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| Number | Title | Issue Date |
| 8137207 | Golf swing practice apparatus A golf swing practice apparatus is provided including a rotating drum, a plurality of laser generating means mounted on the rotating drum, an elongated cord including a proximal end secured to the rotating drum and a distal end secured to a golf ball whereby the gol... | 03/20/2012 |
| 7850535 | Tethered ball game having targets and indicators The embodiments may relate to games or sports using tangible projectiles. A tethered ball game embodiment may include a play ball and a tether that may be connected to the play ball and a sensor head assembly. The tether may be elastic. The sensor head assembly may ... | 12/14/2010 |
| 7214136 | Method and apparatus to practice golf swing An apparatus and method are provided for practicing a golf swing. The apparatus includes a rotationally mounted golf ball, the movement of which is slowed by movement of a piston against a spring and through a liquid. A valve mechanism incorporated in the apparatus ... | 05/08/2007 |
| 7192359 | System, computer program product and method for recording and analyzing performance data A system, a computer program product and a method for registration and analysis of data from a practised stage, and for generation of action programs in dependence of said data. Preferably, the system and the method are adapted for the analysis of the player propert... | 03/20/2007 |
| 7175536 | Apparatus and method for inputting coordinate information to a computing device An input device apparatus for providing coordinate data indicative of the motion of an object to a computing apparatus, includes an elongated member translatable along and rotatable about a longitudinal axis, a swing arm attached to the object and to the elongated m... | 02/13/2007 |
| 7171330 | Rotation and/or tilt angle detection means for a ball and socket joint A rotation and/or tilt angle detection device for a ball and socket joint is provided wherein at least one magnet (2), especially a permanent magnet, is arranged in the joint ball (1a), wherein a display device (4) displays the magnetic f... | 01/30/2007 |
| 7041016 | Volleyball spiking training system A volleyball training apparatus is disclosed that generally includes a standard assembly, a support assembly mounted on the standard assembly, a ball assembly, and a ball suspension assembly mounted on the support assembly and supporting the ball assembly. The ball ... | 05/09/2006 |
| 7040997 | Golf practice system An apparatus to be used to practice golf shots in limited space. A golf ball is tethered to one end of a line and the other end of the line is secured to a support which is calibrated to indicate the distance the ball would have traveled, when struck by a golf club,... | 05/09/2006 |
| 6786831 | Golf practicing device having automatic restoring function 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 ... | 09/07/2004 |
| 6671642 | Method of evaluating energy loss of golf ball At step 1, a golf ball model is divided into a large number of elements composed of a large number of nodal points in the form of meshes; a physical property of a material for the golf ball is inputted; a simulation is executed by an analysis based on a f... | 12/30/2003 |
| 6579191 | Laser putter device The present invention entails a laser guided golf putting system. A laser is mounted into a golf ball mechanism. The golf ball mechanism is comprised of a golf ball mounted on a shaft and supported by a support ball. When a golfer strikes the golf ball, t... | 06/17/2003 |
| 6425830 | Golf swing practicing device 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... | 07/30/2002 |
| 6348007 | Golf cart location display device A golf cart control and monitoring system on a golf course including a plurality of sensors arranged along a golf cart path at locations corresponding to at least a teeing ground, a fairway, and a putting green of each hole of the golf course in which eac... | 02/19/2002 |
| 6257989 | Method and apparatus for estimating practice golf shot distance and accuracy Disclosed is a method and apparatus for estimating practice golf shot deviation and distance. The apparatus includes a base, an axle mounted to the base, a golf ball attached to the axle and a sensor coupled to the axle for determining motion thereof. Whe... | 07/10/2001 |
| 6254491 | Golf practicing device 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 exte... | 07/03/2001 |
| 6186908 | Retrieval apparatus for operation-management system of golf links and retrieval method therefor A retrieval apparatus for operation-management system of golf links and method therefor are, herein, disclosed. LED which is constructed as a display means of measurement results by a sensor is turned on in a given color on the basis of sensor ID detected... | 02/13/2001 |
| 6146283 | Golf putting training device A golf training device is provided to assist a golfer in practicing their respective putting stroke by accurately indicating the distance a practice putt would have traveled upon a simulated green having a selected stimp value. The golf training device in... | 11/14/2000 |
| 5997405 | Golf practice device 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 wh... | 12/07/1999 |
| 5957781 | Tethered-ball training device A tethered-ball training device used for repetitive training exercises in a variety of sports. The tethered-ball trainer has a ball support means, a retraction means, and a ball. The retraction means is mounted on the support and the tether connects the r... | 09/28/1999 |
| 5926780 | System for measuring the initial velocity vector of a ball and method of use A system 20 for measuring the initial velocity vector of a ball 500 includes a first light sensing array 24, a first light source 28, a second light sensing array 30, and a second light source 32. The ball 500 has an initial position 22. When the ball 500... | 07/20/1999 |
| 5672115 | Golf swing training device and method The golf swing training device includes a position sensing unit, a tee mounted on a tee platform and a visual and audio response unit. A taut, movable cord is attached to the hip of the golfer and to the position sensing unit. The position sensing unit ge... | 09/30/1997 |
| 5586940 | Golf practice apparatus Golf practice apparatus utilizing a tethered golf ball wherein the kinetic energy is dissipated when the ball is struck. Initial velocity vectors in the x, y, and z coordinates are derived by time integrating the respective forces over the period of time ... | 12/24/1996 |
| 5513847 | Magnetically restored golf practice device with visual and audio display 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 end... | 05/07/1996 |
| 5480141 | Hitting practice apparatus A hitting practice apparatus consists of a stand which supports a telescoping tower of adjustable height. The tower in turn supports a horizontal support arm, upon which a oval-shaped rotation element is pivotally mounted. A ball suspension cable is conne... | 01/02/1996 |
| 5454561 | Tethered baseball batting practice apparatus A tethered ball for practice batting and increasing the distance a ball player is capable of batting a ball is provided by a standard vertically adjustably supporting, at its upper end portion, a laterally projecting arm journaling a hub supporting one en... | 10/03/1995 |
| 5431404 | Practice golf ball driver The present invention is a portable mechanism utilized to practice a golf swing. It includes a golf ball connected to a tethering line. When the golf ball is driven or otherwise projected a substantial distance, a spindle freely pays out the tethering lin... | 07/11/1995 |
| 5401018 | Baseball simulation game An arcade game simulating a baseball game. A player hits a ball suspended in front of him or her at a known initial position towards a detector assembly, such as an x-y grid of light beams. The initial velocity of the ball is accurately determined by calc... | 03/28/1995 |
| 5255920 | Training device for golfers A relatively inexpensive compact golf training system with digital readouts of the theoretical carry and the distance to the right or left, from a straight drive, caused by either a slice or hook. The system is battery powered, portable and can be used in... | 10/26/1993 |
| 5251903 | Ball with grip pressure indicator The present invention is a pressure indicating ball for training baseball or softball pitchers. The ball contains a mass/weight control material to give the ball the proper heft. The ball has a perimeter envelope fillable by means of a valve located on a ... | 10/12/1993 |
| 5178393 | Method and apparatus for measuring golf driving distance A method and apparatus for the measurement of the driving distance of a golf swing by measuring the initial velocity of a golf ball tethered by a string to a rotating axle.... | 01/12/1993 |
| 5121923 | Golf training device A golf training device comprising a vertical stand projecting up from a playing surface, a horizontal arm projecting from the stand, an elongate connector part rotatably carried by and projecting radially from the arm on a central radial turning plane con... | 06/16/1992 |
| 5042814 | Instructional ball hitting device The present invention is directed to an instructional ball hitting device which is designed to actively train the golfer to properly execute portions of his swing. According to one embodiment of the present invention, a ball support in the form of a golf ... | 08/27/1991 |
| 5035432 | Golf game A golf game comprises a base which is formed as a ramp covered with a carpet to simulate the green of a golf course. A ball is tethered by means of cord to the control stick of a joystick controller. A "pull-to-close" switch is incorporated in the cord so... | 07/30/1991 |
| 4993709 | Ball game apparatus A ball game apparatus includes a loosely put-up net, an elastic cord one end of which is connected to a fixed frame of the net and the other end of which is connected to a ball, and a target, located behind the net, for outputting ball speed and hit signa... | 02/19/1991 |
| 4861035 | Golf practice apparatus Golf practice apparatus is described in which a tethered ball is suspended below a support portion. This may be a right-angled stake or a vertical wood portion on a flat wooden base portion. Two electrical contact members are mounted above the golf ball s... | 08/29/1989 |
| 4848769 | Golf game apparatus A golf game device comprises a base unit side to carry a simulated ball and provide a horizontal pad section simulating a driving surface. A stant unit is sized to receive the feet of the golfer in this stance when the base unit is positioned to one side ... | 07/18/1989 |
| 4125230 | Golf ball retrieval apparatus Golf ball retrieval apparatus characterized by reduced drag on the ball after it is driven from the apparatus, is disclosed. The apparatus includes a base, a take-up reel driven by a selectively actuatable reel motor connected to the base and adapted to d... | 11/14/1978 |
| 4085935 | Amusement device A device for practicing repetitive striking movements which is eminently suitable for golf putting practice. The device when for golf comprises a ball mounted on a platform in front of a slot and a hole. Accurate striking of the ball along the correct lin... | 04/25/1978 |
| 3972532 | Putting practice device This invention comprises a Putting Practice Device including a support having a simulated golf ball mounted for limited movement thereon between operative and operated positions. Right and left putter contactors are mounted on said support on opposite sid... | 08/03/1976 |
