Abstract:
An entrapment device for entrapping projectile or flying objects employed in a game, such as flying discs employed in the game of disc golf, comprises an entrapment frame assembly including a top basket support and a bottom basket support. The entrapment device comprises a net attachable to the top basket support and having an entrapment zone portion adapted to absorb kinetic energy from the projectile or flying object to cause the projectile or flying object to drop into and be entrapped in the bottom basket support.

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS  
       [0001]    This non-provisional application claims the benefit of the filing date of Provisional U.S. Patent Application Serial No. 60/309,106, entitled “ENTRAPMENT DEVICE HAVING A NET,” having Attorney Docket No. D242.101.101, and having a filing date of Jul. 31, 2001, and which is herein incorporated by reference. 
     
    
     
       THE FIELD OF THE INVENTION  
         [0002]    The present invention generally relates to entrapment devices for entrapping projectile or flying objects in games or sports, and more particularly, to a 360 degree entrapment device, such as employed to entrap flying discs, such as flying discs used in the sport of disc golf.  
         BACKGROUND OF THE INVENTION  
         [0003]    The sport of disc golf has become increasing more popular in recent years. Disc golf is typically played on courses laid out in parks, other recreational areas, or on areas specifically constructed as disc golf courses. Disc golf courses typically include a certain number of holes similar to a golf course, such as a 9-hole or 18-hole course. Each hole on the disc golf course typically includes a tee from which a player throws a flying disc toward a 360 degree entrapment device. Similar to the game of golf, on properly laid out disc golf courses, the flying disc is not typically entrapped in the entrapment device on the first throw. Thus, the disc is picked up and thrown again from where it lands toward the entrapment device for the particular hole. The player keeps on throwing from the landing place towards the entrapment device until the disc is entrapped by the entrapment device. Typically, the number of throws taken by a given player to land the disc in the entrapment device are added to provide the total score for that player for the given hole. Similar to golf, the winning player is typically the player with the lowest total score for all holes.  
           [0004]    One type of conventional disc 360 degree entrapment device includes a center pole, a lower basket, and an upper support structure from which a plurality of loosely hanging chains are disposed above the basket. The chains are typically functionally arranged to effectively catch a flying disc by absorbing the disc&#39;s kinetic energy and dropping the disc into the basket.  
           [0005]    The increasing popularity of disc golf in recent years has spurred improvements to discs and the disc entrapment devices. Players can select from numerous types of flying discs varying in design, size, and weight. Many types of complex disc entrapment devices have been designed in the attempt to more effectively absorb the kinetic energy of the wide variety of flying discs and the wide variety of throwing techniques. The majority of the disc entrapment devices employ chains as the entrapment apparatus to absorb the kinetic energy from the flying disc.  
           [0006]    The tolerance for an occasional rejection of a well thrown disc by the disc entrapment device has diminished as the skill of the professional or serious amateur disc golfer has increased. In addition, in recent years there are many more social and recreational disc golf players who use light flying discs which are easier for the recreational player to control. Many times, a lighter disc does not have sufficient mass to overcome the mass of the chains and is consequently rejected by the entrapment device.  
           [0007]    Most conventional flying disc entrapment devices are permanently mounted into the ground. Moreover, the chains of the entrapment device are typically heavy and make the device more cumbersome.  
           [0008]    As a result, most conventional chain entrapment devices are not suitable as a portable entrapment device. Furthermore, flying discs can be damaged over time from repeated striking of the disc into the chains of the entrapment device. The flying discs striking the chains can also be quite noisy.  
           [0009]    For reasons stated above and for other reasons presented in the Description of the Preferred Embodiment section of the present specification, there is a desire for an improved 360 degree entrapment device for sports, such as disc golf. There is particularly, a desire for a flying disc entrapment device which is less costly and is more portable yet still has a high degree of catchability desired by the serious amateur or professional disc golfer. An improved portable disc entrapment device is desired which would be better suited for use in areas other than specifically constructed disc golf courses.  
         SUMMARY OF THE INVENTION  
         [0010]    One aspect of the present invention provides an entrapment device for entrapping projectile or flying objects employed in a game. The entrapment device comprises an entrapment frame assembly and a net. The entrapment frame assembly includes a top basket support and a bottom basket support. The net is attachable to the top basket support. The net has an entrapment zone portion adapted to absorb kinetic energy from the projectile or flying object to cause the projectile or flying object to drop into and be entrapped in the bottom basket support. 
       
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS  
       [0011]    [0011]FIG. 1 is a perspective view of one embodiment of a portable 360 degree assembled entrapment device with net attached.  
         [0012]    [0012]FIG. 2 is a perspective view of one embodiment of an entrapment frame assembly of the entrapment device of FIG. 1.  
         [0013]    [0013]FIG. 3 is a perspective view of one embodiment of a 360 degree net unattached from the 360 degree entrapment device of FIG. 1.  
         [0014]    [0014]FIG. 4A is a detailed perspective view of one embodiment of a bottom portion of the net of FIG. 3 illustrating a spring steel ring woven through the net and attached to the entrapment device of FIG. 1.  
         [0015]    [0015]FIG. 4B is a detailed perspective view of one embodiment of a bottom portion of a net attached to an entrapment device via cording woven through the net and employing an adjustable cord lock to synch the cording.  
         [0016]    [0016]FIG. 5A is a top perspective view illustrating one embodiment of a top of the net of FIG. 3 attached to the entrapment device of FIG. 1 via cording woven through the net.  
         [0017]    [0017]FIG. 5B is a top perspective view illustrating one embodiment of a top of a net attached to an entrapment device via cording woven through the net and employing an adjustable cord lock to synch the cording.  
         [0018]    [0018]FIG. 6 is a perspective view of one embodiment of a center portion of the net of FIG. 3 with braided cable woven through the net.  
         [0019]    [0019]FIG. 7 is a bottom perspective view of one embodiment of a top basket support of the entrapment frame assembly of FIG. 2.  
         [0020]    [0020]FIG. 8 is a top perspective view of one embodiment of a bottom basket support of the entrapment frame assembly of FIG. 2.  
         [0021]    [0021]FIG. 9 is a side view of one embodiment of a center support tube of the entrapment frame assembly FIG. 2.  
         [0022]    [0022]FIG. 10 is a perspective view of one embodiment of an assembled and extended tripod of the entrapment frame assembly of FIG. 2.  
         [0023]    [0023]FIG. 11 is a perspective view of one embodiment of a collapsed tripod of the entrapment frame assembly of FIG. 2.  
         [0024]    [0024]FIG. 12 is a side view of a U-shaped spring clip insertable into tubing for attaching tubing in the entrapment frame assembly of FIG. 2.  
         [0025]    [0025]FIG. 13 is a top view of the U-shaped spring clip of FIG. 12 inserted into tubing of the entrapment frame assembly of FIG. 2.  
         [0026]    [0026]FIG. 14 is a perspective view of one embodiment of a portion of a collapsed 360 entrapment device.  
         [0027]    [0027]FIG. 15 is a perspective view of one embodiment of a 360 degree assembled entrapment device with net attached which is mounted in an upright position in the ground via a concrete base. 
     
    
     DESCRIPTION OF THE PREFERRED EMBODIMENTS  
       [0028]    In the following detailed description of the preferred embodiments, reference is made to the accompanying drawings which form a part hereof, and in which is shown by way of illustration specific embodiments in which the invention may be practiced. It is to be understood that other embodiments may be utilized and structural or logical changes may be made without departing from the scope of the present invention. The following detailed description, therefore, is not to be taken in a limiting sense, and the scope of the present invention is defined by the appended claims.  
         [0029]    One embodiment of a portable 360 degree assembled entrapment device employing a net according to the present invention is generally illustrated at  30  in FIG. 1. One implementation of the portable entrapment device  30  is to entrap flying discs, such as flying discs employed in disc golf.  
         [0030]    Other embodiments of an entrapment device according to the present invention could be used as a target for projectile or flying objects other than flying discs where it is desirable to use a 360-degree entrapment device; particularly one constructed using a net. Other possible uses of such constructed entrapment devices could be to entrap golf balls, baseballs, soccer balls, volley balls, tennis balls, footballs, basketballs, hockey pucks, playground balls, or other similar objects. The relative size of such constructed entrapment devices could be smaller or much larger than the entrapment device  30  illustrated in FIG. 1.  
         [0031]    Entrapment device  30  includes an entrapment frame assembly  32  and a net  34  which together form an entrapment zone  36 , a basket section  38  and a base section  40 . Portions of net  34  are not shown in many of the Figures to more clearly illustrate features of entrapment device  30 , but a complete view of one embodiment of an unattached net  34  is shown in FIG. 3. In operation, entrapment zone  36  includes a portion of net  34  which functions as an energy absorbing material to gently and quietly absorb the kinetic energy of the flying discs resulting from the forward motion of the flying discs as well as from the spin of the disc. As a result, when a flying disc is thrown by a player towards the entrapment zone  36 , the net  34  is functionally arranged to effectively catch a variety of disc designs, sizes, and weights and at a variety of velocities by absorbing the disc&#39;s kinetic energy and dropping the disc into basket section  38 . In addition, the flying discs are not easily damaged by the netting of net  34  when the flying discs repeatedly strike the netting.  
         [0032]    In the embodiment illustrated in FIG. 1, base section  40  of portable entrapment device  30  comprises a tripod  44 . Tripod  44  provides a stable base section  40  for the portable entrapment device  30  on ground or surface  42 .  
         [0033]    One embodiment of portable entrapment frame assembly  32  of entrapment device  30  is illustrated generally in FIG. 2. Portable entrapment frame assembly  32  includes a top basket support  46 , a bottom support basket support  48 , a central support tube  50 , and base section  40  comprising tripod base  44 . In the illustrated embodiment, top basket support  46  includes a top basket ring  52  attached with three straight radially extending top basket spokes  52  to a top basket central tubing  56 . In the illustrated embodiment, bottom basket support  48  includes bottom basket ring  58  attached with three approximately 90 degree upwardly bent and radially extending bottom basket spokes  60  to bottom basket central tubing  62 . In the illustrated embodiment, central support tube  50  couples between the top basket central tubing  56  and bottom basket central tubing  62  to form the center support of entrapment frame assembly  32 .  
         [0034]    In the illustrated embodiment, tripod base  44  includes tripod central tubing  64  which is coupled to the bottom end of bottom basket central tubing  62  to couple tripod base to entrapment frame assembly  32 . Tripod base  44  also includes three tripod leg mount tubings  66  attached (e.g., via welding, such as indicated at  69 ) to tripod central tubing  64  at points approximately 120 degrees from each other. In the illustrated embodiment, three tripod legs  68  are attached into the three corresponding tripod leg mount tubings  66 .  
         [0035]    In one example embodiment, tripod legs  68  each have an upper end section  70 , a lower end section  72 , and a middle section  74 . Upper end section  70  is coupled into a corresponding tripod leg mount tubing  66 . In one embodiment, middle section  74  extends at an approximately 45 degree angle from upper end section  70  and correspondingly at the same approximately 45 degree angle from the corresponding tripod leg mount tubing  66 . In this embodiment, lower end section  72  extends at an approximately 45 degree angle downwardly from middle section  74  to form a vertically upright foot of tripod base  44  which contacts ground  42  at an approximately 90 degree angle and is substantially parallel to upper end section  70  and correspondingly parallel to its corresponding tripod leg mount tubing  66 . In one embodiment, lower end sections  72  of the three tripod legs  68  are located outside of a diameter of bottom basket ring  58  so as to provide adequate support for the assembled portable entrapment device  30 .  
         [0036]    In one embodiment illustrated in FIG. 3, a knot-less nylon netting  76 , such as a nylon golf netting, typically used for hitting golf balls into, is sewn into a tube shape to thereby form a suitable net  34 . The nylon golf netting used to form net  34  in this embodiment provides a durable, yet flexible, soft, and quiet entrapment apparatus. One suitable type of netting  76  is {fraction (15/16)} th  inch square mesh number 252 knot-less nylon netting.  
         [0037]    The circumference of net  34  is preferably larger than the circumference of the top basket ring  52  to allow entrapment device  30  to entrap flying discs more effectively than a smaller sized net. One example embodiment of net  34  has a circumference which is approximately three times its height (e.g., circumference of 120{fraction (15/16)} th  inch square meshes and height of 43{fraction (15/16)} th  inch square meshes).  
         [0038]    In one embodiment illustrated in detail in FIG. 4A, a spring steel ring  78  is threaded through a bottom mesh row of net  34  and attached to assembled entrapment device  30  at the three approximately 90 degree bent bottom basket spokes  60  with cable ties  80  or other suitable attachment means, such as string or clips. Spring steel ring  78  allows the bottom of net  34  to remain in relatively the same position when the entrapment device is employed to entrap flying discs.  
         [0039]    As illustrated in detail in FIG. 4B, an alternative embodiment of the bottom of net  34  does not use a spring steel ring at the bottom mesh row and instead the bottom of net  34  is attached to bottom basket support  48  with cording  82 , which is woven through the bottom mesh row of net  34  and locked with an adjustable cord lock  83 . In this alternative embodiment, cording  82  is pulled into three loops  85  at three substantially equal distant points around the circumference of the bottom of net  34 . In one embodiment, the three loops  85  in cording  82  are looped under one corresponding bottom basket spoke  60  and then placed over the top of bottom basket central tubing  62 . Cording  82  is threaded through adjustable cord lock  83 , which is employed to securely tighten the cording at the top of bottom basket support  48 . Attaching the bottom of net  34  in the manner described allows the net to remain in relatively the same position when entrapment device  30  is used to entrap flying discs.  
         [0040]    In another alternative embodiment, the bottom of net  34  does not use spring steel ring  78  and is not attached with cording  82 . In this alternative embodiment, the bottom of net  34  freely hangs below bottom basket support  48 .  
         [0041]    As illustrated in detail in FIG. 5A, in one embodiment the top of net  34  is attached to top basket support  46  with a cording  82 , which is woven through the top mesh row of net  34 . In one embodiment cording  82  is pulled into four loops  84  at four substantially equal distant points around the circumference of the top of the net  34 . The four loops  84  in cording  82  are then placed over the top of top basket central tubing  56 . Attaching the top of net  34  in the manner described allows the net to remain in relatively the same position when entrapment device  30  is used to entrap flying discs.  
         [0042]    As illustrated in detail in FIG. 5B, in an alternative embodiment the top of net  34  is attached to top basket support  46  with cording  82 , which is woven through the top mesh row of net  34  and locked with an adjustable cord lock  83 . In this alternative embodiment, cording  82  is pulled into three loops  85  at three substantially equal distant points around the circumference of the top of the net  34 . In one embodiment, the three loops  85  in cording  82  are looped under one corresponding top basket spoke  54  and then placed over the top of top basket central tubing  56 . Cording  82  is threaded through adjustable cord lock  83 , which is employed to securely tighten the cording at the top of top basket support  46 . Attaching the top of net  34  in the manner described allows the net to remain in relatively the same position when entrapment device  30  is used to entrap flying discs.  
         [0043]    As illustrated in detail in FIG. 6, in one embodiment a plastic sheath covered braided-metal cable  86  is threaded through net  34  so that the braided-metal cable  86  is positioned in the inside bottom of bottom basket support  48  when entrapment device  30  is assembled. The braided-metal cable  86  acts as a positioning device for net  34  and also helps to absorb some of the kinetic energy of flying discs thrown into entrapment device  30 .  
         [0044]    FIGS.  7 - 13  illustrate subassemblies and components of one embodiment of a disassembled portable entrapment frame assembly  32 . In particular, FIG. 7 illustrates one embodiment of a top basket support  46 . FIG. 8 illustrates one embodiment of a bottom basket support  48 . FIG. 9 illustrates one embodiment of a central support tube  50 . FIG. 10 illustrates one embodiment of a tripod base  44  in an expanded standing position.  
         [0045]    As illustrated in FIG. 11, tripod legs  68  of the tripod base  44  can be nested down to allow the tripod base to fit into a much smaller area, which is a benefit when transporting entrapment device  30 .  
         [0046]    As illustrated in FIGS.  7 - 11 , in one embodiment of entrapment frame assembly  32 , top basket central tubing  56 , bottom basket central tubing  62 , central support tube  50 , tripod central tubing  64 , and tripod leg mount tubings  66  all comprise an outer type tubing  88 . In addition, each of the above described tubing to tubing attachment points employs an inner type tubing  90  of smaller diameter than outer type tubing  88 . In the embodiment illustrated in FIGS.  7 - 11 , inner type tubing  90  is fixedly attached to the top end of central support tube  50  to correspondingly fit into the bottom of outer type tubing  88  of top basket central tubing  56 . Inner type tubing  90  is fixedly attached to the top end of outer type tubing  88  of bottom basket central tubing  62  to be inserted into the bottom of outer type tubing  88  of central support tube  50 . Similarly, inner type tubing  90  is also fixedly attached into outer type tubing  88  of tripod central tubing  64  to be inserted into the bottom end of outer type tubing  88  of bottom basket central tubing  62 .  
         [0047]    In one embodiment, inner type tubing  90  is fixedly attached into the top end of central support tube  50 , the top end of bottom basket central tubing  62 , and the top end of tripod central tubing  64  by plug welding, as indicated  92 , into the inside of the corresponding outer type tubing  88 . In one embodiment, each of the inner type tubings  90  have a hole  94  formed (e.g., by drilling) through a side wall in one location.  
         [0048]    One embodiment of a U-shaped spring clip is generally illustrated at  96  in FIG. 12. U-shaped spring clip  96  includes a protruding male connector portion  98 .  
         [0049]    As illustrated in FIG. 13, U-shaped spring clip  96  is inserted into the inner type tubings  90  such that the protruding male connector portion  98  of the spring clip  96  protrudes through hole  94  formed in the inner type tubing  90 . Additionally, as illustrated in FIGS.  7 - 9 , at the tubing to tubing connection points, each of the outer type tubings  88  of top basket central tubing  56 , bottom basket central tubing  62 , and central support tube  50  have a hole  100  formed (e.g., by drilling), through a side wall at the bottom end of the outer type tubings  88 .  
         [0050]    At the tubing to tubing connections points between central support tube  50  and top basket central tubing  56 , between central support tube  50  and bottom basket central tubing  62 , and between bottom basket central tubing  62  and tripod central tubing  64 , the protruding male connector portion  98  of U-shaped spring clip  96  is depressed before inserting the inner type tubing  90  into the outer type tubing  88 . After the inner type tubing  90  is inserted into the outer type tubing  88  at these three connection points, protruding male connector portion  98  of spring clip  40  protrudes through the corresponding hole  100  in outer type tubing  88  to thereby provide a positive lock for these three tubing to tubing connection points. In one embodiment, the protruding male connector portion  98  of U-shaped spring clip  96  is depressed to release the positive lock at a given connection point between inner type tubing  90  and outer type tubing  88  to allow the given connected components to be separated.  
         [0051]    In an example embodiment illustrated in FIGS. 10 and 11, the three tripod legs  68  employ a similar attaching mechanism as described above for the tubing to tubing connections between top basket central tubing  56  and central support tube  50 , between central support tube  50  and bottom basket central tubing  62 , and between bottom basket central tubing  62  and tripod central tubing  64 . However, in the illustrated embodiment, the three tripod legs  68  are the same diameter size as the inner type tubing  90 , and therefore, additional inner type tubing  90  does not need to be fixedly attached into the tripod legs. Instead, the tripod legs  68  each have a hole  94  formed (e.g., by drilling) through a side wall in one location.  
         [0052]    A U-shaped spring clip  96  is inserted into the upper end section  70  of each tripod leg  68 , such that the protruding male connector portion  98  of spring clip  96  protrudes through the hole  94  formed in the upper end section  70  of tripod leg  68 . The protruding male connector portion  98  of the U-shaped spring clip  96  is depressed before inserting the smaller diameter tubing of upper end section  70  of tripod leg  68  into the outer type tubing  88  of tripod leg mount tubing  66 . A hole  100  is formed (e.g., by drilling) through a side wall of tripod leg mount tubings  66  at a first location. The protruding male connector portion  98  of U-shaped spring clip  96  protrudes through hole  100  in outer type tubing  88  of tripod leg mount tubing  66  to thereby provide a positive lock for the connection between tripod legs  68  and tripod leg mount tubings  66 .  
         [0053]    In one embodiment, the protruding male connector portion  98  of U-shaped spring clip  96  is depressed to release the positive lock at a given connection point between the smaller diameter tubing of tripod leg  68  and the outer type tubing  88  of tripod leg mount tubing  66  to allow the tripod legs  68  to be separated from the tripod leg mount tubing or to be rotated into the collapsed nested position illustrated in FIG. 11. In one embodiment illustrated in FIGS. 10 and 11, a second hole  101  substantially similar to hole  100  is formed (e.g., by drilling) through a side wall of tripod leg mount tubing  66  at a second location. In this embodiment, when the tripod legs  68  are rotated to the collapsed position two of the tripod legs  68  have there corresponding protruding male connector portion  98  of U-shaped spring clip  98  protrude through hole  101  in outer type tubing  88  of tripod leg mount tubing  66  and the other tripod leg  68  has its corresponding protruding male connector portion  98  of U-shaped spring clip  96  protrude through hole  100  in outer type tubing  88  of tripod leg mount tubing  66  to thereby provide a positive lock for the connection between tripod legs  68  and tripod leg mount tubings  66  in the collapsed nested position illustrated in FIG. 11.  
         [0054]    [0054]FIGS. 1, 2,  5 ,  10 , and  11  illustrate one embodiment having plugs or caps  102 , such as plastic or rubber plugs or caps, inserted into or over the top of top basket central tubing  56  and tripod leg mount tubings  66  so as to prevent water and dirt from entering the tubings. FIGS. 1, 2,  10 , and  11  illustrate one embodiment having plugs or caps  104 , such as plastic or rubber plugs or caps, inserted into or over the bottom of lower end section  72  of tripod legs  68  so as to prevent water and dirt from entering the tripod legs. The plugs or caps  104  inserted in tripod legs  68  can also prevent flooring from being scratched if entrapment device  30  is used indoors.  
         [0055]    For the tubing to tubing attachment points where the inner type tubing  90  is used, in one embodiment the inner type tubing  90  is plug welded, as indicated at  92 , into the top of the lower piece of tubing so as to minimize the possible entrance of water (e.g., from rain) into the inside of the tubings  56 ,  62 ,  50 , and  64 .  
         [0056]    In one embodiment, entrapment frame assembly  32  is primarily constructed with metal tubing and rod. Other embodiments of entrapment frame assemblies according to the present invention are fabricated with other suitable materials such as PVC, steel rod, tension wire, or a heavier gauge of metal.  
         [0057]    Other embodiments of construction details of alternate-material entrapment devices according to the present invention could include various means of attaching the legs to the base and attaching the other components to each other. For example, one embodiment of an entrapment frame assembly employs flanged tubing to construct the entrapment device.  
         [0058]    One embodiment of net  34  includes netting  76  treated with a green or black UV protectant. Another embodiment of net  34  includes netting  76  which is dyed using diluted latex paint or other suitable method.  
         [0059]    [0059]FIG. 14 illustrates one embodiment of a portion of entrapment device  30  with net  34 , top basket support  46  and bottom basket  48  collapsed into a portable form. In this embodiment top basket support  46  of entrapment device  30  is disconnectable from central support tube  50  and is connectable to bottom basket central tubing  62  of bottom basket support  48 . In one embodiment, as described above, each of the tubing tubing connections points utilizes outer type tubing  88  and inner type tubing  90  of smaller diameter than outer type tubing  88 . In this embodiment, top basket support  46  includes outer type tubing  88  to enable top basket central tubing  56  to be connected to the inner type tubing  90  fixably attached to bottom basket central tubing  62  in a similar connection mechanism as employed in the assembled entrapment frame assembly  32  to couple the top end of central support tube  250  to top basket central tubing  56  and to couple the bottom end of central support tube  50  to bottom basket central tubing  62  utilizing the U-shaped spring clip  96 . Top basket support  46  being coupled to bottom basket support  48  provides a benefit when transporting entrapment device  30 . Moreover, in the embodiment illustrated in FIG. 14, the collapsed tripod  44  illustrated in FIG. 11 and the removed central support tube  50  can be nested into bottom basket support  48 , which is also a benefit when transporting entrapment device  30 . Furthermore, flying discs can be stored in the nested bottom basket support  48 .  
         [0060]    One embodiment of a fixedly mounted 360 degree assembled entrapment device having a net employed as an entrapment apparatus is generally illustrated at  130  in FIG. 15. 360 degree entrapment device  130  is similar in operation and construction to the portable 360 degree assembled entrapment device  30  illustrated in FIG. 1. Entrapment device  130  includes an entrapment frame assembly  132  and a net  34  which together comprise an entrapment zone  36 , a basket section  38 , and a base section  140 . Entrapment zone  36  and basket section  38  are essentially the same as described above for portable entrapment device  30 . Entrapment frame assembly  132  of entrapment device  130 , however, includes a base section  140  which includes a straight pole section  141 . Straight pole section  141  is fixedly mounted in an upright position in ground  42 , such as with a concrete base  143  formed in ground  42 .  
         [0061]    Although specific embodiments have been illustrated and described herein for purposes of description of the preferred embodiment, it will be appreciated by those of ordinary skill in the art that a wide variety of alternate and/or equivalent implementations calculated to achieve the same purposes may be substituted for the specific embodiments shown and described without departing from the scope of the present invention. Those with skill in the chemical, mechanical, electromechanical, electrical, and computer arts will readily appreciate that the present invention may be implemented in a very wide, variety of embodiments. This application is intended to cover any adaptations or variations of the preferred embodiments discussed herein. Therefore, it is manifestly intended that this invention be limited only by the claims and the equivalents thereof.