US20060237575A1 - Portable volleyball net and supports - Google Patents
Portable volleyball net and supports Download PDFInfo
- Publication number
- US20060237575A1 US20060237575A1 US11/112,522 US11252205A US2006237575A1 US 20060237575 A1 US20060237575 A1 US 20060237575A1 US 11252205 A US11252205 A US 11252205A US 2006237575 A1 US2006237575 A1 US 2006237575A1
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- United States
- Prior art keywords
- support
- reel
- arm
- supports
- extension
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B61/00—Tennis nets or accessories for tennis or like games, e.g. volley-ball
- A63B61/02—Posts; Revolvably-mounted posts ; Straining or adjusting devices on the posts, e.g. coin- or time operated
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B61/00—Tennis nets or accessories for tennis or like games, e.g. volley-ball
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B71/00—Games or sports accessories not covered in groups A63B1/00 - A63B69/00
- A63B71/02—Games or sports accessories not covered in groups A63B1/00 - A63B69/00 for large-room or outdoor sporting games
- A63B71/023—Supports, e.g. poles
- A63B2071/024—Supports, e.g. poles with screws or pins in the earth
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2210/00—Space saving
- A63B2210/50—Size reducing arrangements for stowing or transport
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2243/00—Specific ball sports not provided for in A63B2102/00 - A63B2102/38
- A63B2243/0095—Volleyball
Definitions
- This invention is directed to portable erectable sports nets, in general, and portable erectable volley ball nets in particular.
- Volley ball nets typically consist of a net and two uprights driven into beach sand. The uprights are typically anchored by guys. Usually the volley ball net has four sides of cord with corner attachments secured to the uprights by loops, or hooks, etc. Sometimes a tensioning device is used, a reel or winch attached to the upper cross cord to tighten the top of the net and maintain it in relative position.
- the present invention provides a reel support, which has a reel parallel to the upper portion of the reel support.
- This reel has upper and lower attachment points to attach respectively the upper and lower edges of the net.
- An end support of equal height has similar attachment points for the same purpose at the same height.
- a ratchet arrangement cooperates with the reel so that the reel tightens without release during use.
- Anchors and associated guys are provided to hold the supports in upright position.
- the reel support conveniently has horizontal upper and lower support arms which support the reel between upper and lower pivots. Typically it is desired to adjust the height of the volley ball net.
- reel and end support both having a lower support with a spike or the like to penetrate the ground, sand or other substrate, and an upper reel and end support to bear the net.
- the lower supports are in practice identical.
- the upper and lower supports interlock, for example, by a ferrule or sleeve interlock of pin in socket or the like so that in sports use they remain locked in stable relationship.
- Extensions are provided, which can be inserted between upper and lower supports and which similarly interlock, so that the net height can be adjusted for men, women and juniors.
- a ratchet may be provided at the bottom of the reel which interacts with a cog on the lower support arm, the cog is controlled by a lever so that the cog can be disengaged from the ratchet and the reel can be unwound.
- the invention is directed to a portable support for a sports net.
- the support has a ground engaging base and a reel support member to extend upright from the base, and a reel parallel to the reel support member having paired upper and lower reel attachments for the sports net so the net can be attached to and wound on the reel.
- the support preferably comprises a second support having a second ground engaging base and a second support member to extend upright from said base and paired upper and lower member attachments for said sports net.
- the support additionally comprises a sports net.
- the reel support has upper and lower support arms.
- the upper support arm has an upper pivot to engage rotatably the reel and the lower support arm has a lower pivot to engage rotatably said reel.
- the reel has a lower sprocket wheel engaging a pawl on the lower support arm.
- the pawl comprises a cog mounted on a rotary shaft, which is upright in use and has a lever arm horizontal in use, and spring means acting on the lever arm, urging the cog into lockable contact with the sprocket.
- the spring extends from a movable holder pin mounted on the lever arm to a fixed holder pin mounted on the lower support arm.
- the shaft extends through the lower support arm, and the lever arm is below the lower support arm. The movable holder pin projects downward from the lever arm and the fixed holder pin projects downward from the lower support arm.
- the upper pivot comprises an upper reel socket mounted below the upper support arm rotatably engaging an upper reel stud mounted on the reel
- the lower pivot comprises a lower reel stud tube rotatably engaging an axial cylindrical aperture of the sprocket wheel.
- the invention is directed to a portable support system for sports net comprising a reel support to stand upright having a lower reel support to engage the ground and a upper reel support and a reel parallel to the upper reel support, the reel having paired upper and lower reel attachments for the sports net so the net can be attached to and wound on the reel.
- the upper reel support has upper and lower support arms.
- the upper support arm has an upper pivot to engage rotatably the reel, and the upper pivot comprises an upper reel socket mounted below the upper support arm rotatably engaging an upper reel stud mounted on the reel.
- the lower support arm has a lower pivot to engage rotatably the reel, and the lower pivot comprises a lower reel stud tube rotatably engaging an axial cylindrical aperture of a sprocket wheel axially mounted on the bottom of the reel and a pawl on the lower support arm engages the sprocket wheel.
- the pawl comprises a cog mounted on a rotary shaft, the rotary shaft is upright in use and has a lever arm horizontal in use, and a spring acts on the lever, urging the cog into lockable contact with the sprocket.
- the spring extends from a movable holder pin mounted on the lever arm to a fixed holder pin mounted on the lower support arm.
- the shaft extends through the lower support arm, and the lever arm is below the lower support arm, and the movable holder pin projects downward from the lever arm and the fixed holder pin projects downward from the lower support arm.
- the upper reel support has tiedown attachment means for guys to maintain the reel support upright.
- the lower reel support has a bottom ground pin, vertical in use, to penetrate the ground when upright, and a reel support base insert arm horizontal in use, to rest upon the ground and maintain the reel support upright.
- the system additionally comprises an end support to stand upright having a lower end support to engage the ground, and a upper end support having paired upper and lower attachments for the sports net.
- the upper end support has tiedown attachment means for guys to maintain the end support upright.
- the lower end support has a bottom ground pin, vertical in use, to penetrate the ground when upright, and an end support cross arm horizontal in use, to rest upon the ground and maintain the end support upright.
- the reel support and the end support comprise at least one cylindrical metal tube, and the reel and end support base insert arms are square metal tubes.
- the upper reel support arm is a continuous portion of the upper reel support bent horizontal through a right angle, and the lower support arm is a square horizontal tube projecting from adjacent the bottom of the upper reel support.
- the system additionally comprising a sports net.
- the reel support comprises separate upper and lower reel supports, and the upper reel support has a flared sleeve to matingly engage the top of the lower reel support, and the upper and lower reel supports comprise cylindrical metal tubes.
- the lower support arm is a square horizontal tube projecting from the flared bottom sleeve of the upper reel support.
- the end support comprises separate upper and lower end supports, and the upper end support has a flared sleeve to matingly engage the top of the lower end support, and the upper and lower end supports comprise cylindrical metal tubes.
- intermediate end support extension and the upper end support, has a flared sleeve to matingly engage the top of the intermediate end support extension
- intermediate end support extension has a flared sleeve to matingly engage the top of the lower end support
- the upper and lower end supports and intermediate end support extension comprise cylindrical metal tubes.
- the upper reel support has a flared sleeve to matingly engage the top of the upper intermediate reel support extension
- the upper intermediate reel support extension has a flared sleeve to matingly engage the top of the lower intermediate reel support extension
- the lower intermediate reel support extension has a flared sleeve to matingly engage the top of the lower reel support and the upper and lower reel supports and the upper and lower intermediate reel support extensions comprise cylindrical metal tubes.
- end support upper and lower intermediate end support extensions and the upper end support has a flared sleeve to matingly engage the top of the upper intermediate end support extension
- the upper intermediate end support extension has a flared sleeve to matingly engage the top of the lower intermediate end support extension
- the lower intermediate end support extension has a flared end to matingly engage the top of the lower end support
- the upper and lower end supports and upper and lower intermediate end support extension comprise cylindrical metal tubes.
- Both support and support system may additionally comprising one or more ground anchors for a guy rope for the support or support system.
- the anchor comprises paired parallel ground penetrating prongs attached at an acute angle to a triangular base adapted to rest on the ground.
- the prongs are connected to the base at two apices, a tiedown loop being attached at the third apex of the base.
- the prongs and the sides of the base adjacent the third apex are an integral rod having angular bends at the apices, the third side of the base forming a connecting member between the apices.
- FIG. 1 shows a front elevational view of an embodiment of the invention.
- FIG. 2 shows a front elevational view of an upper reel support arm of the embodiment of FIG. 1 .
- FIG. 3 shows a top plan view of a reel of the embodiment of FIG. 1 .
- FIG. 4 shows a front elevational view of a lower reel support arm of the embodiment of FIG. 1 .
- FIG. 5 shows a bottom plan view of a reel of the embodiment of FIG. 1 .
- FIG. 6 shows a front elevational view of a long support extension of the embodiment of FIG. 1 .
- FIG. 7 shows a front elevational view of a short support extension of the embodiment of FIG. 1 .
- FIG. 8 shows a top plan view of an support anchor of the embodiment of FIG. 1 .
- FIG. 9 shows a side elevational view of the support anchor of FIG. 8 .
- FIG. 10 shows an end elevational view of the support anchor of FIG. 8 .
- FIG. 11 shows a sectional view of an embodiment of flaring of the invention.
- Numeral 10 indicates the portable volley ball system including reel support 12 , end support 14 and net 16 , attached to end support 14 at one side and reel 18 , mounted on reel support 12 , at its other end.
- Reel support 12 has lower support leg 20 , of 14 gauge 11 ⁇ 2′′ o.d. tubing extending 3′1′′ or 3′11 ⁇ 2′′ upward, with base insert arm 22 , of 14 gauge 11 ⁇ 2′′ square tubing 6 or 61 ⁇ 4′′ long, with smooth ground end caps; symmetrical across leg 20 , and ground pin 24 , 91 ⁇ 2′′ long 5 ⁇ 8′′ diameter, which passes through and is welded to insert arm 22 , extending 8′′ into substrate 26 .
- Long support extension 28 is 14 gauge 11 ⁇ 2′′ o.d.
- long support extension 28 is short support extension 32 of 14 gauge 11 ⁇ 2′′ o.d. extending 10′′ or 111 ⁇ 2′′ including bottom flaring 34 of 14 gauge 13 ⁇ 4′′ o.d extending 4′′,to receive the top of short support extension 28 .
- upper reel support 36 of 14 gauge 11 ⁇ 2′′ o.d extending upward 3′11′′ or 3′101 ⁇ 2′′ including bottom flaring 38 , of 14 gauge 13 ⁇ 4′′ o.d extending 4′′, to receive the top of long extension 32 .
- Upper reel support is bent over at the top, with outer radius about 41 ⁇ 2′′ and inner radius about 2′′, to form upper reel support arm 40 likewise 14 gauge 11 ⁇ 2′′ o.d. with attached upper reel socket 42 , a 1′′ or 3 ⁇ 4′′, 7 ⁇ 8′′ i.d. pipe, welded to upper reel support arm 40 to fit loosely a 3 ⁇ 4′′ o.d. stud 56 .
- lower reel support arm 44 of 11 ⁇ 2′′ square tubing projects about 6′′ from bottom flaring 38 and has lower reel stub tube 46 , a 11 ⁇ 4′′, 11 ⁇ 4′′ o.d. tubing to fit loosely a 1 5/16′′ i.d. sprocket 58 .
- Lower reel stud tube 46 is aligned with upper reel socket 42 .
- Reel 18 has drum 48 , 16 gauge 31 ⁇ 2′′ diameter, 3′31 ⁇ 2′′ or 3′41 ⁇ 2′′ tall, with upper circular tubing 50 and lower circular tubing 52 , both 5′′ or 41 ⁇ 4′′ radius of 3 ⁇ 4′′ diameter 16 gauge tubing, and upper and lower tie down loops 54 , which are 1 ⁇ 2′′ by 1 ⁇ 2′′ or 5 ⁇ 8′′ by 5 ⁇ 8′′ of 1 ⁇ 4′′ diameter bent solid rods for net 16 , there are also optional but preferred equispaced mid reel tie down loops 55 , which are preferably 21 ⁇ 2′′ tall, project 5 ⁇ 8′′ and are 1 ⁇ 4′′ diameter bent solid rods. Tie down loop dimensions are preferred, and considerable variation is possible.
- Upper reel stud 56 (not shown FIG. 1 ) engages upper reel socket 42
- lower stub tube 46 engages ratchet sprocket 58 which is part of ratchet system 60 (not shown in detail in FIG. 1 ).
- Upper reel support 36 has U-shaped tie down loop 62 , 1′′ or 11 ⁇ 4′′ across, projecting 11 ⁇ 2′′ or 13 ⁇ 8′′ of 1 ⁇ 4′′ diameter rod, connected by tie down (guy) ropes 64 to support anchors 66 , while only one rope 64 and one support anchor 66 are shown, two are required to hold reel support 12 in position.
- End support 14 has lower support leg 68 , of 14 gauge 11 ⁇ 2′′ o.d.
- Long support extension 74 is 14 gauge 11 ⁇ 2′′ o.d. extending 1′4′′ or 1′21 ⁇ 2′′ including bottom flaring 76 of 14 gauge 13 ⁇ 4′′ o.d extending 4′′, to receive the top of support leg 20 .
- Above long support extension 74 is short support extension 78 of 14 gauge 11 ⁇ 2′′ o.d.
- short support extension 78 extending 10′′ or 111 ⁇ 2′′ including bottom flaring 80 of 14 gauge 13 ⁇ 4′′ o.d extending 4′′,to receive the top of short support extension 74 .
- upper end support 82 14 gauge 11 ⁇ 2′′ o.d extending upward 3′73 ⁇ 4′′ including bottom flaring 84 , of 14 gauge 13 ⁇ 4′′ o.d extending 4′′, to receive the top of short extension 78 .
- Upper end support 82 has top and bottom tie down loops 86 for net 16 , and tie down loop 88 for (guy) ropes (not shown), all three loops are U-shaped 1 ⁇ 4′′ rods, 1′′ or 11 ⁇ 4′′ across and projecting 11 ⁇ 2′′ or 13 ⁇ 8′′, tie down loop 88 is bent downward, two such tie down ropes with two support anchors are required to hold end support 14 in position.
- There are also optional but preferred equispaced mid end support tie down loops 89 which are preferably 21 ⁇ 8′′ tall, project 5 ⁇ 8′′ and are 1 ⁇ 4′′ diameter bent solid rods. Tie down loop dimensions are preferred, and considerable variation is possible.
- Upper end support 82 has optional plug 87 , preferably of suitable rubber or plastic, to seal its upper end.
- FIG. 2 shows in more detail upper reel support arm 40 , where upper reel stud 56 , 14 gauge, 11 ⁇ 4′′, 3 ⁇ 4′′ o.d. tube, or 5 ⁇ 8′′, 3 ⁇ 4′′ o.d. rod rotatably engages upper reel socket 42 .
- Plug 90 preferably of suitable rubber or plastic, seals end of upper support arm 40 .
- FIG. 3 shows the top of reel 18 , with circular tubing 50 connected by welded radial spokes 92 , 94 , 95 and 96 , all 14 gauge, 1′′ wide 1 ⁇ 2′′ deep tubing to drum 48 , upper reel stud 56 , shown hollow, is welded to upper reel drum end plate 97 , 31 ⁇ 2′′ diameter, 16 gauge, alternatively in absence of end plate 97 , stud 56 may be welded to a diametric spoke.
- FIG. 4 shows lower reel support arm 44 , which projects 6′′ from bottom flaring 38 , and is 11 ⁇ 2′′ square section of 14 gauge has lower reel stub tube 46 , on its upper surface, which rotatably engages ratchet sprocket 58 , 1 5/16′′ i.d.
- ratchet sprocket 58 has lower toothed portion 98 , 1 ⁇ 2′′ high, with 2′′ core diameter, and 1 ⁇ 4′′ teeth spaced at 18° and upper shoulder portion 100 , 1 ⁇ 4′′ high which is attached to reel 18 , optional but preferred stop plate 101 , 11 ⁇ 2′′ diameter, 1 ⁇ 8′′ thick, is welded to shoulder 100 by a continuous weld.
- Ratchet system 60 also includes cog 102 , 1 ⁇ 4′′ square 11 ⁇ 2′′ long, cog 102 , may be 1 ⁇ 4′′ across by 1 ⁇ 2′′ deep, with bevelled end to engage ratchet sprocket 58 , welded to shaft 104 , 1 ⁇ 2′′ diameter 3′′ deep, which passes through lower support arm 44 , welded upper washer 104 , 1′′ or 11 ⁇ 2′′ o.d., 1 ⁇ 2′′ i.d., and optional but preferred welded lower washer 105 , 1′′ or 11 ⁇ 2′′ o.d., 1 ⁇ 2′′ i.d., keeps shaft 104 in position, and allows free rotation of shaft 104 and cog 102 .
- Shaft 104 has arm 108 , 1 ⁇ 4′′ rod, 23 ⁇ 4′′ long with end handle 109 extending 7 ⁇ 8′′ or 11 ⁇ 2′′ down, with optional but preferred handle knob 111 , which has arm holder pin 110 , about 11 ⁇ 4′′ from shaft axis, attached spring 112 at one end, the other is attached to support arm holder pin 114 , attached to underside arm 44 about 2′′ or 21 ⁇ 4′′ outward of axis of shaft 104 .
- Spring 112 urges cog 102 into ratchet sprocket 58 , retaining reel 18 in position.
- Ratchet cover 45 18 gauge, 11 ⁇ 2′′ deep, 13 ⁇ 4′′ across, 45 ⁇ 8′′ long, shown in ghost is U shaped with tack welded end cap 47 , and screw holes 49 for attachment to lower support arm 44 , and protects ratchet arm 108 and handle 109 , spring 112 and spring holder pins 110 and 114 during play.
- FIGS. 6 and 7 show long and short support extensions.
- Long support extension 32 identical to long extension support 78 , has bottom flare 34 and top plug 122 , preferably of suitable rubber or plastic.
- Short support extension 28 identical to short extension support 78 , has bottom flare 30 and top plug 124 , preferably of suitable rubber or plastic.
- FIGS. 8, 9 and 10 show support anchor 66 , this has two paired parallel prongs 126 and 128 , 1′ long and 61 ⁇ 2′′ (preferred) or 81 ⁇ 2′′ apart, with pointed tips 130 and 132 respectively, these are joined at their base by integral rods 134 and 136 , each about 41 ⁇ 4′′ long, forming two sides of a triangle in a plane at 45° to that of the prongs, integral rods 134 and 136 are at an angle of 108°, rods and prongs are 1 ⁇ 2′′ rods.
- Rods 134 and 136 joins rods 134 and 136 at their base, forming a third side of the triangle.
- tie down 140 consisting of U loop 142 , 1 ⁇ 4′′ rod, 11 ⁇ 4′′ across at base and 7 ⁇ 8′′ (preferred) or 13 ⁇ 8′′ deep, effectively at right angles to prongs 126 and 128 , and integral arms 146 and 148 , 13 ⁇ 8′′ long.
- arms 146 and 148 each form an angle of 144° with U loop 142 , as viewed in FIG. 10 , they each form an angle of 105° with U loop 142 .
- Tie down 140 is spot welded to rods 134 and 136 adjacent apex 135 .
- Optional but preferred pin holes 150 in prongs 126 and 128 are provided so that hollow extension pipes slid over prongs 126 and 128 , can be secured by pins or other fastening means passing through pinholes 150 .
- the extended prongs are for use in loose soils, such as but not limited to sand.
- bottom flaring 30 is a 41 ⁇ 2′′ long 13 ⁇ 4′′ o.d. tube, overlapping tube 28 , a 11 ⁇ 2′′ o.d, tube by 1 ⁇ 2′′ and joined by continuous weld 152 machined smooth.
- sprocket 58 is described as ratchet sprocket 58 , because it functions as a ratchet.
- a ratchet of similar dimensions could be substituted for sprocket 58 without affecting its function, although strictly sprockets and ratchets are distinct.
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Abstract
A portable erectable support for volley balls nets has two net supporting uprights. The net is attached to a ratchet engaging reel on one support, which can be hand wound to tighten the net, and directly to the other. The supports have separable interlocking upper net holding supports and lower ground engaging supports. The height is adjustable by removable interlocking extensions between upper and lower supports so men, women and juniors may use the net. There are net tie down loops on the reel itself and the other upper support. There are also guy rope tie down loops on both upper supports. Guy rope anchors have ground penetrating prongs and a ground resting base with a guy rope tie down loop.
Description
- This invention is directed to portable erectable sports nets, in general, and portable erectable volley ball nets in particular.
- Volley ball nets typically consist of a net and two uprights driven into beach sand. The uprights are typically anchored by guys. Usually the volley ball net has four sides of cord with corner attachments secured to the uprights by loops, or hooks, etc. Sometimes a tensioning device is used, a reel or winch attached to the upper cross cord to tighten the top of the net and maintain it in relative position.
- Applicant is aware of no specific prior art relating to instant invention.
- The present invention provides a reel support, which has a reel parallel to the upper portion of the reel support. This reel has upper and lower attachment points to attach respectively the upper and lower edges of the net. An end support of equal height, has similar attachment points for the same purpose at the same height. In use the net is attached to the attachment points, the reel is then rotated to tighten the net, and the reel is locked in position. Conveniently a ratchet arrangement cooperates with the reel so that the reel tightens without release during use. Anchors and associated guys are provided to hold the supports in upright position. The reel support conveniently has horizontal upper and lower support arms which support the reel between upper and lower pivots. Typically it is desired to adjust the height of the volley ball net. This is done by reel and end support both having a lower support with a spike or the like to penetrate the ground, sand or other substrate, and an upper reel and end support to bear the net. The lower supports are in practice identical. The upper and lower supports interlock, for example, by a ferrule or sleeve interlock of pin in socket or the like so that in sports use they remain locked in stable relationship. Extensions are provided, which can be inserted between upper and lower supports and which similarly interlock, so that the net height can be adjusted for men, women and juniors. A ratchet may be provided at the bottom of the reel which interacts with a cog on the lower support arm, the cog is controlled by a lever so that the cog can be disengaged from the ratchet and the reel can be unwound.
- Although the invention is described and referred to specifically as it relates to supports for volley ball nets comprising a reel, it will be understood that the principles of this invention are equally applicable to similar devices, and structures for supporting sports nets, and accordingly, it will be understood that the invention is not limited to such devices, and structures, for supporting sports nets.
- It is a principal object of the invention to provide a portable support for sports nets having a reel to which the net can be attached, tightened and wound. It is a subsidiary object of the invention to provide support arms bearing pivots for the reel on a support upright. It is a further subsidiary object to provide a pawl and ratchet sprocket operatively associated with the reel on one support arm, whereby the reel may be hand wound tightening the net. It is a subsidiary object of the invention to provide an end support for the other end of the net. It is a further subsidiary object of the invention to provided ground penetrating pins at the base of both supports. It is a further subsidiary object to provide tie downs loops for guy ropes on both supports. It is a further subsidiary object to provide net tie down loops for the net on the reel and the end support. It is a further object of the invention to provide interlocking upper and lower upright reel and end supports. It is further subsidiary object of the invention to provide at least one removable interlocking intermediate extension between the upper and lower upright reel and end supports. It is a further object of the invention to provide ground anchors for guy ropes with paired angled ground penetrating prongs attached to a ground resting base having a guy rope tie down loop.
- In one broad aspect the invention is directed to a portable support for a sports net. The support has a ground engaging base and a reel support member to extend upright from the base, and a reel parallel to the reel support member having paired upper and lower reel attachments for the sports net so the net can be attached to and wound on the reel. The support preferably comprises a second support having a second ground engaging base and a second support member to extend upright from said base and paired upper and lower member attachments for said sports net. Preferably the support additionally comprises a sports net. Preferably the reel support has upper and lower support arms. The upper support arm has an upper pivot to engage rotatably the reel and the lower support arm has a lower pivot to engage rotatably said reel. Preferably the reel has a lower sprocket wheel engaging a pawl on the lower support arm. Preferably the pawl comprises a cog mounted on a rotary shaft, which is upright in use and has a lever arm horizontal in use, and spring means acting on the lever arm, urging the cog into lockable contact with the sprocket. Preferably the spring extends from a movable holder pin mounted on the lever arm to a fixed holder pin mounted on the lower support arm. Preferably the shaft extends through the lower support arm, and the lever arm is below the lower support arm. The movable holder pin projects downward from the lever arm and the fixed holder pin projects downward from the lower support arm. Preferably the upper pivot, comprises an upper reel socket mounted below the upper support arm rotatably engaging an upper reel stud mounted on the reel, and the lower pivot comprises a lower reel stud tube rotatably engaging an axial cylindrical aperture of the sprocket wheel.
- In another broad aspect the invention is directed to a portable support system for sports net comprising a reel support to stand upright having a lower reel support to engage the ground and a upper reel support and a reel parallel to the upper reel support, the reel having paired upper and lower reel attachments for the sports net so the net can be attached to and wound on the reel. The upper reel support has upper and lower support arms. The upper support arm has an upper pivot to engage rotatably the reel, and the upper pivot comprises an upper reel socket mounted below the upper support arm rotatably engaging an upper reel stud mounted on the reel. The lower support arm has a lower pivot to engage rotatably the reel, and the lower pivot comprises a lower reel stud tube rotatably engaging an axial cylindrical aperture of a sprocket wheel axially mounted on the bottom of the reel and a pawl on the lower support arm engages the sprocket wheel. The pawl comprises a cog mounted on a rotary shaft, the rotary shaft is upright in use and has a lever arm horizontal in use, and a spring acts on the lever, urging the cog into lockable contact with the sprocket. The spring extends from a movable holder pin mounted on the lever arm to a fixed holder pin mounted on the lower support arm. The shaft extends through the lower support arm, and the lever arm is below the lower support arm, and the movable holder pin projects downward from the lever arm and the fixed holder pin projects downward from the lower support arm. The upper reel support has tiedown attachment means for guys to maintain the reel support upright. The lower reel support has a bottom ground pin, vertical in use, to penetrate the ground when upright, and a reel support base insert arm horizontal in use, to rest upon the ground and maintain the reel support upright. Preferably the system additionally comprises an end support to stand upright having a lower end support to engage the ground, and a upper end support having paired upper and lower attachments for the sports net. The upper end support has tiedown attachment means for guys to maintain the end support upright. The lower end support has a bottom ground pin, vertical in use, to penetrate the ground when upright, and an end support cross arm horizontal in use, to rest upon the ground and maintain the end support upright. Preferably the reel support and the end support comprise at least one cylindrical metal tube, and the reel and end support base insert arms are square metal tubes. Preferably the upper reel support arm is a continuous portion of the upper reel support bent horizontal through a right angle, and the lower support arm is a square horizontal tube projecting from adjacent the bottom of the upper reel support. Preferably the system additionally comprising a sports net. Preferably the reel support comprises separate upper and lower reel supports, and the upper reel support has a flared sleeve to matingly engage the top of the lower reel support, and the upper and lower reel supports comprise cylindrical metal tubes. Preferably the lower support arm is a square horizontal tube projecting from the flared bottom sleeve of the upper reel support. Preferably the end support comprises separate upper and lower end supports, and the upper end support has a flared sleeve to matingly engage the top of the lower end support, and the upper and lower end supports comprise cylindrical metal tubes. There may be an intermediate reel support extension, and the upper reel support has a flared sleeve to matingly engage the top of the intermediate reel support extension, and the intermediate reel support extension has a flared sleeve to matingly engage the top of the lower reel support and the upper and lower reel supports and intermediate reel support extension comprise cylindrical metal tubes. Similarly there may be an intermediate end support extension and the upper end support, has a flared sleeve to matingly engage the top of the intermediate end support extension, and the intermediate end support extension has a flared sleeve to matingly engage the top of the lower end support, and the upper and lower end supports and intermediate end support extension comprise cylindrical metal tubes. There may be upper and lower intermediate reel support extensions, and the upper reel support has a flared sleeve to matingly engage the top of the upper intermediate reel support extension, and the upper intermediate reel support extension has a flared sleeve to matingly engage the top of the lower intermediate reel support extension and the lower intermediate reel support extension has a flared sleeve to matingly engage the top of the lower reel support and the upper and lower reel supports and the upper and lower intermediate reel support extensions comprise cylindrical metal tubes. Similarly the end support upper and lower intermediate end support extensions and the upper end support has a flared sleeve to matingly engage the top of the upper intermediate end support extension, and the upper intermediate end support extension has a flared sleeve to matingly engage the top of the lower intermediate end support extension, and the lower intermediate end support extension has a flared end to matingly engage the top of the lower end support, and the upper and lower end supports and upper and lower intermediate end support extension comprise cylindrical metal tubes.
- Both support and support system may additionally comprising one or more ground anchors for a guy rope for the support or support system. The anchor comprises paired parallel ground penetrating prongs attached at an acute angle to a triangular base adapted to rest on the ground. The prongs are connected to the base at two apices, a tiedown loop being attached at the third apex of the base. The prongs and the sides of the base adjacent the third apex are an integral rod having angular bends at the apices, the third side of the base forming a connecting member between the apices.
-
FIG. 1 shows a front elevational view of an embodiment of the invention. -
FIG. 2 shows a front elevational view of an upper reel support arm of the embodiment ofFIG. 1 . -
FIG. 3 shows a top plan view of a reel of the embodiment ofFIG. 1 . -
FIG. 4 shows a front elevational view of a lower reel support arm of the embodiment ofFIG. 1 . -
FIG. 5 shows a bottom plan view of a reel of the embodiment ofFIG. 1 . -
FIG. 6 shows a front elevational view of a long support extension of the embodiment ofFIG. 1 . -
FIG. 7 shows a front elevational view of a short support extension of the embodiment ofFIG. 1 . -
FIG. 8 shows a top plan view of an support anchor of the embodiment ofFIG. 1 . -
FIG. 9 shows a side elevational view of the support anchor ofFIG. 8 . -
FIG. 10 shows an end elevational view of the support anchor ofFIG. 8 . -
FIG. 11 shows a sectional view of an embodiment of flaring of the invention. -
Numeral 10 indicates the portable volley ball system including reel support 12,end support 14 and net 16, attached to endsupport 14 at one side and reel 18, mounted on reel support 12, at its other end. Reel support 12, haslower support leg 20, of 14 gauge 1½″ o.d. tubing extending 3′1″ or 3′1½″ upward, withbase insert arm 22, of 14 gauge 1½″ square tubing 6 or 6¼″ long, with smooth ground end caps; symmetrical acrossleg 20, andground pin 24, 9½″ long ⅝″ diameter, which passes through and is welded to insertarm 22, extending 8″ intosubstrate 26.Long support extension 28 is 14 gauge 1½″ o.d. extending 1′4″ or 1′2½″ including bottom flaring 30 of 14 gauge 1¾″ o.d extending 4″, to receive the top ofsupport leg 20. Abovelong support extension 28 isshort support extension 32 of 14 gauge 1½″ o.d. extending 10″ or 11½″ including bottom flaring 34 of 14 gauge 1¾″ o.d extending 4″,to receive the top ofshort support extension 28. Abovelong support extension 32 isupper reel support 36 of 14 gauge 1½″ o.d extending upward 3′11″ or 3′10½″ including bottom flaring 38, of 14 gauge 1¾″ o.d extending 4″, to receive the top oflong extension 32. Upper reel support is bent over at the top, with outer radius about 4½″ and inner radius about 2″, to form upperreel support arm 40 likewise 14 gauge 1½″ o.d. with attachedupper reel socket 42, a 1″ or ¾″, ⅞″ i.d. pipe, welded to upperreel support arm 40 to fit loosely a ¾″ o.d.stud 56. As shown lowerreel support arm 44 of 1½″ square tubing projects about 6″ from bottom flaring 38 and has lowerreel stub tube 46, a 1¼″, 1¼″ o.d. tubing to fit loosely a 1 5/16″ i.d.sprocket 58. Lowerreel stud tube 46 is aligned withupper reel socket 42.Reel 18 hasdrum circular tubing 50 and lowercircular tubing 52, both 5″ or 4¼″ radius of ¾″diameter 16 gauge tubing, and upper and lower tie downloops 54, which are ½″ by ½″ or ⅝″ by ⅝″ of ¼″ diameter bent solid rods fornet 16, there are also optional but preferred equispaced mid reel tie downloops 55, which are preferably 2½″ tall, project ⅝″ and are ¼″ diameter bent solid rods. Tie down loop dimensions are preferred, and considerable variation is possible. Upper reel stud 56 (not shownFIG. 1 ) engagesupper reel socket 42, whilelower stub tube 46 engagesratchet sprocket 58 which is part of ratchet system 60 (not shown in detail inFIG. 1 ).Upper reel support 36 has U-shaped tie downloop 62, 1″ or 1¼″ across, projecting 1½″ or 1⅜″ of ¼″ diameter rod, connected by tie down (guy)ropes 64 to supportanchors 66, while only onerope 64 and onesupport anchor 66 are shown, two are required to hold reel support 12 in position.End support 14, haslower support leg 68, of 14 gauge 1½″ o.d. tubing extending 3′1″ or 3′1½″, withbase insert arm 70, of 14 gauge 1½″ square tubing 6″ or 6¼″ long, with smooth ground end caps, symmetrical acrossleg 68, andground pin 72, 9½″ long, ⅝″ diameter, which passes through and is welded to insertarm 70, extending 8″ intosubstrate 26.Long support extension 74 is 14 gauge 1½″ o.d. extending 1′4″ or 1′2½″ including bottom flaring 76 of 14 gauge 1¾″ o.d extending 4″, to receive the top ofsupport leg 20. Abovelong support extension 74 isshort support extension 78 of 14 gauge 1½″ o.d. extending 10″ or 11½″ including bottom flaring 80 of 14 gauge 1¾″ o.d extending 4″,to receive the top ofshort support extension 74. Aboveshort support extension 78 isupper end support short extension 78.Upper end support 82 has top and bottom tie downloops 86 fornet 16, and tie downloop 88 for (guy) ropes (not shown), all three loops are U-shaped ¼″ rods, 1″ or 1¼″ across and projecting 1½″ or 1⅜″, tie downloop 88 is bent downward, two such tie down ropes with two support anchors are required to holdend support 14 in position. There are also optional but preferred equispaced mid end support tie downloops 89, which are preferably 2⅛″ tall, project ⅝″ and are ¼″ diameter bent solid rods. Tie down loop dimensions are preferred, and considerable variation is possible.Upper end support 82 hasoptional plug 87, preferably of suitable rubber or plastic, to seal its upper end.FIG. 2 shows in more detail upperreel support arm 40, whereupper reel stud upper reel socket 42.Plug 90, preferably of suitable rubber or plastic, seals end ofupper support arm 40.FIG. 3 shows the top ofreel 18, withcircular tubing 50 connected by weldedradial spokes upper reel stud 56, shown hollow, is welded to upper reeldrum end plate 97, 3½″ diameter, 16 gauge, alternatively in absence ofend plate 97,stud 56 may be welded to a diametric spoke.FIG. 4 shows lowerreel support arm 44, which projects 6″ from bottom flaring 38, and is 1½″ square section of 14 gauge has lowerreel stub tube 46, on its upper surface, which rotatably engagesratchet sprocket 58, 1 5/16″ i.d. shown in ghost, ratchetsprocket 58 has lowertoothed portion 98, ½″ high, with 2″ core diameter, and ¼″ teeth spaced at 18° andupper shoulder portion 100, ¼″ high which is attached to reel 18, optional butpreferred stop plate 101, 1½″ diameter, ⅛″ thick, is welded toshoulder 100 by a continuous weld.Ratchet system 60, also includescog 102, ¼″ square 1½″ long,cog 102, may be ¼″ across by ½″ deep, with bevelled end to engageratchet sprocket 58, welded toshaft 104, ½″ diameter 3″ deep, which passes throughlower support arm 44, weldedupper washer 104, 1″ or 1½″ o.d., ½″ i.d., and optional but preferred weldedlower washer 105, 1″ or 1½″ o.d., ½″ i.d., keepsshaft 104 in position, and allows free rotation ofshaft 104 andcog 102.Shaft 104 has arm 108, ¼″ rod, 2¾″ long with end handle 109 extending ⅞″ or 1½″ down, with optional but preferred handle knob 111, which hasarm holder pin 110, about 1¼″ from shaft axis, attachedspring 112 at one end, the other is attached to supportarm holder pin 114, attached tounderside arm 44 about 2″ or 2¼″ outward of axis ofshaft 104.Spring 112 urgescog 102 intoratchet sprocket 58, retainingreel 18 in position.Ratchet cover end cap 47, and screwholes 49 for attachment to lowersupport arm 44, and protects ratchet arm 108 and handle 109,spring 112 and spring holder pins 110 and 114 during play. An alternative arrangement is possible withshaft 104 outward ofsprocket 58, in whichcase sprocket 58 is in the same position relative toupper reel support 36 and flaring 38,cog 102 is reversed to engage the outside ofsprocket 58, but otherwiseshaft 104,pin 114, cover 45 are in the same relative position toshaft 104, this arrangement projects beyondsprocket 58, andlower support arm 44 extends some 11″ frombottom flaring 38.FIG. 5 shows the bottom ofreel 18, withcircular tubing 52, connected by welded radial spokesradial spokes ratchet sprocket 58, lowertoothed portion 98 shown is welded to lower reel end plate 121, 3½″ 16 gauge, alternatively in absence of end plate 121,sprocket 58 may be welded to a diametric spoke.FIGS. 6 and 7 show long and short support extensions.Long support extension 32, identical tolong extension support 78, hasbottom flare 34 andtop plug 122, preferably of suitable rubber or plastic.Short support extension 28, identical toshort extension support 78, hasbottom flare 30 andtop plug 124, preferably of suitable rubber or plastic.FIGS. 8, 9 and 10show support anchor 66, this has two pairedparallel prongs pointed tips integral rods 134 and 136, each about 4¼″ long, forming two sides of a triangle in a plane at 45° to that of the prongs,integral rods 134 and 136 are at an angle of 108°, rods and prongs are ½″ rods. Reinforcing ⅝″ pipe ortube 138 joinsrods 134 and 136 at their base, forming a third side of the triangle. Atapex 135 ofrods 134 and 136, is tie down 140, consisting ofU loop 142, ¼″ rod, 1¼″ across at base and ⅞″ (preferred) or 1⅜″ deep, effectively at right angles toprongs integral arms FIG. 8 ,arms U loop 142, as viewed inFIG. 10 , they each form an angle of 105° withU loop 142. Tie down 140 is spot welded torods 134 and 136adjacent apex 135. Optional but preferred pin holes 150 inprongs prongs pinholes 150. The extended prongs are for use in loose soils, such as but not limited to sand. - In the above descriptions alternative measurements are sometimes given. In general, only one set of sizes will be used throughout a volley ball support structure, the supports and long and short extensions will be the same size as other supports and extensions. Many of the given measurements are indicative rather than mandatorily exact.
- An alternative flaring structure is shown in
FIG. 11 , where for example bottom flaring 30 is a 4½″ long 1¾″ o.d. tube, overlappingtube 28, a 1½″ o.d, tube by ½″ and joined bycontinuous weld 152 machined smooth. - In the
above description sprocket 58 is described asratchet sprocket 58, because it functions as a ratchet. A ratchet of similar dimensions could be substituted forsprocket 58 without affecting its function, although strictly sprockets and ratchets are distinct. - As those skilled in the art would realize these preferred described details and materials and components can be subjected to substantial variation, modification, change, alteration, and substitution without affecting or modifying the function of the described embodiments.
- Although embodiments of the invention have been described above, it is not limited thereto, and it will be apparent to persons skilled in the art that numerous modifications and variations form part of the present invention insofar as they do not depart from the spirit, nature and scope of the claimed and described invention.
Claims (20)
1. Portable support for sports net comprising a support having a ground engaging base and a reel support member to extend upright from said base, and a reel parallel to said reel support member having paired upper and lower reel attachments for said sports net so said net can be attached to and wound on said reel.
2. Support of claim 1 , additionally comprising a second support having a ground engaging base and a support member to extend upright from said base and paired upper and lower attachments for said sports net.
3. Support of claim 2 additionally comprising a sports net.
4. Support of claim 2 wherein said first reel support member has upper and lower support arms, said upper support arm having an upper pivot to engage rotatably said reel and said lower support arm having a lower pivot to engage rotatably said reel.
5. Support of claim 4 , wherein said reel has a lower sprocket wheel engaging a pawl on said lower support arm.
6. Support of claim 5 , wherein said pawl comprises a cog mounted on a rotary shaft, said rotary shaft being upright in use and having a lever arm horizontal in use, and spring means acting on said lever arm, urging said cog into lockable contact with said sprocket.
7. Support of claim 6 , wherein said spring extends from a movable holder pin mounted on said lever arm to a fixed holder pin mounted on said lower support arm.
8. Support of claim 7 , wherein said shaft extends through said lower support arm, and said lever arm is below said lower support arm, and said movable holder pin projects downward from said lever arm and said fixed holder pin projects downward from said lower support arm.
9. Support of claim 5 , wherein said upper pivot comprises an upper reel socket mounted below said upper support arm rotatably engaging an upper reel stud mounted on said reel, and said lower pivot comprises a lower reel stud tube rotatably engaging an axial cylindrical aperture of said sprocket wheel.
10. Support of claim 9 , wherein said pawl comprises a cog mounted on a rotary shaft, said rotary shaft being upright in use and having a lever arm horizontal in use, and spring means acting on said lever arm, urging said cog into lockable contact with said sprocket.
11. Support of claim 10 , wherein said spring extends from a movable holder pin mounted on said lever arm to a fixed holder pin mounted on said lower support arm.
12. Support of claim 11 , wherein said shaft extends through said lower support arm, and said lever arm is below said lower support arm, and said movable holder pin projects downward from said lever arm and said fixed holder pin projects downward from said lower support arm.
13. Portable support system for sports net comprising a reel support to stand upright having a lower reel support to engage the ground and a upper reel support and a reel parallel to said upper reel support, said reel having paired upper and lower reel attachments for said sports net so said net can be attached to and wound on said reel, and
said upper reel support has upper and lower support arms, said upper support arm having an upper pivot to engage rotatably said reel, and said upper pivot comprises an upper reel socket mounted below said upper support arm rotatably engaging an upper reel stud mounted on said reel,
said lower support arm having a lower pivot to engage rotatably said reel, and said lower pivot comprises a lower reel stud tube rotatably engaging an axial cylindrical aperture of a sprocket wheel axially mounted on the bottom of said reel and a pawl on said lower support arm engages said sprocket wheel, and
said pawl comprises a cog mounted on a rotary shaft, said rotary shaft being upright in use and having a lever arm horizontal in use, and a spring acts on said lever, urging said cog into lockable contact with said sprocket and
said spring extends from a movable holder pin mounted on said lever arm to a fixed holder pin mounted on said lower support arm and
said shaft extends through said lower support arm, and said lever arm is below said lower support arm, and said movable holder pin projects downward from said lever arm and said fixed holder pin projects downward from said lower support arm and
said upper reel support has tiedown attachment means for guys to maintain said reel support upright
and said lower reel support has a bottom ground pin, vertical in use, to penetrate the ground when upright, and a reel support base insert arm horizontal in use, to rest upon the ground and maintain said reel support upright.
14. System of claim 13 , additionally comprising an end support to stand upright having a lower end support to engage the ground, and an upper end support having paired upper and lower member attachments for said sports net and
said upper end support has tiedown attachment means for guys to maintain said end support upright and
said lower end support has a bottom ground pin, vertical in use, to penetrate the ground when upright, and an end support cross arm horizontal in use, to rest upon the ground and maintain said end support upright.
15. System of claim 14 , wherein said reel support and said end support comprise at least one cylindrical metal tube and
said reel and end support base insert arms are square metal tubes,
said upper reel support arm is a continuous portion of said upper reel support bent horizontal through a right angle, and said lower support arm is a square horizontal tube projecting from adjacent the bottom of said upper reel support.
16. System of claim 14 additionally comprising a sports net.
17. System of claim 15 , wherein said reel support comprises separate upper and lower reel supports, and said upper reel support has a flared sleeve to matingly engage the top of said lower reel support, and said upper and lower reel supports comprise cylindrical metal tubes, and
said lower support arm is a square horizontal tube projecting from said flared bottom sleeve of said upper reel support and
said end support comprises separate upper and lower end supports, and said upper end support has a flared sleeve to matingly engage the top of said lower end support, and said upper and lower end supports comprise cylindrical metal tubes.
18. System of claim 15 , wherein said reel support comprises separate upper and lower reel supports and an intermediate reel support extension, and said upper reel support has a flared sleeve to matingly engage the top of said intermediate reel support extension, and said intermediate reel support extension has a flared sleeve to matingly engage the top of said lower reel support and said upper and lower reel supports and intermediate reel support extension comprise cylindrical metal tubes, and
said lower support arm is a square horizontal tube projecting from said flared bottom sleeve of said upper reel support and
said end support comprises separate upper and lower end supports and an intermediate end support extension and said upper end support has a flared sleeve to matingly engage the top of said intermediate end support extension, and said intermediate end support extension has a flared sleeve to matingly engage the top of said lower end support, and said upper and lower end supports and intermediate end support extension comprise cylindrical metal tubes.
19. System of claim 15 , wherein said reel support comprises separate upper and lower reel supports and upper and lower intermediate reel support extensions, and said upper reel support has a flared sleeve to matingly engage the top of said upper intermediate reel support extension, and said upper intermediate reel support extension has a flared sleeve to matingly engage the top of said lower intermediate reel support extension and said lower intermediate reel support extension has a flared sleeve to matingly engage the top of said lower reel support and said upper and lower reel supports and said upper and lower intermediate reel support extensions comprise cylindrical metal tubes, and
said lower support arm is a square horizontal tube projecting from said flared bottom sleeve of said upper reel support and
said end support comprises separate upper and lower end supports and upper and lower intermediate end support extensions and said upper end support has a flared sleeve to matingly engage the top of said upper intermediate end support extension, and said upper intermediate end support extension has a flared sleeve to matingly engage the top of said lower intermediate end support extension, and said lower intermediate end support extension has a flared end to matingly engage the top of said lower end support, and
said upper and lower end supports and upper and lower intermediate end support extension comprise cylindrical metal tubes.
20. Support of claim 1 , additionally comprising a ground anchor for a guy rope for said support, said anchor comprising paired parallel ground penetrating prongs attached at an acute angle to a triangular base adapted to rest on the ground, said prongs being connected to said base at two apices, a tiedown loop being attached at the third apex of said base, said prongs and the sides of said base adjacent said third apex being an integral rod having angular bends at said apices, the third side of said base forming a connecting member between said apices.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/112,522 US20060237575A1 (en) | 2005-04-25 | 2005-04-25 | Portable volleyball net and supports |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/112,522 US20060237575A1 (en) | 2005-04-25 | 2005-04-25 | Portable volleyball net and supports |
Publications (1)
Publication Number | Publication Date |
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US20060237575A1 true US20060237575A1 (en) | 2006-10-26 |
Family
ID=37185856
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US11/112,522 Abandoned US20060237575A1 (en) | 2005-04-25 | 2005-04-25 | Portable volleyball net and supports |
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US (1) | US20060237575A1 (en) |
Cited By (4)
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US20100248868A1 (en) * | 2008-04-29 | 2010-09-30 | William Massaro | Portable Pitching Rubber |
JP2016202282A (en) * | 2015-04-16 | 2016-12-08 | 光夫 小町 | Baseball base |
CN114162681A (en) * | 2021-12-28 | 2022-03-11 | 江西科技学院 | Slope protection network winding and unwinding devices for civil engineering |
US11691060B1 (en) * | 2022-02-08 | 2023-07-04 | Eastpoint Sports Ltd., Llc | Adjustable net system |
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US6496949B1 (en) * | 1999-08-06 | 2002-12-17 | International Business Machines Corp. | Emergency backup system, method and program product therefor |
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US349686A (en) * | 1886-09-28 | Adelphia | ||
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US20100248868A1 (en) * | 2008-04-29 | 2010-09-30 | William Massaro | Portable Pitching Rubber |
US8167746B2 (en) * | 2008-04-29 | 2012-05-01 | William Massaro | Portable pitching rubber |
JP2016202282A (en) * | 2015-04-16 | 2016-12-08 | 光夫 小町 | Baseball base |
CN114162681A (en) * | 2021-12-28 | 2022-03-11 | 江西科技学院 | Slope protection network winding and unwinding devices for civil engineering |
US11691060B1 (en) * | 2022-02-08 | 2023-07-04 | Eastpoint Sports Ltd., Llc | Adjustable net system |
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