US 12,409,595 B2
Sizer for an extrusion machine with improved cooling and vacuum channels
Vickram Dhanapal, Delaware, OH (US); Gary Oney, Londonderry, OH (US); Roger May, Lancaster, OH (US); and Troy Kimmes, Johnstown, OH (US)
Assigned to Engineered Profiles LLC, Columbus, OH (US)
Filed by Engineered Profiles LLC, Columbus, OH (US)
Filed on May 16, 2022, as Appl. No. 17/745,273.
Application 17/745,273 is a continuation in part of application No. 16/565,982, filed on Sep. 10, 2019, granted, now 11,331,841.
Claims priority of provisional application 62/729,789, filed on Sep. 11, 2018.
Prior Publication US 2022/0266497 A1, Aug. 25, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. B29C 48/88 (2019.01); B29C 48/09 (2019.01); B29C 48/12 (2019.01); B29C 48/14 (2019.01); B29C 48/25 (2019.01); B29C 48/30 (2019.01); B29C 48/87 (2019.01); B29C 48/90 (2019.01)
CPC B29C 48/911 (2019.02) [B29C 48/09 (2019.02); B29C 48/12 (2019.02); B29C 48/147 (2019.02); B29C 48/254 (2019.02); B29C 48/256 (2019.02); B29C 48/25686 (2019.02); B29C 48/3003 (2019.02); B29C 48/87 (2019.02); B29C 48/903 (2019.02); B29C 48/904 (2019.02); B29C 48/916 (2019.02)] 45 Claims
OG exemplary drawing
 
1. A sizer for cooling an extrudate, comprising:
a core comprising:
an extrusion channel configured to accommodate the extrudate;
a core cooling channel; and
a core vacuum channel in fluid communication with the extrusion channel;
wherein the core is comprised of a metal; and
a housing for housing the core, comprising:
a housing cooling channel in fluid communication with the core cooling channel; and
a housing vacuum channel in fluid communication with the core vacuum channel;
wherein the housing is comprised of a polymer;
wherein the housing cooling channel and the core cooling channel form a cooling pathway adapted to circulate a coolant through the sizer; and
wherein the housing vacuum channel and the core vacuum channel form a vacuum pathway adapted to transmit suction forces to the extrudate.
 
34. A method for creating a sizer adapted to cool an extrudate, comprising the steps of:
creating, from a metal, a core comprising an upper core portion and a lower core portion, each of the upper core portion and the lower core portion comprising:
an extrusion channel configured to accommodate the extrudate;
a core cooling channel; and
a core vacuum channel in fluid communication with the extrusion channel;
creating, from a polymer, a housing for housing the core, comprising an upper housing portion and a lower housing portion, each of the upper housing portion and the lower housing portion comprising:
a housing cooling channel; and
a housing vacuum channel; and
joining the upper housing portion to the upper core portion, the upper core portion to the lower core portion, and the lower core portion to the lower housing portion, to form:
a continuous cooling pathway for the circulation of a coolant through the sizer, comprising the housing cooling channel and the core cooling channel; and
a continuous vacuum pathway for the suction of the extrudate, comprising the housing vacuum channel and the core vacuum channel;
wherein the upper core portion and the lower core portion are separately formed; and
wherein the upper housing portion and the lower housing portion are separately formed.