Abstract: An eccentric weightlifting machine that includes a first pole connected to a first weight and to a device acted on by a user, a second pole connected to a second weight and to a motor, wherein the motor lifts the second pole in response to movement of the first pole by the user, and a latch configured to latch the first pole to the second pole during an eccentric exercise portion of a weightlift.

Abstract: An exercise machine for performing triceps press exercises, including a moving user support that supports a user in a seated position. The exercise machine includes a linkage assembly that allows the moving user support to tilt as the user performs the triceps press exercise. As the user extends his or her arms from an exercise starting position to an exercise ending position, a user support frame—and thus the user's torso—reclines progressively backwards. The user's natural reaction to this reclining sensation is to bring his or her head forward, which encourages the user to plant his or her lower back firmly into a stable position against a back pad and in turn reduces the risk of injury associated with excessively arching of the lower back.

Abstract: The gluteal muscles are exercised using a vertical lift strategy. It is much improved over common buttock exercise methods of sitting, laying, squatting or pushing weight horizontally. The (GM) power lift apparatus is operated in a standing position. Using commercial exercise design methods, the GM power lift apparatus is designed around the lifting of a variable weight plate stack. Three pullies redirect the pull force of the weight plate under the operator's foot as lift on the gluteus maximus muscle group. The new standing design allows improved muscle agitation by making the gluteus maximus muscle group lift a vertical payload, the maximum angle of force. During the power lift stroke, the foot, leg and back muscles are vertically synchronized to horizontal stretched forearms providing greater strength management.

Abstract: In some embodiments, a battle rope strength trainer device is provided. The battle rope strength trainer device provides a multifunction exercise device that combines strength building properties of body weight strength exercises with the cardiovascular training of battle rope oscillation exercises in one product. In one embodiment, the battle rope strength trainer device includes an anchor, a rope and a mounting device. The rope includes a first end coupled to the anchor and two free ends. The first end is attachable to a structure via the anchor and the two free ends are positioned opposite to the first end. The mounting device is coupled to the structure above the anchor. In that regard, the mounting device is adapted to receive a portion of the rope associated with each of the two free ends to enable movement of the rope for a plurality of exercises.

Abstract: An exercise system, in a first mode of operation, provides for strengthening of legs of a user and enhancing the user's ability to develop and maintain balance and, in a second mode of operation, for providing various forms of core, arm, and upper body training. The system includes two resilient hemispheres each having a projecting dome and, on an opposite side, a rigid substantially flat weighted base in relationship about each hemisphere and a circumferential ring is proportioned to engage a periphery of the base of each hemisphere. An outer area of the periphery of each base includes elements with connecting rings secured to the engagement elements. Resistance training bands of selectable resistance are securable to one or plural connecting rings. A push-up handle of each hemisphere is press-fittably securable into an axial recess within the weighted base and selectably connects to different weights within the recess.

Abstract: An exercise machine handle indicia system for facilitating efficient and proper exercise movements by an exerciser. The exercise machine handle indicia system generally includes a frame, a carriage movably positioned upon the frame, a bias member connected between the carriage and the frame that applies a bias force upon the carriage, and a first handle and a second handle connected to the frame near the first end of the frame. The first handle includes a first indicia to indicate where to position a first hand of an exerciser to perform a first exercise and the second handle includes a first indicia to indicate where to position a second hand of the exerciser to perform the first exercise. During the performance of an exercise, the exerciser is instructed by a human instructor or an electronic device which indicia on the handles to position their hands or other body parts.

Abstract: An auxiliary foam roller exercise support apparatus including a trapezoidal platform with an open center area, a left longitudinal side, a right longitudinal side, an open front side, and a rear longitudinal side. A flexible cover over the open center area enables a user to rest his or her head and neck while exercising with a foam roller. Each of a left front leg and a right front leg of a pair of front legs has a handle at the top, a wheel at the bottom, and is attached to the trapezoidal platform. Each of a left rear leg and a right rear leg of a pair of rear legs also has a wheel at the bottom and is attached to the rear longitudinal side of the trapezoidal platform. A pair of cross beams support the apparatus and connect at each of the bottom of the pair of front legs and the pair of rear legs.

Abstract: A portable sit-stand elliptical exercise machine includes a seat, a transmission wheel installed at the seat, two linkage mechanisms installed at the transmission wheel, and two mobile pedals respectively installed at the linkage mechanisms. Each linkage mechanism includes a driving portion connected to the transmission wheel, an axle portion disposed at one side away from the transmission wheel, and an adjustment portion disposed between the axle portion and the driving portion. Each mobile pedal is pivotally connected to the axle portion and includes a plurality of assembly portions. Thus, an angle is formed between each mobile pedal assembled to one of the assembly portions and the linkage mechanism to facilitate a user to utilize the portable sit-stand elliptical exercise machine in either a sitting or standing posture, thereby solving issue of a conventional solution that cannot be applied for a dual use of both sitting and standing postures.

Abstract: A user weight resisted rowing exercise simulation machine with a movable user support pivotally connected to a forward portion of a stationary horizontal base frame and a slidable seat and rigid feet support mounted to the movable user support frame and a pulling handle operatively connected to the movable user support frame such that moving the pulling handle towards the rearward portion of the machine causes the rearward portion of the user support frame to pivot upward and moving the pulling handle away from the rearward portion of the machine causes the rearward portion of the movable user support to pivot downward and the force required to move the pulling handle towards the rearward portion of the machine is reduced and controlled by the operative connection of the pulling handle to the user support frame.

Abstract: The spa rowing adapter is a device for installation within an existing pool or spa that transforms the pool or spa into a rowing machine. The user grips lever arms, pulling on the arms from a seated or standing position in a rowing motion. In contrast to the prior art, the spa rowing adapter uses a resistance cylinder rather than floppy resistance bands or bungee cords. The resistance cylinder provides an adjustable amount of resistance during both the extending and retracting motions. The resistance cylinder changes length in response to a force, with the resistance of the motion set by an internal mechanism. The internal mechanism is adjustable by the user through rotation of a collar.

Abstract: A treadmill includes a frame having two sides each provided with two sprockets, two slide rails mounted on the two sides of the frame, two chains engaging with the two sprockets at the two sides of the frame respectively and corresponding to the two slide rails respectively, a plurality of elongate board mounted between the two chains, and a plurality of rollers mounted on each of the two chains. Each of the elongate board has two ends each provided with a connecting member connected with one of the two chains. The rollers on each of the two chains rest on one of the two slide rails. Thus, when the two chains are rotated, the rollers on each of the two chains slide on one of the two slide rails.

Abstract: An exercise device having (-) a frame, (-) left and right leg linkages, each including (i) an upper leg member pivotally coupled to the frame for pivoting about an upper pivot point with the upper pivot point of each leg linkage defining a point on a laterally extending upper pivot axis that passes through the upper pivot point of each leg linkage, and (ii) a lower leg member directly pivotally coupled to the upper leg member distal to the upper pivot point for pivoting about a lower pivot point, and (-) a foot support attached to each lower leg member distal to each respective lower pivot point. The invention characterized by an ergonomically synergistic spatial orientation and relationship amongst and between the upper leg members, lower leg members, upper pivot axis, lower pivot axis, hip region of a user, knees of a user, a biased damping means in communication with the lower leg members, and an interconnect member interconnecting the lower leg links with and the biased damping means.

Abstract: A device that is used to extend the spine and put it in traction, that is portable and user friendly. The device in an embodiment is grasped by the handles on either side and then is pushed toward the lower leg and against the upper calves via vertical intermediary bar pushing the legs with a horizontal bar in one direction and the shoulders in the other. The described process stretching the spine and putting the back in traction for the purposes of pain relief and stretching of the back muscles. The device can be an inexpensive alternative to other devices, as well as, easier to use. The force placed on the device and therefore on the spine or back is controlled by the user as is the ability to stop quite quickly if pain were to arise, giving the user complete and instant control.

Abstract: A portable bodyweight exercise device collapses into a neat and compact folded state. The device is simple to use, relatively inexpensive, and is self-contained and useful in virtually any environment and without need of other materials or conditions. The primary functionalities stem from the device's provision of an elevated weight-bearing anchorage from which to suspend all or part of one's weight, either by direct contact or through connecting equipment such as webbing straps. This allows for a variety of exercises to be performed for every major part of the body and can obviate use of expensive larger home gym equipment or commercial gym membership. In addition to muscle development, the device is favorable to other health and fitness purposes such as physiotherapeutic and palliative care.

Abstract: An exercise apparatus includes a pair of handle elements and a pair of housing elements. Each handle element includes a manually grippable bar and a base portion having a substantially spherical contact surface. Each housing element is substantially hemispherical and has a substantially central window. Each handle element is releasably locatable within a housing element to form a substantially hemispherical handle body in which the contact surface of the handle element is located within the window of the housing element and provides a contact point about which the housing body is rotatable when located on a support surface.

Abstract: Methods and apparatuses for athletic performance monitoring with body synchronization analysis are disclosed. In one example, a first sensor output associated with a movement of an user foot and a second sensor output associated with a movement of an user arm are received, the user arm on a body side opposite the user foot. The first sensor output and the second sensor output are analyzed to identify a degree of synchronization between the movement of a user foot and the movement of a user arm.

Abstract: A wearable apparatus for using reinforced neurofeedback for sports training is configured to be worn at or near a user's joint to monitor a position of the user's joint. One such a wearable apparatus comprises a processor, a computer-readable medium, a sensor, an I/O component, a battery, a timer, a signaling component, and a flexible printed circuit. The computer-readable medium store at least one optimal range of the user's joint and/or a sequence of timed optimal ranges of the positions of the user's joint for a specific sport. The sensor continuously detects the position of the user's joint. Once the processor determines that the user's joint falls outside the optimal range of the position of the user's joint, the processor activates the signaling component to send a feedback signal for the user to make immediate corrections to the position of the user's joint.

Abstract: The present disclosure relates to effective, efficient, and economical methods and systems for improving athletic performance by tracking objects typically thrown or hit by athletes. In particular, the present disclosure relates to a unique configuration of technology wherein an electronic display is located at or behind the target and one or more cameras are positioned to observe the target. Once an object is thrown or hit, one or more cameras may observe and track the object. Further, an electronic display may be used to provide targeting information to an athlete and also to determine the athlete's accuracy.

Abstract: An athletic device is worn by a participant during an athletic event (e.g., a race). In one example, a race course is provided with a plurality of mats or signal devices along the race course. The mats may have antennas and generate a magnetic field. The device may include a chip system having an RFID tag and a display. As the participant progress along the course, the tag is triggered at each mat and race data may be displayed on the device. Data relating to a location of the participant may also be provided to the participant during the athletic event.

Abstract: A method and apparatus for providing workout guide information are provided. The apparatus includes a display, a memory configured to store workout route data including location data and elevation data, and a user profile, and a processor configured to determine at least one slope section through an analysis of the workout route data based on the user profile and output a map for displaying a workout route including the slope section to the display. The slope section in the workout route is configured to be displayed in a different form than a non-slope section. In addition, various embodiments identified throughout the specification are disclosed.

Abstract: In general, the present invention relates to exercise devices and systems that can receive and run workout programs that include control command subsets that control the moveable members of a plurality of different exercise devices. Exercise devices of the present invention are able to ignore the control command subset(s) that do not control their moveable member(s) and recognize the control command subset(s) that control their moveable member(s). Exercise devices of the present invention are further able to, if necessary, perform a sizing restriction to the relevant control command subset(s). Motivational content may also be modified in connection with or independently from a sizing restriction made to the control commands. The present invention also relates to a method for controlling one or more exercise device with a workout file that includes control command subsets that control the moveable members of a plurality of different exercise devices.

Abstract: A resistance sensing mechanism including a resistance adjusting unit including a holder frame, a locating sleeve disposed above the holder frame, an adjustment screw rod rotatably inserted through the locating sleeve and a screw nut threaded onto the adjustment screw rod and pivotally connected to the holder frame, and a sensor unit including a first linkage pivotally connected with one end to the screw nut, a second linkage having one end pivotally connected to an opposite end of the first linkage and an opposite end pivotally connected to the locating sleeve, a sensor mounted at one of the first and second linkages and a sensible member mounted at the other of the first and second linkages to face toward the sensor. Subject to the linkage relationship between the first and second linkages, the distance between the sensor and the sensible member can be changed, thereby generating a relative sensing signal.

Abstract: An exercise device for attachment to an exercise machine includes an enclosure having an outer wall that defines an internal space therein, at least one cable aperture and an attachment mechanism for attaching to the exercise machine. A winding assembly is rotationally captured within the internal space and includes a winding spool configured for receiving at least one cable wound therearound under the urging of a coil spring. A motor is used to compress or retract a torsion spring fixed between a moving rotor plate and the winding spool for changing a cable unwind resistance. A controller circuit is electrically connected with at least a power source, a user interface, and the motor. To perform exercises with the exercise device, a person sets a desired cable unwind resistance with the user interface and then repeatedly pulls and releases the cable.

Abstract: Low compression multi-piece golf balls having a solid core comprising at least one layer made of a plasticized thermoplastic composition are provided. Preferably, the ball has a compression of less than 60 and more preferably less than 50. The ball includes a cover in addition to the core sub-assembly. For example, two-piece and three-piece golf balls may be made. The plasticized thermoplastic composition preferably comprises: a) ethylene acid copolymer, b) plasticizer, and c) cation source. Preferably, a fatty acid ester such as butyl oleate is used as the plasticizer. In two-layered core constructions, the outer core layer is preferably formed from a thermoset composition such as polybutadiene rubber. The core layers may have different hardness levels. The core structure and resulting ball have relatively good resiliency at given compressions.

Abstract: A golf ball includes a core having an outer surface and a geometric center. The core is formed from a substantially homogenous rubber composition. An ionomeric inner cover layer is formed about the core and has a material hardness of about 60 Shore D or greater. The golf ball includes an outer cover layer formed from a polyurea or a polyurethane and having a material hardness of about 60 Shore D or less. The outer surface of the core has a trans content of about 12% or less and a hardness of about 71 to 88 Shore C. The geometric center of the core has a trans content of about 10% or less and a hardness of about 60 to 80 Shore C. The core has an outer surface hardness greater than a geometric center hardness by about 5 to 19 Shore C to define a positive hardness gradient.

Abstract: An American style football including an inflatable prolate spheroidal shaped bladder, a cover assembly, a lacing and an electronic circuit. The bladder includes a valve assembly and a pocket that are symmetrically spaced about a longitudinal plane. The cover assembly includes at least first, second, third and fourth cover panels collectively positioned over the bladder. One of the first and fourth cover panels extending over the valve assembly and the other of the first and fourth cover panels extending over the pocket. The lacing extends along the longitudinal plane and coupled to the first and fourth cover panels. The electronic circuit is retained by the pocket. The electronic circuit includes at least one sensor and the electronic circuit being configured to produce a signal to enable at least one characteristic of the football to be monitored during use.

Abstract: The present invention is directed to a metallized golf ball possessing a masked section and methods for achieving a metallized golf ball possessing a masked section. The invention provides a golf ball masking stand, which effectively masks a portion of a golf ball, allowing coatings to be applied to the golf ball, while preventing coating of the masked section. Alternative masking techniques are disclosed, including the use of labels, double-stick tape, and printing methods to create a masked section. Preferably, metallization of the golf ball is achieved using physical vapor deposition and preferably a hydrophobic protective coating is applied to the metal layer inside the metallizing chamber.

Abstract: A disc retriever comprising a disc capture frame, a handle, and means for attaching the two to one another provides improvements over prior disc retrievers. A disc capture frame for a disc retriever has a disc capture space bounded on top, bottom, and lateral sides with a gap on the top side that is off center and a hook for hooking, flipping, or repositioning a disc or frisbee. A kit for making a disc retriever comprises a disc capture frame, a handle, and means for connecting the two.

Abstract: In a golf club, an apparatus which secures a shaft to a head comprises a rotator, a shaft adapter, a rotator connection mechanism which provides for the rotator be secured to the head in a plurality of rotational orientations, and a shaft adapter connection mechanism which provides for a component of the shaft adapter to be secured to the rotator in a plurality of rotational orientations. Under a condition that the shaft adapter is a skewed axis shaft adapter, the apparatus can be used to make independent adjustments to the head's mass distribution properties and angular orientation with respect to an axis of the shaft. The apparatus is also useful in making adjustments to the golf club's face progression and to the shaft's rotational orientation with respect to the head.

Abstract: A golf club head having a replaceable striking face is disclosed herein. More specifically, the present invention discloses a golf club head where at least a portion of the frontal striking surface of the face is detachable and replaceable to improve performance. The replaceable striking face may be connected to the body of the golf club head using at least one screw engaging at least one screw well and said at least one screw receptacle. A golf club in accordance with the present invention may generally have a thinned striking face with a thickness of less than about 3.0 mm yielding a golf club head with a larger sweet spot that's greater than 6% of the frontal striking surface.

Abstract: Embodiments of golf club heads with aerodynamic shape and related methods are described herein. Various embodiments of the golf club heads with aerodynamic shape and related methods include a golf club head comprising a body. In many embodiments, the body comprises a heel region, a toe region opposite the heel region, a faceplate, a crown, and a sole opposite the crown. In many embodiments, the faceplate comprises a faceplate height measured perpendicularly to a ground plane when the golf club head is at an address position and a faceplate width measured from the heel region to the toe region and in a direction perpendicular to the faceplate height. In some embodiments, the crown comprises an inflection point located at an inflection distance from the faceplate, the inflection distance measured from a center of the faceplate and perpendicularly to the faceplate height. Other examples and related methods are also disclosed herein.

Abstract: Disclosed herein are various embodiments of a golf club head having improved mass distribution characteristics. The golf club head includes a body and a face positioned at a forward portion of the body. The golf club head also includes one or more mass elements positioned at predetermined locations about the head. The mass elements assist in achieving a desired relationship between the moment of inertia about a center of gravity x-axis and the moment of inertia about a center of gravity z-axis.

Abstract: A golf club head has a body defining a ball striking face. The body further has a first leg extending away from the ball striking face and a second leg extending away from the ball striking face wherein a void is defined between the first leg and the second leg. The body further defines a crown that extends over the void.

Abstract: A golf club head with a multi-level badge is disclosed herein. More specifically, the golf club head in accordance with the present invention is an iron type golf club head with a multi-level badge that on one level contacts a rear surface of the striking face of the golf club head, and a second level of the multi-level badge contacts a rear surface of a cavity created by the chassis of the golf club head. The gap created between the striking face of the golf club head and the rear of the chassis could be filled with a fluid that has a temperature variable viscosity, providing vibration attenuation.

Abstract: A putter-type golf club head that, when oriented in a reference position, includes a blade portion having a striking face, a top line, and a sole, the striking face in turn including a face center. The club head further includes a rear portion in communication with, and rearward of, the blade portion, and it includes an alignment element rearward of, and recessed toward the sole from, the top line. The alignment element defines a virtual center line segment oriented in a substantially front-to-rear direction at a height between 19 mm and 24 mm from a lowermost point of the sole, the center line segment having a length no less than 34 mm and being not spaced more than 10 mm from a virtual vertical plane passing through the face center and extending generally perpendicular to the striking face. A width of the club head is no less than 3.0 in.

Abstract: A golf tee setting device comprising a top side, a bottom side, a first lateral side, and a second lateral side is provided. At least a portion of the top side is stair-stepped having two or more flat surfaces at different heights wherein one or more of the flat surfaces includes an opening extending through the tee setting device to the bottom side and configured such that a stem and a head of a golf tee may pass through each openings. At least a portion of the first lateral side of the tee setting device is stair-stepped having two or more flat surfaces at different heights wherein one or more of the flat surfaces includes an opening extending through the tee setting device to the second lateral side and configured such that a stem and a head of a golf tee may pass through each openings.

Abstract: A co-forged iron type golf club is disclosed. More specifically, the present invention discloses a co-forged iron type golf club with the body portion made out of a first material and at least one weight adjustment portion monolithically encased within the body portion of the co-forged iron type golf club head without the need for secondary attachment or machining operations. The present invention creates of an iron type golf club head from a pre-form billet that already contains two or more materials before the actual forging process resulting in a multi-material golf club head that doesn't require any post manufacturing operations such as machining, welding, swaging, gluing, and the like.

Abstract: A golf club length adjustment device, comprising a first member affixed to a main shaft, the main shaft configured to couple to a golf club head, a second member slideably coupled to the first member, the second member adapted to couple to a golf club grip, wherein the first member is configured to slide along a club axis relative to the second member to change the length of the golf club, a backout prevention unit configured to limit the second member from uncoupling from the first member after the golf club length adjustment device has been assembled, a decoupling tool configured to be inserted through an access hole formed in a proximal end of the grip, the decoupling tool configured to engage and deflect the backout prevention unit, disengaging the backout prevention unit from the second member, allowing for disassembly of the second member from the first member.

Abstract: A method of making a ball bat may include forming a bat frame with a handle and an inner barrel structure, providing spacer elements extending radially outwardly from the inner barrel structure, and forming a barrel shell having a main barrel and a tapered section. An inner diameter in the tapered section may be equal to an outer diameter of a first one of the spacer elements. The method may include mechanically locking the barrel shell to the bat frame by passing the handle through the barrel shell and moving the barrel shell toward the inner barrel structure until the barrel shell contacts the first one of the spacer elements. A gap is maintained between an outer diameter of the inner barrel structure and the barrel shell. The barrel shell may deflect during a hit to create a trampoline effect, while the inner barrel structure limits the deflection.

Abstract: A golf club 2 includes a head 4, a shaft 6, and a grip 8. The club 2 has a forward club flex of greater than or equal to 170 mm. The forward club flex is measured for a golf club in the completed state. The weight of the head is denoted by Wh, and the weight of the club is denoted by Wc. Wh/Wc is greater than or equal to 0.72. With the golf club 2, a force acting on the player's body during a swing can be reduced. The golf club 2 can stabilize swing.

Abstract: The present invention relates to a ball game racket, a method for adjusting the length of the handle portion of a ball game racket and a handle shell for the handle portion of a ball game racket.

Abstract: A user-friendly golf club head cover system adapted for full operation while never leaving its spot in the golf bag. It allows access to the club via a simple downward physical movement of the incorporated tube. The club head cover portion remains open until the golf club is reinserted into the system. The club head cover has a partially connected top panel that is closed via a simple upward physical movement of the incorporated tube. An internal spring panel or solid body structural top panel with residual biases may assist the opening and closing of the top panel. A series of rods maintain the golf club head cover in the golf bag. A magnetic closure keeps the club head cover portion closed. The opening and closing may be facilitated by manual manipulation of the top panel alone.

Abstract: The present invention provides a portable basketball arcade, including a backboard, two basketball rims, two telescopic support upright rods, two telescopic support bottom rods, two telescopic reinforcing rods and a support bottom rod. The above portable basketball arcade is simple in structure, by pivoting connection of a plurality of telescopic rods, the angles among respective rods and the height of the basketball arcade are convenient to adjust, such that different heights and distances are provided for users to practice, the portable basketball arcade can be simply and rapidly folded and stored without a need of tools, and the folded basketball arcade is small in occupied space, and convenient to carry and lift; and the basketball arcade is equipped with the ball receiving plate and the side nets, which are convenient for the users to pick up the ball for practice.

Abstract: A ball throwing device includes an arm, a ball holder at a first end thereof, a handle at a second end of the arm, and a mounting member configured for releasably mounting of interchangeable accessories. The mounting member has a first flange protruding away from the arm to a distal end, and a second flange protruding away from the first flange, in proximity to the distal end. The first flange has at least one recess. The interchangeable accessory has a mounting flange with an opening configured for the accessory to releasably couple to the mounting member. A first portion of the opening is shaped to be slidably received upon the first and second flanges; and a second portion of the opening is shaped to engage the at least one recess. The accessory may be: a spare ball holder, a pet waste bag dispenser, a pet treat container, etc.

Abstract: The fencing sword comprises a handle, a guard, and a short shaft in place of the blade. Weights may be added/removed from the shaft to adjust the weight of the fencing sword. The weights can additionally be added/removed from other fencing swords having different handle designs from other forms of fencing. In some embodiments, a laser pointer is mounted to or near the shaft. The laser may register on a target mimicking scoring a touch in a bout and can be used to train a user's accuracy.

Abstract: A spherical punching ball specifically designed for striking against a wall is disclosed. Embodiments with varied weight, size, rebound characteristics, density parameters, and other considerations are disclosed. Methods of construction, training, and related safety considerations are disclosed.

Abstract: A golf club having a sensor that is removably connected at one or more positions of the golf club where the sensor comprises an inertial measurement unit including an accelerometer capable of measuring linear accelerations in three orthogonal axes and a gyroscope capable of measuring an angular rate of rotation around the same axes. The sensor may further comprise a processor which may perform instructions to detect the impact of the golf club with a golf ball and determine the start of the golf swing without any additional input from the user. The sensor may further have a power management system to extend the life of the power source.

Abstract: A golf ball sensing apparatus for use with a portable electronic device including a data acquisition device and a processing unit, and in association with a golf club and a cup. The apparatus includes a golf ball, at least one sensor carried by the ball and a non-transitory computer-readable medium. The sensor senses at least one attribute of the ball. The medium directs a processing unit to identify the initiation of a first stroke of the ball towards the cup, obtain a first final location after the first stroke, obtain the at least one attribute of the first stroke, store a set of associated data regarding the first stroke, obtain a second initial location of the ball prior to a subsequent second stroke, and output portions of the stored set of data in response to the second initial location being within a predetermined zone of the first initial location.

Abstract: A stabilized course sand bunker and method of making the same is disclosed. The soil making up the bunker is contoured and stabilized so that it is in the form of a pit having a downward angularly extending keyway surrounding the opening at the top edge of the pit. A semi-solid precursor material is applied over the pit and keyway and allowed to cure to form a barrier liner having a flanged anchoring portion for location under some additional soil and turf grass. Bunker sand is disposed over the barrier liner. The barrier liner when cured enables water in the bunker to pass through it, is sufficient flexible to dampen and absorb the impact of a golf ball strike, all the while stabilizing and protecting the edge of the bunker where the turf grass meets the sand in the bunker.

Abstract: A stand for tennis balls and a towel provides a portable free-standing tripod-like structure for conveniently positioning such items as tennis balls and a towel upon a tennis court surface during a game of tennis. The stand provides a hinged construction which enables compact folding for storage when not in use.