Patent Number: 6,167,657

Title: Weatherstrip product formed by sequential extrusion of cellular and non-cellular plastic resins

Abstract: An extrusion product or profile is formed by extrusion of a cellular compound to form a base and then subsequent extrusion of a non-cellular compound to form an attached flexible strip. The final product or profile is used as a garage door weatherstrip in which the cellular base is mounted against the door jamb and the strip of flexible non-cellular material extends out from the cellular base to prevent the flow of air through openings between doors and adjacent jambs or frames. The process for forming such a product involves sequential extrusion of the two portions of the product. First, a cellular base is extruded through a die and vacuum sizer and allowed to cool. Next, a saddle die is used to apply the flexible non-cellular strip to a portion of the cellular base.

Inventors: Burge; Gary (Hewitt, TX), Pauley; Robert (Troutdale, VA)

Assignee: Marley Mouldings, Inc.

International Classification: B29C 44/00 (20060101); B29C 44/22 (20060101); B29C 47/06 (20060101); B29C 44/56 (20060101); B29C 44/34 (20060101); B29C 47/02 (20060101); E06B 7/23 (20060101); E06B 7/22 (20060101); E06B 007/232 (); B29C 047/00 (); B29D 007/00 ()

Expiration Date: 01/02/2018