Adjustable tension stringed racquet

Details Adjustable tension stringed racquet Adjustable tension stringed racquet

2005-10-18

2005-10-18

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

06955618

ABSTRACT:
A stringed racquet includes a built-in, user-adjustable mechanism for changing the tension of the strings. The user-adjustable mechanism is disposed in a cavity within the handle of the racquet, and includes a mandrel over which at least some of the vertical strands of string are looped. A wishbone bracket secured to the mandrel is axially adjustable within the handle to raise or lower the tension in the vertical strands looped over the mandrel, after which the tension becomes evenly distributed over the entire string.

REFERENCES:
patent: 2089118 (1937-08-01), Fritsch
patent: 4203597 (1980-05-01), Reedhead et al.
patent: 4322076 (1982-03-01), Bertram et al.
patent: 4613138 (1986-09-01), Haythornthwaite
patent: 4754968 (1988-07-01), Fischer
patent: 4765621 (1988-08-01), Game
patent: 5919104 (1999-07-01), Mortvedt et al.
patent: 6796916 (2004-09-01), Filippini
patent: 6852048 (2005-02-01), Filippini

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