts  372 ,  392  rotate relative to the axes  378 ,  398 . Additionally, the sliding wedge  326  is advanced upwardly along the inclined surface  320  of the rear wedge  314 . As the sliding wedges  326 ,  350  are advanced upward, the support frame  302  (and, consequently, the lower frame  68  of the replacement built-in oven  60 ) is lifted or raised relative to the bottom surface  52  of the cut-out  12 . 
     The adjuster  300 , like the adapter  80 , includes a plurality of different lift positions. As best seen in  FIG. 7 , the inclined surface  338  of the forward wedge  316  includes indicia  430  that indicate each of predetermined positions of the adjuster  300 . As described above, based on the identity of the used built-in oven  10 , the person installing the replacement built-in oven  60  may select the predetermined position of the adjuster  300  corresponding to the identity of the used built-in oven  10  and then operate the adjuster  300  to position the adjuster  300  in the selected predetermined position and thereby increase the overall height of the replacement built-in oven  60 . 
     Referring now to  FIGS. 8-10 , another embodiment of a height adjuster (hereinafter adjuster  500 ) is shown. The adjuster  500  includes a support frame  502  secured to the lower frame  68  of the replacement built-in oven  60 . The support frame  502  includes an upper surface  504  that is placed in contact with the lower frame  68  when the adjuster  500  is attached to the replacement built-in oven  60 . It will be appreciated that in other embodiments the support frame  502  may replace the lower frame  68  to non-removably secure the adjuster  500  to the housing  66  of the replacement built-in oven  60 . 
     The adjuster  500  also includes a base  506  positioned below the support frame  502  on one side  508  thereof. A second base (not shown) is positioned below the support frame  502  on the opposite side. The base  506  includes a frame  510  with a bottom surface  512  configured to contact the bottom surface  52  of the cut-out  12  when the replacement built-in oven  60  is installed therein. 
     As best seen in  FIGS. 9 and 10 , the base  506  also includes a bracket  514  extending upwardly from the frame  510 . A rotating link  516  is pivotably coupled to the bracket  514  and the support frame  502 . The rotating link  516  has a body  518 , which is coupled to the bracket  514  at a pivot joint  520  and is coupled to the support frame  502  at a pivot joint  522 . The pivot joint  520  includes a cylindrical pivot pin  524  that extends through, and is received in, a pair of holes (not shown) defined in the bracket  514  and the body  518  of the link  516 . The pivot joint  522  similarly includes a cylindrical pivot pin  528  that extends through, and is received in, a pair of holes (not shown) defined in the support frame  502  and the body  518  of the link  516 . 
     As shown in  FIGS. 8-10 , the adjuster  500  is moveable between a lowered position and a raised position. The lowered position is shown in dashed in  FIG. 8  and best seen in  FIG. 9 . To move from the lowered position, the rotating link  516  is rotated clockwise about pivot joint  520 . Simultaneously, the rotating link  516  also pivots about the pivot joint  522  to move to the raised position shown in  FIGS. 8 and 10 . 
     The adjuster  500  includes a locking device  532  to lock the adjuster  500  at each position. In the illustrative embodiment, the locking device  532  includes a pin  534  that is received in a hole  536  extending through the body  518  of the rotating link  516  and is received in one of a pair of holes (not shown) defined in the support frame  502 . It will be appreciated that in other embodiments the locking device may take the form of a tab, groove, or other structure capable of locking the adjuster  500  at each position. 
     The body  518  of the rotating link  516  also includes a rotation stop  542 . When the adjuster  500  is moved from the lowered position shown in  FIG. 9  to the raised position shown in  FIG. 10 , the stop  542  formed on the body  518  engages with the frame  510  of the base  506  to prevent further movement of the rotating link  516 . It will be appreciated that in other embodiments the stop may take the form of a locking pin, tab, or other structure. 
     There are a plurality of advantages of the present disclosure arising from the various features of the method, apparatus, and system described herein. It will be noted that alternative embodiments of the method, apparatus, and system of the present disclosure may not include all of the features described yet still benefit from at least some of the advantages of such features. Those of ordinary skill in the art may readily devise their own implementations of the method, apparatus, and system that incorporate one or more of the features of the present invention and fall within the spirit and scope of the present disclosure as defined by the appended claims.