Abstract: A hockey faceoff training device has a base for placement on a playing surface, support posts standing upright from the base for placement of disc weights thereover into stacked condition atop the base for weighted anchoring thereof on the playing surface, a connector removably attached to top ends of the posts, and an impact member coupled to said connector via a moveable joint from which the impact members extends downwardly toward the playing surface in a default position. The movable joint comprises a coil spring situated inline with a proximal end of the impact member to bias the impact member into the default position. The base has deployable and retractable spikes to better grip the playing surface. The topside of the base comprises recessed access cavities to accommodate a user's fingers during placement or removal of the disc weights onto or from the base.

Abstract: A baseball hitting/training device consisting of a hitting tee and a baseball. The ball is preferably permanently bonded/molded to a spring. In a preferred arrangement, the ball rests upon an upper tee shaft segment which acts to protect the spring. A length of the spring extends from the ball, through the upper tee shaft segment and into a middle tee shaft segment. A retainer fastens the spring to the middle tee shaft segment. The middle tee shaft segment is inserted into a lower tee shaft segment. The lower tee shaft segment is fixed to a base. When hit with a bat, the baseball remains attached to the tee by the spring and then springs back to its original upright position.

Abstract: An apparatus for demonstrating how golf balls interact with golf clubs includes a downswing plane, a club shaft attached to the downswing plane, a golf club head attached to the club shaft, and a collision-plane indicator attached to the golf club head wherein the collision-plane indicator illustrates the plane created by two intersecting lines that are in the direction of the path and the direction of the club face. Preferably, the downswing plane has an adjustable angle, and preferably the downswing plane swivels. Preferably the club shaft is pivotally attached to the downswing plane. Preferably the apparatus includes a removable golf ball with a spin axis through the middle of the ball, and with a black line across the middle of the ball that indicates spin direction perpendicular to the ball's spin axis.

Abstract: A device allows a golfer to hit full swing golf shots with a real ball in a limited area while still providing the golfer with trajectory information about their shot and realistic feel of an actual golf ball. The device tethers a golf ball to the ground. When the golfer swings, the ball flies about 20 yards and drops to the ground. The device is easy to use and affordable. The device is made from two different cord materials, one being more elastic than the other, allowing the golfer to hit a ball without having the ball spring back to hit the golfer. The golf ball can be attached to the cord with a lightweight screw eye screwed into the ball.

Abstract: A practice golf swing device which permits the swinger of a golf club to hit a variable height replica golf ball that is fixedly attached to a universally pivoting arm (swivel arm) that moves in direct proportion to the swing path and speed of the golf club. The motion thus initiated in the swivel arm may be measured at the base of the arm (knuckle ball) using an optical/digital sensing output as disclosed in U.S. Pat. Nos. 5,288,993 and 5,703,356 with this measurement being computed so as to numerically or graphically depict the movement. This graphical depiction may be viewed as a pictorial view of a golf ball in flight along the path that would be expected had the ball been struck by a golf ball with the same force and direction that is imparted to the replica golf ball, which is attached to the pivot arm of the device. The apparatus has a self-zeroing capability that provides an identical “at rest” position prior to impact.

Abstract: An apparatus for developing and practicing golf skills that is readily portable and which can be used in a relatively restricted or confined areas is provided. The apparatus includes a shot indicator mounted on a vertical shaft which is caused to rise on the vertical shaft during use as indicator of the effectiveness of the shot in terms of distance of flight which would have been attained by a golf ball if driven by a blow of equal force and direction. The shot indicator is caused to rise on the vertical shaft by a user hitting a target which is laterally spaced from the vertical shaft. A target support is rotatably attached to the vertical shaft at one end and supports the target at an opposite end. Rotation of the target support releases a compression spring which acts on the shot indicator causing it to rise on the vertical shaft.

Abstract: A sports training device comprises a substantially vertical standard with a suitable ball at the top for practicing sports such as baseball or tennis or a bent over standard with a ball close to the ground for practicing sports such as golf. The ball is attached to an arm that is, in turn, attached to a pivot and a spring both on the standard. Striking the ball in the normal manner for the particular sport causes the ball to move away from the bat, racket or club until clear. The ball then returns under the influence of the spring and oscillates about the starting location of the ball. Depending on spring tension and damping effects of the arm, spring and standard, the ball will become stationary very quickly or continue to oscillate widely. For some sports, heavy damping is preferred. For other sports, light damping may be preferred.

Abstract: A golf practicing device includes a housing, an electromagnet mounted in the housing, a cover rotatably mounted on the housing, a magnetic block secured on the cover and aligning with the electromagnet, and a bar mounted on the cover for rotating the cover when the bar is hit. Thus, the energized electromagnet produces a magnetic force to magnetically attract and move the magnetic block to return the bar to the original position, so that the bar can be restored to the original position automatically, thereby facilitating the user practicing the golf skill.

Abstract: A golf practicing device includes a rotation disk, a cover, a bar, and an adjusting knob. The golf practicing device has a height adjustable function. Thus, the height of the practicing ball of the bar can be adjusted arbitrarily so as to fit users of different heights and statures, thereby facilitating the users operating the golf practicing device.

Abstract: A golf swing practicing device includes a light comb member enclosed in a dome member, and a shaft extends through a base plate connected to the dome member and the light comb member. A mounting cap is connected to a top of the shaft extending through the dome member. A flexible rod is rotatably connected to the mounting cap. A golf ball is connected to a distal end of the flexible rod. A sensor is connected to the base plate, and the comb members of the light comb member movably engage between two lugs on the sensor. A display member is connected to the sensor so as to illustrate the information of the golf ball hit by the player.

Abstract: A golf practicing device includes a tube fixedly disposed to a supporting floor with a sleeve rotatably mounted to the tube, a detecting member disposed beside the tube and an illustrative member disposed on a top of the tube. The sleeve has a flange extending radially and outwardly therefrom which has a plurality of protrusions extending downwardly from a periphery of the flange so as to cooperate with the detecting member which is electrically connected to the illustrative member. A base member is attached to the sleeve and has a spherical cavity and a cone-shaped opening respectively defined therein, wherein the cone-shaped opening communicates with the spherical cavity. A rod has a ball member rotatably received in the spherical cavity and a golf ball disposed to a distal end thereof.

Abstract: This invention relates to a device for the teaching of golf characterized in that it includes a pedestal (1), a head (2) mounted on said pedestal (1), said head (2) having a face (3) that is essentially reversed with respect to the face of the head of a golf club, and means for indicating the strike angle (4) of said club on said head (2) that includes a disc (8) integral with said head (2) and rotatably mounted on said pedestal (1) essentially in the plane of the pedestal, said head being positioned approximately at the center of said disc, and means for the display (12) of the displacement of said disc (8) in relation to said pedestal (1) following the impact of said club on said retractable head (2). The head (2) can be fixed or movably mounted on the pedestal in such a way that it retracts under the impact transmitted by the golf club in order not to hinder the trajectory of it.

Abstract: A golf practice device having a base supporting a substantially vertical fixed shaft which supports a wheel mounted for rotation about the shaft, and a ball tethered by at least one flexible cord to the wheel. The device also includes an optical sensor which is disposed adjacent to the wheel to detect the rotation thereof and to output a signal indicative of the rate of rotation. This signal is sent to a processor which calculates the free distance of travel a real untethered ball would have traveled and outputs a signal to a display to indicate the free distance of travel to a user.

Abstract: A golf practice aid is provided including a base and a ball swinging mechanism including an arm having a first end rotatable with respect to the base about a vertical axis. The ball swinging mechanism further includes a tether cord having a top end coupled to a second end of the arm and upper and lower compartments, including a central gear and a pinion gear mounted on an elastomeric friction element located in the upper compartment. A bottom end of the tether cord is equipped with a golf ball fixed thereto.

Abstract: A golf practice device includes: a supporting base, a golf ball secured on a linking arm having a sleeve pivotally mounted on a shaft erected on the base, two rotor magnets having opposite outer magnetic poles and diametrically secured on two opposite ends of the sleeve, two stator magnets having opposite inner magnetic poles and secured on two opposite ends of a housing for surrounding the two rotor magnets for a mutual attraction between each stator magnet and each rotor magnet, a power generator having an iron core wound with coil windings on the core and surrounding the two rotor magnets for generating power due to change of magnetic field when rotating the sleeve and the two rotor magnets with respect to the iron core as driven by a hitting on the golf ball, and a display device for converting the power to an optical and audio signal for a visual and audio display for indicating the striking strength as hit by the golf player, and upon magnetic attraction between each stator magnet and each rotor magnet,