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Tony Curtis

From tiny start, mat-maker becomes industry power

AUSTIN, Texas After installing a new tile floor in their kitchen, Robb and Lisa McMahon realized there was a problem. "I love cooking, but standing on that tile for any extended period of time made my legs and back hurt," Lisa McMahan said. "I told Robb, 'This floor looks great, but it's killing me.'" They tried using various foam floor mats, but the mats were cheaply made, had an unpleasant rubber odor and did little to relieve pain. For Robb McMahan, an engineer who previously designed wheelchairs and hospital beds for a medical device company, creating a better mat became an obsession. "We wanted to come up with something that looked good,...