http://www.freshpatents.com/Friction-gear-transmission-systems-or-components-dtnewntc476.php USPTO Class 476 - Friction gear transmission systems or components en-us Mon, 9 Jan 2012 13:33:06 -0800 1000 Wednesday Thursday Friday Saturday Sunday 141 31 http://www.freshpatents.com/index.php?rss=true http://www.freshpatents.com/images/freshpatentsnav_rss.gif http://www.freshpatents.com/-dt20120105ptan20120004072.php Mon, 9 Jan 2012 13:33:06 -0800 A friction gearing has housing and a unit housed in the housing, the unit including a first roller, a second roller and rotatable support plates. The first roller and the second roller are in frictional engagement with each other under a radial pressing force. The radial pressing force is variable...