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7454948 |
Method of measuring coefficient of dynamic friction between golf ball and collisional plate
By bringing a golf ball into collision with a collisional plate and measuring a coefficient of dynamic friction at this collision, contact force at the time of collision between an actual golf club...
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7150178 |
Golf ball COR testing machine
The present invention comprises an automated machine for testing the physical properties of spherical objects. Preferably, the apparatus comprises a firing mechanism that includes an inner and...
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7130748 |
Simulation method for estimating performance of product made of viscoelastic material
A simulation method includes the step of momently measuring a value of each of a strain, a strain speed, and a stress generated in the viscoelastic material, deriving time history data of a viscous...
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7111492 |
Device for testing balls
A ball testing device having a compact housing with a microphone for receiving the sound generated when a ball strikes a surface and generating output signals. An electrical circuit in said housing...
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6983637 |
Apparatus and method for evaluating and comparing golf club head designs based upon mass properties and impact behavior
The golf club head evaluation system provides two methods for evaluating and comparing various club head designs. Method one is a data acquisition apparatus that captures, processes, and displays...
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6925416 |
Simulation method for estimating performance of product made of viscoelastic material
A simulation method of estimating performance of a product made of a viscoelastic material, comprising the steps of measuring a value of a strain, a strain speed, and a stress generated in...
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6923039 |
Method and apparatus for testing golf balls
A method and an apparatus for measuring coefficient of restitution of an impact are disclosed. The apparatus includes a launching device, an enclosure, a second initially stationary object, and a...
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6837094 |
Portable apparatus for measuring the flexibility of a golf club head
The apparatus employs a steel impact ball which is mounted in a pendulum manner to swing against the face of a golf club head. The golf club is secured at one end to a spacer block on the base of...
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6804988 |
Golf ball COR testing machine
The present invention comprises an automated machine for testing the physical properties of spherical objects. Preferably, the apparatus comprises a firing mechanism that includes an inner and...
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6742385 |
Method for selecting a golf ball, and method and system for selecting a golf club and a golf ball
A method for selecting a golf ball suitable for a golfer, comprising the steps of (i) obtaining head speed and backspin when a golfer hits a golf ball with a golf club; (ii) obtaining from the...
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6640200 |
Sports implement testing methods and apparatus
Methods and apparatus for testing a striking-type sports implement such as a bat is disclosed. In terms of apparatus, a system according to the invention includes a bat-swinging module, a...
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6571600 |
Apparatus and method for measurement of coefficient of restitution and contact time
An apparatus and method for quantifying the stiffness of a golf ball or golf ball core under normal use conditions while also measuring the contact time, wherein an air cannon, or the like, is used...
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6132319 |
Billiard training device
A billiards training apparatus is described, the apparatus used in training a user to properly strike a cue ball. The apparatus comprises a housing having a front face, the housing coupled to a...
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5908979 |
Golf ball test hitter
The invention relates to a golf ball test hitter used for testing the performance of a golf club after manufacture of the club, which comprises a first arm corresponding a man's arm, a second arm...
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5863255 |
Device and method to measure kinematics of a moving golf ball
A device for measuring the movement of a ball is a flat pad or a frame defining an opening with one or more magnetic field inducing elements mounted thereon. One or more sensor elements are mounted...
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5763761 |
Ball striking apparatus
Generally, the invention can be used to strike an object with an implement. Two applications for which the invention is particularly useful are hitting a golf ball with a golf club, and hitting a...
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5589628 |
Golf ball striking device
A golf ball striking device has a framework with a club and shaft assembly rotatably mounted to the framework for movement along a swing path in a first vertical plane. A golf ball tee assembly is...
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5547114 |
Apparatus for breaking in athletic gloves
Apparatus for breaking in or conditioning athletic gloves, especially baseball gloves, includes a holder on which the glove can be mounted, this holder being in the semblance of a human hand, an...
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5245862 |
Ball testing device
A testing device and method for determining the coefficient of restitution of a rebounding object, such as a ball, by comparison of the bounce periods of successive bounces of the ball. The ball is...
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4996867 |
Golf club swinging apparatus
This invention is concerned with a golf club swinging apparatus for testing performance of golf clubs, for example. The golf club swinging apparatus is capable of swinging a golf club from an...
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4876658 |
Method and apparatus for systematically testing objects including tennis balls
A computer-controlled object testing and measuring apparatus having a plurality of stations including a control center for initiating, controlling and terminating each procedure at each station....
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4509362 |
Device for testing game balls
A device is disclosed for testing the resilience of a game ball. The device comprises a tubular member having an opening at one end for receiving a game gall to be tested. A striking surface on the...
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4062222 |
Golf club swinging apparatus
A golf-club and golf-ball testing apparatus, having a crank arm driven by a main drive shaft, drives a club swinging arm through a secondary drive shaft supported by bearings on the end of the...
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4006626 |
Method and apparatus for evaluating rebounding characteristics of objects
A performance method and apparatus for evaluating the bouncing or rebounding characteristics of objects such as balls used in games, and for evaluating the energy-absorbing and surface...
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3855842 |
APPARATUS FOR TESTING GOLF CLUBS
An apparatus for testing the dynamic performance of a golf club by simulating human golf swings including an arm driven by a first motor for simulating the rotation of the golfer's arms about his...
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3777548 |
GOLF BALL TESTING AND DEMONSTRATING APPARATUS
A golf ball testing and demonstrating apparatus in which a projectile having a ball striking forward face thereon is propelled through the barrel by pressurized gas released from a chamber at the...
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3643959 |
GOLF GAME
The invention is a device for measuring the flight characteristics of a golf ball hit in the ordinary manner by a golfer from a stationary tee against a prepositioned target. The self-healing...
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3509736 |
APPARATUS FOR TESTING IMPACT REACTION OF RESILIENT BODIES
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3496765 |
BALL TESTING DEVICE
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3364751 |
Golfing target and golf ball spin detecting apparatus
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3299692 |
Velocity measuring and segregating device for propelled articles
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3093995 |
Apparatus for measuring the coefficient of restitution of a resilient body
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