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Document Title |
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7252606 |
Clamping device for clamping strings of stringing machine for sport rackets
A clamping device for stringing machine includes a slide member, a positioning device, a control device and a rail. The positioning device and a tube are located on two ends of the slide member. An...
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6984185 |
Device for gut stringing
A device for easily and efficiently replacing the gut ( 1 ) of a racket, comprising a mechanism ( 11, 12 ) for clamping a frame (F) at least at one position and a tension head (H) for holding a...
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6764418 |
Stringer of a racket
A racket stringer includes a work table, and two opposite fixing devices each mounted on the work table and each including a rack, a guide plate, two foot posts, a support shaft, and a press rod....
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6712723 |
Tennis racket stringing machine
Disclosed is a tennis racket stringing machine. The machine comprises racket fastening means including a lower supporting plate on which a head frame of a tennis racket is seated to be securely...
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6583590 |
String drawing device for a racquet
A string drawing electrical device for a racquet has a casing, a string holder, an actuating device and a control unit. The string holder is rotatably attached to a panel of the casing. The...
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5820500 |
Non-rotating racquet and stringing machine and method
A racquet stringing machine which accomplishes tensioning of the strings of a racquet by the use of one or more combination tensioning and holding clamp units which operate directly on the string...
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5590877 |
Racket string bracing apparatus
A racket string bracing apparatus including a base having a column sleeve at one end and a U-shaped upright support at an opposite end, a work table turned about the column sleeve, internal racket...
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5568921 |
Racquet stringing machine
An improved racquet stringing machine having a new table featuring a built-in glide bar groove, an improved string clamp, a new tip riser having integrated, threaded height adjustment, an...
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5338028 |
Racket stringing apparatus
A racket stringing apparatus includes a frame unit, a racket retaining device and a string tautening device. The string tautening device includes a string clamping unit, a swing lever and a...
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5299462 |
Racquet string actual tension measuring device
A method for measuring the actual tension in an elastic string such as in a strung racquet. The method comprises holding one length of string (42) substantially a constant length, and measuring the...
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5269515 |
Machine for stringing game racket
A game racket stringing machine comprises a machine body and a string-pulling gear. The machine body has a base comprising a main rod and two secondary rods which are pivoted respectively to the...
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5186459 |
Process for stringing rackets for ball games and a device for carrying out the process
Described is a process for stringing rackets for ball games, in particular tennis, with individual strings, and a tensioning device which is suitable for that purpose. Instead of the individual...
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5080360 |
Equipment for stringing a tennis racket
Racket stringing equipment having movable jaws, for holding the racket on the stringing cradle as the racket is strung, includes profiled gripping jaws to bring the string mesh plane of the racket...
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4864875 |
Digital electronic calibrator for tennis racket stringing machines
A device for checking the calibration of tennis racket stringing machines, having an input rod to which a non-stretch cable is attached for attaching to the tension head of a stringing machine, a...
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4491322 |
Tensioning apparatus for a racket-stringing machine
A racket-stringing machine equipped with tensioning apparatus featuring a one-way clutch which eliminates the need to pull tension more than once per reach of string on the racket. The tensioning...
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4456254 |
Apparatus for stringing a racquet
An apparatus for tensioning a pre-strung web onto a racket characterized by an elongated base supporting a pair of carriages for reciprocal, colinear movement. A plurality of stretcher bars are...
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4439908 |
Method for stringing a racquet
A method for stringing a racquet characterized by forming a linearly expansible pre-strung web having a plurality of rows of diamond shaped interstices and then stretching said web row-by-row along...
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4417729 |
Racket stringing apparatus
A racket stringing apparatus having a racket frame clamp assembly pivotably mounted to a base. The racket frame clamp assembly includes support arms for carrying the frame clamps. The support arms...
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4376535 |
Machine for stringing rackets
The racket-stringing machine comprises a cradle for locking a racket frame in position and means for applying tension to a racket string. In order to apply tension to the string which is attached...
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4366958 |
Racket stringing machines
An apparatus for use in stringing rackets comprising a support structure including a pedestal having a base portion with a weighted foot pedal pivotally attached thereto, a racket supporting...
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4359213 |
Tension clamp for three or more direction string networks
Apparatus for clamping one string of a three or more direction oriented string network of a game racket held in a support fixture, to that support fixture. The apparatus includes a pair of jaws...
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4348024 |
Racket stringing apparatus and method
A racket stringing apparatus having an open racket head frame holding fixture and means for tensioning a string drawn across the open area of the head frame wherein the fixture is formed as an...
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4249732 |
String pre-stretching apparatus and method for racket stringing machine
A racket stringing machine having a racket head holding fixture and a carriage and string clamp mounted for reciprocation toward and away from the fixture for engaging a string drawn through a...
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4156525 |
Racket stringing apparatus
A racket stringing apparatus includes a racket support frame rotatably mounted about a vertical axis on a suitable support base and including head and handle clamps for clamping the racket in the...
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4130278 |
Racquet stringing machine
A racquet stringing machine having automatically activated locking means and an improved tension means using a free hanging weight to apply a uniform tension to a racquet string through a wheel and...
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3988022 |
Racket stringing machine
An improved apparatus for stringing rackets such as tennis rackets and the like including improved means for locking the racket against movement in different fixed positions during stringing to...
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3964291 |
Tennis racquet stringing calibrator
A calibration device is disclosed and claimed herein for determining the accuracy of a tennis racquet stringing machine. A cross member is securable in the machine in similar fashion to a racquet...
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3918713 |
Racket stringing machine
A racket stringing machine which includes a turntable for supporting the racket to be strung in a given plane, a capstan for receiving and tensioning the string being strung on the racket and a...
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3913912 |
Racket stringing apparatus
Apparatus for stringing rackets having a vertical column, a work head assembly rotatably mounted on the column on which the racket is clamped, a tensioning assembly mounted on the column for...
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3823609 |
STRING TENSIONING MECHANISM
The invention relates to racket stringing apparatus including novel means for tensioning the strings thereof during stringing of a racket frame and determining the degree of tension applied.
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3635080 |
RACKET-STRINGING MACHINE WITH AUTOMATIC LOCKING
A turntable having an upright U-shaped yoke, provided with clamps for holding a horizontally disposed racket frame at its top, is automatically locked during successive power-actuated pulls of the...
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3511502 |
MACHINES FOR THE STRINGING OF TENNIS RACKETS
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3441275 |
RACKET STRINGER
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3302950 |
Racket stringing machine
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2971760 |
Apparatus for stringing tennis rackets and the like
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2901252 |
Racket stringing device
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