Glass Donates Invention to Tennessee Tennis
TNT Gauge

Oct. 6, 2011

Last week, local inventor David Glass formally presented Tennessee men's head coach Sam Winterbotham and women's co-head coaches Mike Patrick and Sonia Hahn-Patrick with new Tennis Net Tension (TNT) Gauges for Tennessee's 12 courts.

A Knoxville-area resident, Glass developed the idea and a prototype before testing his product at the University of Tennessee. The TNT Gauge, which attaches to the net post and measures net tension accurately within 2 percent, was used on a trial basis in practices and matches last season.

"I developed it here at UT," said Glass, who earned his degree in engineering at Tennessee. "The coaches and staff have been so cooperative. They just basically gave me a key to the building and told me to turn the lights off when I go home."

Tennessee is one of only two facilities to have gauges on every court, joining the Linder Family Tennis Center in Cincinnati. Those courts are home to the Western & Southern Open, which is one of the largest combined men's and women's professional tournaments on the calendar.

The TNT Gauge was used in four events of this summer's U.S. Open Series, and tested in competition at the U.S. Open.

After its start on the courts of Goodfriend Tennis Center, the TNT Gauge became an internationally tested tool within a matter of months. Last month, the gauges were installed at the Malaysian Open in Kuala Lumpur, a men's tour event, and will be evaluated in Asia and Europe for the remainder of the year.

The TNT Gauge is explained and pictured at





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