发明名称 Spring balance assembly
摘要 The present invention provides a spring balance assembly for use with a sash window. The spring balance assembly comprises a plate, clip, pivot brake assembly, and first and second coil springs. The plate has a first portion, second portion, and a generally perpendicular transition portion thereby defining a cavity proximate the first portion. The cavity accommodates hardware mounted to the sash window during sliding movement of the sash window. The first coil spring is rotatably supported on a first spool and the second coil spring is rotatably supported on a second spool. A lower end of the first spring is connected to an attaching element of the clip. A lower end of the second spring is connected to a first wall of the pivot brake assembly and the clip is connected to the first wall to secure the first and second springs to the pivot brake assembly.
申请公布号 US2004006845(A1) 申请公布日期 2004.01.15
申请号 US20020194445 申请日期 2002.07.12
申请人 POLOWINCZAK ALLEN D.;MURPHY MARK V.;PRETE JAMES G. 发明人 POLOWINCZAK ALLEN D.;MURPHY MARK V.;PRETE JAMES G.
分类号 E05D15/22;E05F1/16;(IPC1-7):E05F1/00 主分类号 E05D15/22
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