Patent · US Active

Locking balance shoe and system for a pivotable window

US9580950B2 · kind B2 · utility

14Cited by

82References

45Claims

0Family size

Assignee

Amesbury Group, Inc. · US

Inventors

Stuart J. Uken · Sioux Falls, US
Gary Newman · Knoxville, US
Lawrence J. VerSteeg · Sioux Falls, US

Key dates

Filing date	Jan 17, 2007
Grant date	Feb 28, 2017
Priority date	—
Expiry date	Jan 24, 2027

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE06B3/5063
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

Locking balance shoes and balance systems to be incorporated in pivotable double hung windows include, in one embodiment, a pair of retractable tabs that partially extend through openings within an inverted window balance. In one embodiment of the method of installing such a system, an enlarged portion of the balance shoe is inserted into a window jamb and then rotated into position.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.