Patent ID: 6341449
Filing Date: 2002-01-29
Classification: E06B

Abstract:
A snap-in compression-fit custom weatherstrip system for, and in combination with, a double hung window, the weatherstrip system having an improved vertical parting stop dividing the running tracks of an upper window sash and a lower window sash of the double hung window, wherein the system comprises:a double hung window having a pair of vertical running tracks and an upper window sash and a lower window sash each capable of vertical movement within one of the pair of vertical running tracks; an improved parting stop adapted to be inserted vertically in the double hung window to replace a conventional parting stop between the running tracks of the window sashes, the improved parting stop having a top vertical groove on one side of the improved parting stop from a top end of the improved parting stop along a portion of the improved parting stop equal to the height of the top sash and a bottom vertical groove on the other side of the improved parting stop from the bottom of the improved parting stop equal to the height of the bottom sash; an elongated weatherstrip having a base with at least one resilient ridge on each of two sides of the weatherstrip running the length of the weatherstrip, the base capable of being inserted in the vertical grooves of the parting stop with a compression fit, the resilient ridges capable of compressing upon insertion in the grooves and capable of retaining the weatherstrip in the grooves with an airtight friction fit, and an air barrier material running the length of the weatherstrip along a top of the base, the weatherstrip capable of being cut into a length equal to the top vertical groove and a length equal to the bottom vertical groove, the two lengths capable of being pressed into the grooves for installation of the weatherstrip and pulled out of the grooves for removal with the improved parting stop installed in the window frame, the airtight barrier capable of preventing air from passing between the improved parting stop and each of the window sashes, the weatherstrip capable of being replaced with another weatherstrip having a different size of airtight material sufficient to fill an air gap between the improved parting stop and each of the window sashes.