Window Vent Stop with Flexible Side Engagement Pieces

A vent stop, for use in an opening of a stile of a sash window, for which the stile is formed with any one of a plurality of different thicknesses, said vent stop comprising:

• a housing having a first end and a second end, said housing comprising:
• a top plate and one or more walls, said one or more walls joined to and extending from a bottom surface of said top plate to create a cavity;
• at least a portion of said top plate configured to overhang beyond at least a portion of said one or more walls to create a lip, said top plate comprising an opening into said cavity;
• a tumbler pivotally mounted in said housing cavity and configured to pivot outwardly from a retracted tumbler position into extended tumbler position, said extended position being a position where a portion of said tumbler protrudes out said opening in said top plate:
• a spring configured bias tumbler toward said extended tumbler position;
• a first clip configured to secure said first end of said housing to a first end of the opening in the window stile;
• said first clip configured to cantilever away from a position on said first end of said housing, said position on said housing being distal from said top plate, and said first clip configured to cantilever in a direction generally toward said lip said of said top plate, to be at an angle with respect to said first end of said housing when in an extended clip position, and to be flexible with respect to said housing, to resiliently flex from said extended clip position into a retracted clip position where a distal end of said first clip is proximal to said housing;
• said distal end of said first clip comprising a selectively shaped engagement surface;
• said first clip configured to flex into said retracted clip position when inserted in the opening of the window stile, and to flex back toward said extended clip position when installed therein for said selectively shaped engagement surface to occupy an engagement position, to an interior edge of a first end of the opening in the window stile, according to a thickness of the stile, to secure said first end of said housing to the stile;
• wherein said first clip is configured to be engaged at a first position on said selectively shaped engagement surface by the interior edge of the first end of the opening in the window stile, when the stile is a first thickness;
• and wherein said first clip is configured to be engaged at a second position on said selectively shaped engagement surface by the interior edge of the second end of the opening in the window stile, when the stile is a second thickness;
• and
• a second clip configured to secure said second end of said housing to a second end of the opening in the window stile;
• said second clip configured to cantilever away from a position on said second end of said housing, and to be formed thereat to be substantially symmetric with said first clip;
• wherein said second clip is configured to be engaged at a first position on said selectively shaped engagement surface of said second clip by the interior edge of the second end of the opening in the window stile, when the stile is the first thickness:
• and wherein said second clip is configured to be engaged at a second position on said selectively shaped engagement surface of said second clip by the interior edge of the second end of the opening in the window stile, when the stile is the second thickness.