公开(公告)号：US20110302742A1

公开(公告)日：2011-12-15

申请号：US13217889

申请日：2011-08-25

Applicant: Gary Roger NEWMAN

Inventor： Gary Roger NEWMAN

IPC: E05D13/00

CPC classification number: E05D13/04 ,  E05D13/1207 ,  E05D15/22 ,  E05Y2201/67 ,  E05Y2900/148 ,  Y10S16/16 ,  Y10T16/6298 ,  Y10T16/635 ,  Y10T16/64 ,  Y10T16/698 ,  Y10T16/84

Abstract: 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.

Abstract translation: 公开了一种用于块和滑动窗平衡的装置，其被并入单和双悬挂窗组件中。 在一个实施例中，块和滑车窗平衡包括固定在底部导向器内的辊，以增加窗扇的行进范围。