Block and tackle window balance with bottom guide roller

Invention Grant

US06598264B2 Block and tackle window balance with bottom guide roller 有权

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Patent Title: Block and tackle window balance with bottom guide roller
Application No.: US09810868

Application Date: 2001-03-16
Publication No.: US06598264B2

Publication Date: 2003-07-29
Inventor: Gary Roger Newman
Applicant: Gary Roger Newman
Main IPC: E05D1300
IPC: E05D1300

Block and tackle window balance with bottom guide roller

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

US20020129463A1 Block and tackle window balance with bottom guide roller Public/Granted day:2002-09-19

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