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US 3,994,495 AGranted
Tennis racket
OwnerRobert W. Stoffelinventor
Life of this patent
Estimating the term…
Abstract
A tennis racket having adjustable, resilient means between the handle and the head for reducing arm and elbow shock to the user. The netting is formed by individual lengths of string each having its ends connected to the frame by ferrules. Each string is tensioned in the frame by hand-operated torsion pliers adapted to adjust the tension of the string as it is connected to the frame.
Claims8
A tennis racket for use in striking a ball, comprising:
- a head having a netting opening;
- a netting mounted in said netting opening;
- a handle;
- an elongated resilient shaft having one end connected to the head and its opposite end connected to the handle such that the head is spaced from and moved in a lateral direction with respect to the longitudinal axis of the handle as the netting is being struck by a ball;
- and
- an adjustable member movably mounted on the shaft between the head and the handle, and means for locking the adjustable member in a selected longitudinal position along the shaft such that lateral motion of the head with respect to the handle depends upon the position of the adjustable member along the shaft.
3 more elements
In combination:
- a tennis racket having a head defining an opening for supporting a netting suited for striking a tennis ball;
- the head having a plurality of string-receiving openings in aligned pairs on opposite sides of the head;
- a string having a first end disposed in a first opening of an aligned pair of string-receiving openings, and means connecting said first end to the head;
- said string-having its opposite end passing through the second opening of said aligned pair of string-receiving openings;
- a ferrule disposed in said second opening and engaged with the string, the ferrule being movable toward a position for wedging the string in said second string-receiving opening;
- a tube having one end disposed on the ferrule;
- plier means including a first plier member mounted on the opposite end of the tube and a second plier member pivotally connected to the first plier member;
- and
- means connecting the string to the second plier member such that as it is being moved away from the tube to place the string under tension, the first plier member urges the tube toward the ferrule and its wedging position.
6 more elements
Dependencies are inferred from the claim text.