When the air conditioner caught fire three years ago, Kate Khosla thought it was time to pull the plug — literally — on her husband Ron’s efforts to invent a better compressor-condensor-evaporator.

Khosla’s idea was simple: he thought he could build a gizmo that would allow an ordinary air conditioner to take a room’s temperature down as low as 32 degrees. Not all of his prototypes blew up, but neither did any of his early models last long enough to get the job done.

You could find Khosla juggling about a dozen small boxes at the New Paltz post office, sending his patent-pending CoolBot to farmers like himself. With next to no publicity or marketing, the CoolBot is becoming a very hot item. And it’s poised to go more places than the farm. He’s sold about 80 units at $250 a pop and has placed material orders that will allow him to build another 500.

It’s all a marvel to Khosla, who calls himself a “reluctant capitalist” who never intended to sell his invention. He’d thought initially to explain the process to other farmers and let them build their own. That idea didn’t work out, but the Khoslas don’t seem too broken up about it.

Times Herald-Record