String pulling head structure of a racket stringer

Details String pulling head structure of a racket stringer String pulling head structure of a racket stringer

2006-12-05

2006-12-05

Chiu, Raleigh W. (Department: 3711)

Games using tangible projectile

Player held and powered, nonmechanical projector, per se,...

Racket or paddle; accessory therefor

Reexamination Certificate

active

07144342

ABSTRACT:
A string pulling head structure of a racket stringer, including a first string chuck and a second string chuck fixed with each other and a first chucking plate and a second chucking plate disposed between the first and second string chucks. Each of the opposite faces of the first and second string chucks and the first and second chucking plates is formed with two parallel slots. An antiwear slat is disposed on one side of each of the slots to serve as the bottom of the slot. The slats are inclined by equal inclination angle but in reverse direction, whereby the depths of two ends of the slots are unequal to each other.

REFERENCES:
patent: 4125259 (1978-11-01), Halbrook
patent: 4491322 (1985-01-01), Heilman
patent: 5733212 (1998-03-01), Wise et al.
patent: 6227990 (2001-05-01), Wise et al.

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