Invention Grant
- Patent Title: Block and tackle window balance with bottom guide roller
- Patent Title (中): 用底部导向辊阻挡和解决窗户平衡
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Application No.: US11604517Application Date: 2006-11-27
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Publication No.: US07353567B2Publication Date: 2008-04-08
- Inventor: Gary R. Newman
- Applicant: Gary R. Newman
- Applicant Address: US MA Amesbury
- Assignee: Amesbury Group, Inc.
- Current Assignee: Amesbury Group, Inc.
- Current Assignee Address: US MA Amesbury
- Agency: Goodwin Procter, LLP
- Main IPC: E05F1/10
- IPC: E05F1/10
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.
Public/Granted literature
- US20070067952A1 Block and tackle window balance with bottom guide roller Public/Granted day:2007-03-29
Information query
