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US 5,027,557 AGranted
Sound silenced window frame jamb liner sash guide pocket
AssigneeIntek Weatherseal Products, Inc.
InventorMichael M. May
Life of this patent
Estimating the term…
Abstract
Disclosed is a sound silenced window frame jamb liner sash guide pocket. A layer of resilient material is coextruded with the material of the jamb liner to provide reverberation dampening of a window sash spring balance located within the jamb liner sash guide pocket.
Claims7
A sound silenced window frame jamb liner sash guide pocket comprising inner surfaces for guiding a spring balanced window sash along a vertical axis of a jamb liner, comprising:
- a) a window frame jamb liner sash guide pocket comprising inner surfaces for guiding a spring balanced window sash along a vertical axis of the jamb liner;
- and
- b) a layer of resilient material attached to portions of the jamb liner sash guide pocket inner surfaces for providing sound silencing surfaces against which the window sash spring balance may contact substantially independent of any reverberation sound being transmitted external of the jamb liner sash guide pocket.
Dependencies are inferred from the claim text.