Tennis racket string tension tester

Details Tennis racket string tension tester Tennis racket string tension tester

1987-05-04

1989-01-03

Rueml, Charles A.

Measuring and testing

Dynamometers

Responsive to force

7386248, G01L 506, G01L 510

Patent

active

047948051

ABSTRACT:
A device for testing string tension in the stringing of a tennis racket of simplified construction as compared to prior art devices. The device comprises only five component parts, and occupies a minimum amount of storage space when not in use. Provision is made in several embodiments for including in measurement that component of tension which is caused by slight flexing of the tennis racket frame, and components of frictional force caused by engagement of the device with the tennis racket are completeley eliminated.

REFERENCES:
patent: 4055999 (1977-11-01), Cope
patent: 4077256 (1978-03-01), Hollander
patent: 4103546 (1978-08-01), Hickey et al.
patent: 4116054 (1978-09-01), Howe
patent: 4488444 (1984-12-01), Weidmann et al.
patent: 4590808 (1986-05-01), Lightfoot et al.

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