Patent Publication Number: US-2012028735-A1

Title: Golf tee

Description:
PRIORITY CLAIM/INCORPORATION BY REFERENCE 
     This application claims priority to U.S. Provisional Application Ser. No. 61/368,814 entitled “Two-Part Golf Tee” that was filed on Jul. 29, 2010 and names Lon Klein as inventor. The entirety of that application is hereby expressly incorporated by reference into this application. 
    
    
     BACKGROUND 
     In golf, a tee is normally used for the first stroke of each hole, and the area from which this first stroke is hit is informally also known as the teeing box, also known as the teeing ground. Normally, teeing the ball is allowed only on the first shot of a hole, called the tee shot, and is usually not allowed for any other shot. Teeing gives a considerable advantage for drive shots, so it is highly desirable whenever allowed. A standard golf tee is 2.750″ (two and three quarter inches) long, but both longer and shorter tees are permitted and are preferred by some players. 
     SUMMARY 
     A two-part golf tee having a core section with a substantially cylindrical tube, the core section having a first end and a second end, wherein the first end is configured to be inserted into a teeing ground. The two-part golf tee also includes an elevation section having a substantially cylindrical tube, the elevation section having a first end and a second end, wherein the first end of the elevation section is coupleable to the second end of the core section via one of a friction fit or a mechanical fit, the second end of the elevation section being configured to hold a golf ball. 
     A two-part golf tee having a core component configured to be at least partially inserted into a teeing ground and an elevation component configured to be releasably coupled to the core component and further configured to hold a golf ball. 
     A system having a plurality of core sections, each core section comprising a substantially cylindrical tube, each core section having a first end and a second end, wherein the first end is configured to be inserted into a teeing ground. The system further includes a plurality of elevation sections, each elevation section comprising a substantially cylindrical tube, each elevation section having a first end and a second end, wherein the first end of the elevation section is coupleable to the second end of the core section via a friction fit or mechanical fit, the second end of the elevation section being configured to hold a golf ball, a first number of the elevation sections having a first length and being color-coded or visually marked based on the first length and a second number of the elevation sections having a second length and being color-coded or visually marked based on the second length. 
    
    
     
       BRIEF DESCRIPTION OF DRAWINGS 
         FIG. 1  shows a first view of an exemplary embodiment of a two-part golf tee with the two parts separated. 
         FIG. 2  shows a top view of an exemplary embodiment of a two-part golf tee with the two parts separated. 
         FIG. 3  shows an exemplary core section tube of a two-part golf tee that is inserted into a teeing ground. 
         FIG. 4  shows an exemplary assembled two-part golf tee that has been inserted into the teeing ground. 
         FIGS. 5   a - d  show four different views of the same exemplary two-part golf tee where the elevation section is inserted at various depths into the core section. 
         FIG. 6  shows an exemplary embodiment of an elevation section that slides over the core section to form the tee. 
         FIG. 7  shows an exemplary core section that includes a variety of hash marks that may indicate the depth of insertion into the teeing ground and/or how far the elevation section has been inserted onto the core section. 
         FIG. 8  shows an exemplary elevation section that includes a variety of hash marks that may be used to indicate the depth to which the elevation section is inserted into the core section. 
         FIG. 9  shows a side view of an exemplary elevation section having an edge for holding the golf ball that includes micro interruptions. 
         FIG. 10  shows a cross-sectional side view of an exemplary elevation section that tapers to the edge for holding the golf ball. 
         FIG. 11  shows an example of a core section having a serrated bottom edge. 
         FIG. 12  shows an example of a core section having an irregularly shaped bottom edge. 
     
    
    
     DETAILED DESCRIPTION 
     The exemplary embodiments may be further understood with reference to the following description and appended drawings, wherein like elements are referred to with the same reference numerals. The exemplary embodiments describe a two-part golf tee that may be implemented to hold a golf ball for a tee shot by a player. 
       FIG. 1  shows a first view of an exemplary embodiment of a two-part golf tee  1  with the two parts  10 ,  20  separated. The two parts are referred to as the core section  10  and the elevation section  20 . As can be seen from  FIG. 1  and the other figures, the core section  10  and the elevation section  20  of the two-part golf tee  1  have a generally cylindrical shape. Each of the core section  10  and the elevation section  20  may be constructed from paper, cardboard or any other biodegradable material. Where the construction material is vulnerable to water damage such as paper or any other biodegradable material, it may be advantageous to provide the component  10 ,  20  with at least a temporary water resistant coating or a glossy material to impede water absorption. Other materials are also possible as will be described in greater detail below. In addition, it is possible that the core section  10  is constructed of a first composition while the elevation section  20  is constructed from a second and different composition. 
       FIG. 2  shows a top view of an exemplary embodiment of a two-part golf tee  1  with the two parts  10 ,  20  separated. As can be seen from  FIG. 2 , each of the core section  10  and the elevation section  20  have a generally circular cross-section. As will be described in greater detail below, the core section  10  and the elevation section  20  are constructed in such a manner that they may be connected or coupled to form the two-part golf tee. However, it is also noted that each component, the core section  10  or the elevation section  20  may also be used alone without the other component. This singular use may be with or without an insertion device as will be described in greater detail below. While the exemplary embodiments are shown with a circular cross-section, those skilled in the art will understand that other cross-sectional shapes are also possible, so long as those shapes facilitate the coupling of the core section  10  and the elevation section  20 . Moreover, it is also possible that the external cross-section is circular, but the internal cross-section is a different shape or vice versa. The purpose of varying the shape of the cross-section may include to increase the rigidity of the core section  10 , to facilitate coupling of the core section  10  with the elevation section  20 , to help the core section  10  hold fast in the teeing ground, to provide a specific look/feel for the tee, etc. 
     In the exemplary embodiment, the core section  10  is the outer portion of the two-part golf tee  1  when assembled and is the portion that will be inserted into the teeing ground. The core section  10  is rigid enough that it can be pressed down and inserted into the teeing ground by a golfer using his hand, fingers or even his foot. In addition, the ball can be used to apply leverage to press the core section  10  to imbed that component into the teeing ground. The wall thickness of the core section  10  may be used to provide the rigidity for insertion into the teeing ground. An exemplary wall thickness may be from 0.01 inches to 0.3 inches. However, this range is only exemplary and can vary depending on the construction material, the manufacturing procedures and tolerances. However, depending on playing conditions, other wall thicknesses may also be used. For example, in generally wet climates where the teeing ground tends to be softer, it may be possible to have a core section  10  that has a slightly smaller wall thickness because the core section  10  does not need to be as rigid to be inserted into the teeing ground. This also has the advantage of having less material in both construction of the tee  1  and later biodegradation and/or clean up of the tee  1 . 
     In another exemplary embodiment, an insertion tool may be used to insert the core section  10  into the teeing ground. This insertion may vary with the playing conditions of the golf course teeing grounds. For example, when the teeing ground is generally soft, the golfer may insert the core section by hand. However, if the teeing ground is hard, an insertion tool may be used to insert the core section  10  into the hard teeing ground (e.g., the insertion tool provides a mechanical advantage to apply more pressure to the core section  10  for inserting into the teeing ground). In another example, the insertion tool may prepare the teeing ground for insertion of the core section  10  (e.g., the insertion tool may pre-drill or make a depression of suitable size to create a space in preparation for placement of the core section  10 ). 
     In the exemplary embodiment, the length of the core section  10  is 0.5 inches, but other lengths for the core section  10  are also possible. In the exemplary embodiments, the core section  10  is shown as a hollow cylinder. In the exemplary embodiments, the internal diameter of the core section  10  has a range from 0.35 inches is 0.45 inches and the outside diameter of the core section has a range from 0.45 inches to 0.55 inches, but both the internal diameter and external diameter may vary as necessary for certain teeing ground conditions, with different soils or turf grasses. Moreover, the core section  10  may also be filled or partially filled. For example, partially filling the core section  10  with a structure such as a honeycomb or other corrugated structure may provide for additional rigidity of the core section  10 . It should be noted that the core section  10  may have at least a portion of the tube being hollow because, as will be described below, that is the portion that will receive the elevation section  20 . 
     The core section  10  may be fully or partially inserted into the teeing ground.  FIG. 3  shows an exemplary core section  10  of a two-part golf tee  1  that is inserted into a teeing ground  30 . As can be seen in this example, a lower portion  14  of the length of the core section  10  will be below ground in an inserted position and an upper portion  12  of the core section  10  will extend above ground in the inserted position. It is noted that the core section  10  may be provided with markings on the external surface so the golfer knows how far the core section  10  has been inserted into the teeing ground. The insertion of the core section  10  into the teeing ground  30  does not permanently damage the turf nor does it disturb the root structure of the grass, thereby preserving the integrity of the teeing ground  30  and allows for quicker regeneration of turf grasses. In addition, the design of the core section  10  provides for perfect perpendicularity to the surface of the teeing ground  30 . Specifically, the generally cylindrical shape of the core section  10  will mean that an even amount of pressure is exerted along the circumference of the core section  10  while it is being inserted into the teeing ground, resulting in the core section  10  being inserted to a uniform depth along its entire circumference. Thus, there will be no tilt to the core section  10  when it is inserted allowing for the upper edge of the core section  10  to be perpendicular with the teeing ground  30 . 
     As described above, the core section  10  may be constructed from paper, cardboard or any other biodegradable material. In addition, the core section  10  may also be constructed of any rigid material such as metal, composites, polymers, etc. The core section  10  is not required to be a biodegradable material because it will be placed in the teeing ground and may remain in the teeing ground after the ball has been struck. Thus, groundskeepers generally know the core sections  10  will be in the teeing ground and may clean those up from the teeing grounds and/or leave them in the teeing ground, if instructed. The core sections  10 , should they remain in the teeing ground, are easily removed by groundskeepers and maintenance personnel such as by mowers as per part of grass cutting procedure. In addition, the core sections  10  may remain in the teeing ground if so desired to play a second shot, or left to aerate the teeing ground. While not shown in the figures, it is possible for the exterior surface of the core section  10  to have serrations, pleats, texturing, ridges and/or other means for enhanced holding of the core section  10  in the teeing ground. In addition, the edges of the core may be serrated, a teeth-like shape or other regular or irregular shape to facilitate preparation and/or penetration of the teeing ground.  FIG. 11  shows an example of a core section  10  having a serrated bottom edge  50 , while  FIG. 12  shows an example of a core section  10  having an irregularly shaped bottom edge  55 . Again, many other shapes are possible and these two are only examples. The interior surface of the core section  10  may also be textured to provide control and/or fit characteristics for the elevation section  20 . This will be described in greater detail below. 
       FIG. 1  also shows that the two-part golf tee  1  includes an elevation section  20 . The elevation section  20  is the inner part when the two-part golf tee  1  is assembled. Similar to the core section  10 , the exemplary elevation section  20  has a generally circular cross-section as shown in  FIG. 2 . However, as described above, the elevation section  20  may take other shapes to mate with the core section  10 . Also similar to the core section  10 , the elevation section  20  is shown as being hollow in the examples, but may also be filled or partially filled, with a structure such as a honeycomb to provide additional rigidity to the elevation section  20 . In the exemplary embodiments, the internal diameter of the elevation section  20  has a range from 0.3 inches is 0.45 inches and the outside diameter of the elevation section  20  has a range from 0.35 inches to 0.5 inches, but both the internal diameter and external diameter may vary. 
     As described above, the core section  10  may be constructed from a variety of materials. Similarly, the elevation section  20  may also be constructed from a variety of materials including paper, composite materials, metal, plastics, etc. Any material that can support the weight of a golf ball is acceptable for use in constructing the elevation section. However, while not required, if the material used to construct the elevation section  20  is biodegradable, it may result in fewer environmental hazards. For example, it is likely that the elevation section  20  will be deflected and/or dislodged with respect to the core section  10  when the golfer strikes the ball. In many instances, the golfer may not retrieve the elevation section  20  and since the elevation section is no longer anchored to the teeing ground, it may have been hit out of the teeing ground or may make its way out of the teeing ground at later time (e. g., wind, golfer&#39;s kicking it, etc.). Thus, groundskeepers may not clean up all the elevation sections  20  because they may become scattered away from the teeing ground. In such cases, it would be helpful, but not required, that he elevation sections be biodegradable. In addition, the material should also not pose any threat to the flora or fauna. Moreover, the material of the elevation section  20  should be such that it does not cause any damage to very thin golf club faces nor that it provides no resistance to the club head path or deflect the club face when it is struck. This is both to prevent damage to the club and to provide the golfer with the maximum benefit of the two-part golf tee. 
     The elevation section  20  is the portion of the two-part tee  1  that will hold the ball when the tee  1  is assembled and inserted into the teeing ground. To provide the golfer with the most efficient experience, the elevation section  20  should provide minimal contact with the ball surface and the material of the elevation section  20  should not sit in the dimples of the golf ball when the golf ball is placed on the elevation section  20 . Specifically, the golf ball will lie on the surface of the elevation section  20  such that the elevation section  20  contacts the surface of the golf ball at the interface that forms the boundaries of the dimples. In some exemplary embodiments, the edge of the elevation section  20  which is configured to hold the ball may be shaped in such a manner to permit a minimum of surface contact with the ball. For example, the edge may be a micro-interrupted ring or a tapered point.  FIG. 9  shows a side view of the elevation section  20  having an edge  22  that includes micro interruptions, while  FIG. 10  shows a cross-sectional side view of the elevation section  20  that tapers to the edge  22 . It should be noted that the taper could be from the inside wall to the outside wall or vice versa. Again, these are only two of the many possible embodiments for minimizing surface contact with the golf ball. The portion of the edge that contact the ball would be on the ridges that form the dimple interfaces. The micro-interruptions and tapering are only exemplary and other low contact surfaces may also be used. This efficient sitting of the golf ball on the elevation section  20  allows for freer rotation of the ball and a lower coefficient of friction between the ball and the elevation section  20 . This results in reduced spin rate for the ball when it is struck off the tee  1  which should increase the distance the ball is hit by the golfer. Moreover, the tee  1  may allow for more accurately applied spin and tighter dispersion patterns, especially with the driver. 
     In order to accomplish this, the wall thickness of the elevation section  20  should generally be kept to a minimum in the area where the ball will sit on the elevation section  20 . In one exemplary embodiment, the wall thickness is in the range of 0.01 inches to 0.30 inches. Referring to  FIGS. 1 and 2 , the upper edge  22  of the elevation section  20  is shown. This upper edge  22  is the portion of the elevation section  20  that will support the golf ball. Thus, the wall thickness in this upper edge  22  area is what should be kept to a minimum for the reasons described above. The above wall thickness is only exemplary and other wall thicknesses that are smaller or greater may also be used. 
     It should be noted that the wall thickness may be uniform throughout the entire length of the elevation section  20  or that the wall thickness may vary and taper from one end to the other. In the event that the wall thickness tapers, the tapering could be in either direction, e.g., from the end of the elevation section  20  that is for insertion into the core section  10  to the end of the elevation section that is configured to hold the golf ball, or vice versa. In addition, the tapering could be provided such that the inner surface is tapered and the outer surface is uniform or vice versa. The elevation section  20  may be provided with a means such as a visual cue or insertion mechanism so that the golfer inserts the proper end of the elevation section  20  into the core section  10 . If the elevation section  20  has a uniform wall thickness throughout, then such insertion cues may not be needed because either end of the elevation section  20  may be inserted into the core section  10 . 
     The elevation section  20  may be inserted into the core section  10  after the core section  10  has been inserted into the teeing ground. Thus, to assemble the two-part golf tee  1 , a golfer may first insert the core section  10  into the teeing ground as described above, and then insert the elevation section  20  into the core section  10 . The elevation section  20  may then hold the golf ball for the golfer to strike. 
       FIG. 4  shows an exemplary assembled two-part golf tee  1  that has been inserted into the teeing ground  30 . As described above, the core section  10  is inserted into the teeing ground  30  such that a first portion  14  is below the surface of the teeing ground and a second portion  12  extends above the teeing ground. The elevation section  20  is inserted into the core section  10 . A top edge  22  of the elevation section  20  extends above a top edge  16  of the core section  10 . The golf ball may rest on the top edge  22  of the elevation section  20  for the golfer to strike. 
     As shown in  FIG. 4 , the elevation section  20  is inserted into the center opening of the core section  10 . Referring to  FIG. 2 , it is shown that the cross-sectional outer diameter (d 1 ) of the elevation section  20  is less than the cross-sectional inner diameter (d 2 ) of the core section  10  such that the elevation section  20  may be inserted into the core section  10 . The inner diameter (d 2 ) of the core section  10  and the outer diameter (d 1 ) of the elevation section  20  are sized such that the insertion of the elevation section  20  into the core section  10  causes a friction fit between the components  10  and  20 . In order to provide the friction fit, the outer diameter (d 1 ) of the elevation section  20  is slightly smaller than the inner diameter (d 2 ) of the core section. The friction fit is such that the placing of a golf ball on top of the elevation section  20  will not cause the elevation section  20  to move in relation to the core section  10 , unless the golfer pushes or pulls hard enough to intentionally change the relationship. In addition to the friction fit, the elevation tube  20  may also be supported by the turf material of the teeing ground within the confines of the core section  10 . 
     In addition, as described above, the internal surface of the core section  10  and the external surface of the elevation section  20  may be textured to provide additional friction for a better fit between the two components. In addition to or as an alternative to textures, these surfaces, either individually or collectively, may include fine ribs, nubs, pleats, ridges, serrations, score lines, etc. to provide for better friction contact between the two components  10 ,  20  when the two-part golf tee  1  is assembled. In addition to friction fitting, these additional features of the surface may also lock or selectively engage corresponding features on the other surface. For example, if the outer surface of the elevation section  20  includes nubs, the inner surface of the core section  10  may include depressions or ridges to engage the nubs. 
     The friction fit allows the elevation section  20  to be fully or partially inserted into the core section  10 . As described above, in one exemplary embodiment, the core section  10  will be partially inserted into the teeing ground. The elevation section  20  may be inserted to a depth anywhere along the length of the core section  10 , including for example, to a depth that is below ground level, even with ground level or above ground level. When above ground level, the friction fit holds the elevation section  20  in relation to the core section  10 . Those skilled in the art will understand that this allows for an adjustment in the height of the tee. It is also noted that the external surface of the elevation section  20  may also include markings or visual cues to indicate how far the elevation section  20  has been inserted into the core section  10  or to indicate a height of the tee  1 . 
       FIGS. 5   a - d  show four different views of the same exemplary two-part golf tee  1  where the elevation section  20  is inserted at various depths into the core section  10 . That is, each two-part tee  1  of  FIGS. 5   a - d  is comprised of the exact same core section  10  having the same core section length and elevation section  20  having the same elevation section length. By way of example, the core section  10  may have a core section length of 0.5 inches, while the elevation section  20  may have an elevation section length of 1.875 inches. In  FIG. 5   a , the elevation section  20  is shown as being inserted to a depth of approximately the entire length of the core section  10 . The portion of the elevation section  20  is shown as dashed lines within the core section  10 . This results in an overall length L 1  of the two-part tee  1  being approximately 1.875 inches. That is, since the elevation section  20  is fully inserted into the core section  10 , the overall length of the coupled tee  1  is approximately the same as the elevation section  20 . It should be noted that in the examples provided, the lengths are described in terms of the tee length and not the tee height because the actual height of the tee will depend on the depth at which the core section  10  is inserted into the teeing ground. 
       FIG. 5   b  shows the elevation section  20  as being inserted to a depth of approximately three quarters of the core section  10 , or approximately 0.375 inches. This results in the overall length L 2  of the two-part tee  1  being approximately 2 inches.  FIG. 5   c  shows the elevation section  20  as being inserted to a depth of approximately one half of the core section  10 , or approximately 0.25 inches. This results in the overall length L 3  of the two-part tee  1  being approximately 2.125 inches.  FIG. 5   d  shows the elevation section  20  as being inserted to a depth of approximately one quarter of the core section  10 , or approximately 0.125 inches. This results in the overall length L 4  of the two-part tee  1  being approximately 2.25 inches. It is noted that in the exemplary embodiment, the elevation section  20  is inserted to a depth of at least 0.125 inches (as shown in  FIG. 5   d ) to provide enough contact between the elevation section  20  and the core section  10  to support the elevation section  20  and the golf ball. However, depending on the actual materials from which the sections  10  and  20  are constructed and /or the manufacturing tolerances for the sections  10  and  20 , it may be possible to provide a stable fit between the elevation section  20  and the core section  10  at insertion depths that are less than 0.125 inches. 
     As can be seen from the above examples, the same core section  10  and elevation section  20  allow a golfer to adjust the two-part tee  1  through a range of heights. As described above the friction fit between the elevation section  20  and the core section  10  allows the elevation section  20  to remain at the desired height and to hold the ball without moving. It should be understood that the lengths for the core section  10  and the elevation section  20  used above are only exemplary. As described above, the core section  10  may be any length and as will be described in more detail below, the elevation section  20  may come in various lengths. In addition, though only four insertion depths were described it should be apparent that the elevation section  20  may be inserted at any depth within the core section  10  above the minimum depth required for a stable fit. 
     As described above with reference to  FIG. 5 , the friction fit of the elevation section  20  and the core section  10  allows for some adjustment of the height of the two-part golf tee  1 . However, individual golfers may prefer dramatically different tee heights when teeing off with different clubs such as woods, fairway metals, hybrids and irons. In addition, different golfers may prefer dramatically different heights of tees when teeing off with the same club depending on course conditions. The amount of adjustment in one of the embodiments may not be enough to accommodate these differences. Thus, there may be many embodiments of the elevation section  20  that can be pre-cut to various lengths. 
     In the example of  FIG. 5 , the exemplary elevation section  20  was described as having a length of 1.875 inches. Such an embodiment may be preferred by a golfer using a driver to tee off on a long par 4 or par 5 hole. However, when using an iron to tee off, the golfer may prefer a shorter tee that the embodiment of  FIG. 5  cannot accommodate. Thus, in other exemplary embodiments, the elevation section  20  may have an elevation section lengths from 0.5 inches to 3.67 inches which, when used in conjunction with the core section  10  results in a variety of tee heights that conform to the rules of golf 
     Again, the above-mentioned lengths for the elevation section  20  are only two examples of the various lengths that may be used for the elevation section  20 . It may be possible to have many multiple lengths for the elevation section  20 . The elevation sections  20  having different lengths may be color-coded or visually marked to indicate the length of the elevation section  20  for easy selection by a golfer. This color-coding and/or marking of the elevation sections may also aid the golfer in seeing and recovering the elevation section  20  in the grass after the player has teed off. In addition to the color-coding, or in the alternative, the elevation tubes  20  may be marked to indicate a preferred club with which the elevation tube should be used. 
     In one exemplary embodiment, the two-part tees  1  may be provided in a pack that includes various lengths of the elevation sections  20  and a corresponding number of core sections  10 . The pack may be, for example, designed for use for a single round of golf. In the exemplary embodiments, the diameter of the core section  10  and the different lengths of the elevation sections  20  may be consistent, such that any of the different elevation sections  20  may be assembled with any core section  10 . Thus, the exemplary pack may be supplied with multiple core sections  10  (e.g., a quantity of thirty (30) core sections) and multiple elevation sections  20  (e.g., a quantity of ten (10) elevation sections  20  having a first length, a quantity of ten (10) elevation sections  20  having a second length  20  and a quantity of ten (10) elevation sections  20  having a third length). Thus, any of the different length elevation sections  20  may be used interchangeably with the core sections  10 . It is noted that the above quantities and types of core sections  10  and elevation sections  20  in the pack are only exemplary, any combination of quantities and/or types of core sections  10  and elevation sections  20  may be provided in a pack. 
     It should also be reiterated that while the examples have been described as having a core section  10  with a fixed length, it is also possible to provide different core sections  10  having different lengths. These different length core sections  10  may be designed for universal use with any length elevation section  20  or may also be designed for use with a specific length elevation section  20 . Where the core section  10  is designed for use with a specific length elevation section  20 , the diameters of the core section  10  and corresponding elevation sections may be complementary such that other elevation sections and/or core sections may not be suitable for use with non-complementary core and/or elevation sections. In an alternative embodiment, the complementary core sections  10  and elevation sections  20  may have a specific cross-sectional shape that indicates they are complementary. Examples of cross-sectional shapes that are not substantially circular include, star shapes, hexagonal shapes, or any multiple sided shape. 
     In the above exemplary embodiments, it was described that the outer diameter of the elevation section  20  was smaller than the inner diameter of the core section  10  so that the elevation section  20  is inserted into the core section  10  to provide the friction fit between the sections  10  and  20 . However, in an alternative embodiment, it is also possible that the inner diameter of the elevation section  20  is greater than the outer diameter of the core section  10 . In such an embodiment, the elevation section  20  would slip over the core section  10  and form a friction fit in that manner. In such an embodiment, at least a portion of the core section  10  may protrude from the teeing ground when it is inserted to receive the elevation section  20 .  FIG. 6  shows an exemplary embodiment of an elevation section  20  that slides over the core section  10  to form the tee  1 . Thus, in this embodiment, the core section  10  is inserted into the teeing ground with at least a portion of the core section  10  extending above the teeing ground. The outer diameter of the core section  10  is slightly larger than the inner diameter of the elevation section  20  such that when the elevation section  20  is inserted over the core section  10 , a friction fit is created to hold the elevation section  20  in a desired relationship with the core section  10 . Thus, the embodiment of  FIG. 6  is similar to the other embodiments described herein, except that the elevation section  20  slips over the core section  10 , rather than into the core section  10  as described for the other embodiments. 
     As described above in various sections, either or both of the core section  10  and the elevation section  20  may include markings to provide for visual feedback to the golfer. In a first example, the core section  10  may be provided with markings indicating a depth to which the core section  10  has been inserted into the teeing ground. In a second example, the markings on the core section may indicate how far the elevation section  20  has been inserted onto the core section  10  in the embodiment of  FIG. 6 . These markings may be any type of visual markings that allow the golfer to determine the above information including such things as hash marks, lines that extend completely around the core section  10 , etc.  FIG. 7  shows an exemplary core section  10  that includes a variety of hash marks  40  that may indicate the depth of insertion into the teeing ground and/or how far the elevation section  20  has been inserted onto the core section  10 . Similarly, the elevation section  20  may also include markings that show the depth to which the elevation section  20  has been inserted into the core section  10 .  FIG. 8  shows an exemplary elevation section  10  that includes a variety of hash marks  45  that may be used to indicate the depth to which the elevation section  20  is inserted into the core section  10 . 
     From the above examples, it should be seen that the two-part golf tee  1  also provides the golfer with the ability to have a consistent and repeatable tee height for every club in the bag. The golfer may insert the core section  10  into the teeing ground to a consistent depth and then insert the elevation section  20  to a consistent depth within the core section  10  for each tee shot. Thus, the two-part tee  1  may provide the golfer with a better golfing experience because of the consistency of the height of the tee throughout the round of golf and throughout all the clubs in the bag. 
     Throughout this description it was described that the core section  10  is inserted into the teeing ground and then the elevation section  20  is inserted into the core section  20 . However, this is only exemplary, it is also possible to insert the core section  10  and the elevation section  20  into the teeing ground as a unified tee. Furthermore, the core section  10  and the elevation section  20  may also be manufactured as a single entity. Also, as described above, the core section  10  and/or the elevation section  20  may be independently used as a single piece if so desired and as conditions permit. 
     It is also noted that throughout this description, it was generally described that the coupling of the core section  10  to the elevation section  20  was accomplished via a friction fit. However, there were also described certain mechanical fit features such as nubs, depressions, ridges, special shapes, etc. These mechanical fit features may be employed in addition to or as an alternative to the friction fit features. That is, it is possible to construct the tee  1  without any friction fit between the core section  10  and elevation section  20 , but merely rely on mechanical fit features described herein to accomplish the coupling. Other examples of mechanical fit features may include threads that are included on one or both of the core section  10  or elevation section  20  such that the sections may be screwed together. In another example, one of the sections  10 ,  20  may have ridges, while the other section  10 ,  20  may have complementary ridges that accept the ridges on the other section such that the sections can either be rotated to attach or pushed/pulled to connect. 
     It will be apparent to those skilled in the art that various modifications may be made in the present invention, without departing from the spirit or the scope of the invention. Thus, it is intended that the present invention cover modifications and variations of this invention provided they come within the scope of the appended claimed and their equivalents.