Class 473/490 - Means for dividing field or court into compartments; element thereof or accessory therefor (e.g., a net, marking strip, marked line, etc.)

Subclass of Class 473 - Games using tangible projectile
Definition: Subject matter comprising means adapted and intended to
No. of patents: 100
Last issue date: 04/17/2012

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Number	Title	Issue Date
8157677	Table tennis caddy A table tennis caddy for mounting to a table tennis table includes a table tennis net assembly including a net mounted on a net frame. The net frame includes a net post extending upward. An outside connection mechanism underneath the net frame is disposed toward an ...	04/17/2012
8137220	Electronic marker stakes for sports fields A marker stake for locating a boundary reference point on a sports field can be buried and out of sight when not in use, and then quickly located using an electronic receiver which detects a signal emitted by an electronic marker in the marker stake. Various field b...	03/20/2012
8070630	Electronic marker stakes for sports fields A marker stake for locating a boundary reference point on a sports field can be buried and out of sight when not in use, and then quickly located using an electronic receiver which detects a signal emitted by an electronic marker in the marker stake. Various field b...	12/06/2011
7951021	Target ball game kit A target ball game kit is provided that is easily carried and readily assembled to facilitate play in recreational areas such as parks or beaches. The kit includes a container housing a plurality of paddles, a plurality of balls having varying weights, and at least ...	05/31/2011
7909712	Method of laying out a baseball diamond A method of laying out a baseball diamond includes providing home, first, and third bases. A second base includes a measuring tape coupled to a reel. The method includes withdrawing an amount of tape corresponding to a desired distance between second and home bases....	03/22/2011
7901306	Electronic marker stakes for sports fields A marker stake for locating a boundary reference point on a sports field can be buried and out of sight when not in use, and then quickly located using an electronic receiver which detects a signal emitted by an electronic marker in the marker stake. Various field b...	03/08/2011
7798922	System and method for selectively marking objects A surface is selectively marked by using a coating containing quantum dots. When exposed to an energizing source, the quantum dots emit colored light to selectively mark the surface. In an embodiment, a green artificial turf field is marked with two sets of lines, w...	09/21/2010
7731611	Portable horseshoe playing court A portable horseshoe court demarcation device formed of a plurality of engaged pairs of flexible members such as webbing. The ends of the flexible members once engaged to the ground mark a Horseshoe court. Center sections of one pair of flexible members provide a re...	06/08/2010
7429223	Gate for a paddle and ball game The invention relates to a gate apparatus for a paddle and ball game, to a game including the same and to methods for playing the game. The gate apparatus comprises a frame for delimiting a closed region above the ground for a ball to be transferred therethrough and...	09/30/2008
7429225	Tennis net lifter system and associated method A tennis net lifter system includes first and second portable lifter posts positioned adjacent to existing tennis net anchor posts in various positions. A mechanism is included for connecting the lifter posts to the anchor posts. A mechanism is included for telescop...	09/30/2008
7361104	Automated ball game training and playing system A ball game system for training and/or play comprising one or more playing areas suitably large to accommodate running and jumping players, each playing area including adjacent surface areas forming a court and having distinctly different properties, such as a first...	04/22/2008
7344458	Overhead-supported net system A net system pivotally displacing a net between a playing position in a vertical plane bifurcating a playing area and a nearly horizontal elevated storage position freeing the playing area for other uses. Parallel poles are located on opposite sides of the playing a...	03/18/2008
7311619	Racquet and ball sport court and target system A system for training to play better at tennis includes indicia for indicating desired target areas of a tennis court and rules for determining points to be given for striking a desired target area. Preferably, points are given only on the last shot of a play. ...	12/25/2007
7245994	Apparatus for cleaning lines on a playing surface and associated methods, enhancements An apparatus and method for clearing a playing surface are provided. The apparatus preferably includes a chassis or frame, a sensor connected to the chassis to sense a location of a line on a playing surface that needs to be cleaned, and a drive connected to the cha...	07/17/2007
7219438	System for operating one or more suspended laser projectors to project a temporary visible image onto a surface A temporary visible image, such as a first down reference line, corporate logo, or text is projected onto a target surface by an orientation-stabilized, fiber-fed laser projector. The projector may include at least one cylindrical lens or at least one pair of X-Y sc...	05/22/2007
7204764	Hockey safety net A method and system are provided for supporting, installing, and removing a safety net or other partition in a multiple use facility. The support system is comprised of a number of linear or substantially linear segments that are coupled together in a configuration ...	04/17/2007
7185439	System for measuring the position of a ball in a sporting event A sporting apparatus for use in football. The sporting apparatus is a system that measures the manner in which football downs and distance is calculated in football. The system includes two down markers, a ball marker, and a hand held device which are in visual cont...	03/06/2007
7182704	Automated ball game training and playing system A ball game system for training and/or play comprising a one or more playing areas suitably large to accommodate running and jumping players, each playing area including adjacent surface areas forming a court and having distinctly different properties, such as a fir...	02/27/2007
7175550	Training aid for pitchers and catchers A low profile, baseball training aid device to provide a proper target for the pitcher and a positioning aid for the catcher receiving the pitcher's throw. The device, preferably fabricated of a thermoplastic material, comprises a base section mounting a pair of sid...	02/13/2007
7168883	Tennis surface A simulated clay tennis surface has a first region tufted with synthetic ribbons of a first height, and a second region tufted with synthetic ribbons higher than those of the first region. A granular infill material is applied to a depth which covers the ribbons in ...	01/30/2007
7134526	Driveway safety net and method A driveway safety net. The safety net includes two stakes and a net that attaches between the two stakes. When the two stakes are placed on both sides of a driveway and the net is attached between the two stakes, the net hinders balls and other toys from rolling pas...	11/14/2006
7063324	Ball pitching game method The present invention discloses a bowling/pitching game that can be played virtually anywhere a substantially flat surface can be found and is enjoyable for adults as well as children. The playing field includes a distance marker and a scoring goal comprised of an o...	06/20/2006
7011587	Inflatable field enclosure divider An inflatable barrier for simultaneously substantially enclosing several areas comprising an elongated, hollow barrier member formed of connected elements of flexible substantially fluid impervious material joined to form a continuous configuration of sufficient siz...	03/14/2006
7001288	Soccer practice cage A soccer practice cage including an enclosure defining an enclosure interior and multiple ball openings provided in spaced-apart relationship with respect to each other in the bottom portion of the enclosure and communicating with the enclosure interior. In typical ...	02/21/2006
6988964	Yard game that uses balls and rings A method of playing a game comprises a number of steps. Initially, boundaries of a playing field are marked with the playing field including a plurality of playing zones, with at least one end of the playing field acting as a throwing line. The game is initiated by ...	01/24/2006
6976928	Sports ball spotting apparatus An apparatus used to officiate sporting events in which the positioning of the ball on the field by the officials is critical to the play. The apparatus employs a laser beam which is directed by the official parallel to the field of play at a height below the width ...	12/20/2005
6948689	Portable apparatus for demarcating a region with respect to the ground A portable apparatus for demarcating a region with respect to the ground comprising a plurality of posts adapted to be removably inserted into the ground. The apparatus further comprises an adjustable connecting means which is secured by a receiving member in an upp...	09/27/2005
6932726	Volleyball net pretensioned with rigid side strips A volleyball game net or the like includes an elongate and rectangular net having rigid side marginal strips attached to its opposed sides. Each rigid side marginal strip includes a closed hollow body having a closed hollow cross-sectional configuration at an outer ...	08/23/2005
6908360	Boomerang-like toy The invention is a projectile plaything, namely a boomerang-like toy that, if properly thrown, will fly in an arcuate path and return to the area of its release. The plaything will be formed to imitate the shape of the United States Air Force B2 Bomber, aka the Stea...	06/21/2005
6895677	System for operating one or more lasers to project a visible line onto a surface At least one temporary visible reference line is projected onto a target surface, as for example, an athletic field, by several laser sources. A first laser source emits optical energy—at a wavelength of between 380 nm and 750 nm—along at least a first selectabl...	05/24/2005
6802789	Volleyball practice system A volleyball practice system that includes a generally rectangular first flexible panel supported from a pair of vertical supports, and at least one connector of adjustable length extending from at least one of the lower opposing corners of the first flexible panel....	10/12/2004
6796041	System for operating one or more lasers to project a visible line onto a grass-covered surface An apparatus for providing at least one temporary visible line on a surface within the view of at least one video camera. The system comprises a first laser source disposed at a first elevated, stationary location relative to the surface, and a second laser source d...	09/28/2004
6751880	System and method for operating groups of lasers to project a visible line of demarcation within discrete regions of an athletic field The surface of an athletic field is divided into multiple regions or zones. A first of these zones is served by a first group of laser sources. A second of the zones is served by a second group of laser sources. Each group includes at least two lasers arranged to pr...	06/22/2004
6716123	Net support rack assembly A net support rack assembly comprising two connectors, two longitudinal tubes, four transverse tubes, two elastic cords, two bottom tubes, two first connecting tubes, a second connecting tube, a net, an elastic lock, and two clamping members. Thus, the net is fully ...	04/06/2004
6682444	Ball game method for play on a court including a deformable-elastic surface A game court and method for playing a game thereon are disclosed. The game court comprises a playing surface suitably large for running and jumping players, having adjacent surface areas with distinctly different properties. A first area of the playing su...	01/27/2004
6676546	Game court for elevated goal ball game and game played thereon A game court and method for playing a game thereon are disclosed. The game court comprises a playing surface suitably large for running and jumping players, having adjacent surface areas with distinctly different properties. A first area of the playing su...	01/13/2004
6634966	Ball game system including a resiliently suspended floor and elastic ball A game court and method for playing a game thereon are disclosed. The game court comprises a playing surface suitably large for running and jumping players, having adjacent surface areas with distinctly different properties. A first area of the playing su...	10/21/2003
6579195	Baseball swing trainer device The unitary structure includes a rear frame member from which oppositely disposed side frame members extend forwardly. Laterally extending forward frame members are provided on the side frame members to define batting boxes for left and right hand batters...	06/17/2003
6488600	Sports floor structure A court for accommodating players in play of a game that employs a ball comprising a floor including a playing surface having ends, goals each supported proximate one of the ends, markings on the playing surface that define fields that govern the play of ...	12/03/2002
6430819	Sport measuring apparatus A measuring apparatus for identifying the boundaries and indicia of a basketball court or street hockey rink, respectively. In a first embodiment, the measuring apparatus comprises the combination of an elongate measuring strip and the casing for containi...	08/13/2002

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Class 473/490 - Means for dividing field or court into compartments; element thereof or accessory therefor (e.g., a net, marking strip, marked line, etc.)