US Patent # 7159850** IMPORTANT-- This model is now discontinued. Please view our videos of the AIR STAIR STRETCHER and JUNIOR AIR STRETCHER for new models. Also look for our new AIR STRETCHER model in 2008.An overview of the Carpet Air Stretcher. The carpet air stretcher uses patented technology to bring the installation of carpet into the 21st century. In Part Twp of the video the inventor of the Carpet Air Stretcher demonstrates the installation process. air, carpet, floor, flooring, install, kicker, pneumatic, stretcher, tool