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.: US12018382Application Date: 2008-01-23
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Publication No.: US07669284B2Publication Date: 2010-03-02
- 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
- US20080115320A1 Block and Tackle Window Balance with Bottom Guide Roller Public/Granted day:2008-05-22
Information query
