US 11,969,930 B2
Extrusion process and assembly for producing a roof ditch molding having a bright film exterior layer
Timothy John Brown, Bruce Township, MI (US); Kevin Charles Baxter, Goodrich, MI (US); and Gerald N. Strich, North Branch, MI (US)
Assigned to Bank of America, N.A., As Administrative Agent, Dallas, TX (US)
Filed by U.S. Farathane Corporation, Auburn Hills, MI (US)
Filed on Nov. 18, 2021, as Appl. No. 17/529,488.
Application 17/529,488 is a continuation in part of application No. 17/186,271, filed on Feb. 26, 2021.
Claims priority of provisional application 63/118,076, filed on Nov. 25, 2020.
Claims priority of provisional application 62/989,973, filed on Mar. 16, 2020.
Prior Publication US 2022/0072754 A1, Mar. 10, 2022
Int. Cl. B29C 48/21 (2019.01); B29C 48/00 (2019.01); B29C 48/12 (2019.01); B29C 48/88 (2019.01); B29K 23/00 (2006.01); B29L 31/30 (2006.01); B60R 13/04 (2006.01)
CPC B29C 48/21 (2019.02) [B29C 48/0013 (2019.02); B29C 48/022 (2019.02); B29C 48/12 (2019.02); B29C 48/911 (2019.02); B29K 2023/12 (2013.01); B29L 2031/3011 (2013.01); B60R 13/04 (2013.01)] 8 Claims
OG exemplary drawing
 
1. An extrusion process for creating a roof ditch molding, comprising the steps of:
forming a main body from a plastic material in a first stage extrusion;
conveying the main body through a stacked array of die plates and into a first stage cooling tank;
communicating the main body from an outlet of the first stage cooling tank to a second stage extruder with crosshead die for applying a skim film bonding layer to the main body;
applying a decorative layer over the skim bonding layer;
communicating the main body to a third stage extruder with cross head die for applying wing portions in partially overlapping fashion along opposite side edges of the decorative layer; and
drawing the completed ditch molding through a second stage cooling tank prior to conducting one or more finishing operations.