FreshPatents.com: Miscellaneous hardware - USPTO Class 016 Patent Applications Update http://www.freshpatents.com/Miscellaneous-hardware-dtnewntc016.php USPTO Class 016 - Miscellaneous hardware en-us Thu, 29 May 2008 14:19:50 -0700 1000 Wednesday Thursday Friday Saturday Sunday FreshPatents.com 141 31 http://www.freshpatents.com/index.php?rss=true http://www.freshpatents.com/images/freshpatentsnav_rss.gif Block and tackle window balance with bottom guide roller http://www.freshpatents.com/Block-and-tackle-window-balance-with-bottom-guide-roller-dt20080522ptan20080115320.php Thu, 29 May 2008 14:19:50 -0700 Disclosed are apparatus for a block and tackle window balance to be incorporated in single and double hung window assemblies. In one embodiment the block and tackle window balance includes a roller secured within a bottom guide to increase range of travel of a window sash....