Devices for determining the string tension of racket strings

Details Devices for determining the string tension of racket strings Devices for determining the string tension of racket strings

2007-05-16

2009-08-25

Smith, R. Alexander (Department: 2841)

Geometrical instruments

Miscellaneous

Light direction

C235S08800G, C473S553000

Reexamination Certificate

active

07578065

ABSTRACT:
Devices for determining the string tension of racket strings are provided. In some embodiments, devices for determining the string tension of racket strings comprise: a body having a front surface indicating different combinations of player and racket characteristics, windows corresponding to certain types of rackets, and an axis perpendicular to the front surface; and a rotary disc which is rotatably situated on the axis behind the front surface and which has numbers indicated thereon representing racket string tension values that can be viewed through the windows for the different combinations of player and racket characteristics.

REFERENCES:
patent: 2168743 (1939-08-01), Herbert
patent: 2484366 (1949-10-01), Wilson
patent: 3410482 (1968-11-01), Strum
patent: 4160327 (1979-07-01), Martin et al.
patent: 4248458 (1981-02-01), Brody
patent: D388341 (1997-12-01), Perez
patent: 6311403 (2001-11-01), Macrini
patent: 6569040 (2003-05-01), Bradstock
patent: 1857155 (2007-11-01), None

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