Device and method for improving the installation of...

Details Device and method for improving the installation of... Device and method for improving the installation of...

2009-02-25

2011-11-22

Miller, William L. (Department: 3677)

Miscellaneous hardware (e.g., bushing, carpet fastener, caster,

Sash balances

Spring

C049S445000

Reexamination Certificate

active

08060984

ABSTRACT:
The present device is an extender for pretension spiral rod window balances. The spiral rod extender is attached to the end of the spiral rod by the window or balance manufacturer. At the window manufacturer, the sash is installed into the window frame and the balance is inserted into one of the jamb channels. A hook tool, having a hooking element at one end, is used to grab onto a hole in the end of the spiral rod to pull it a sufficient amount out of the containment tube. The hook tool manipulates the spiral rod so that a sash hook mounted on the balance engages a ledge at the end of the sash, thereby securing the balance to the sash. The spiral rod extender is then removed from the spiral rod and may be reused by the balance manufacturer or discarded as desired.

REFERENCES:
patent: 2825089 (1958-03-01), Larson et al.
patent: 3070831 (1963-01-01), Larson
patent: 4332054 (1982-06-01), Paist et al.
patent: 5267416 (1993-12-01), Davis
patent: 6115884 (2000-09-01), DeJong et al.
patent: 6148700 (2000-11-01), Upholz
patent: 6948215 (2005-09-01), Malek et al.
patent: 2010/0212463 (2010-08-01), Kellum, III
patent: 2379237 (2003-03-01), None

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