US 12,257,750 B2
Molded article with selectively varied core layer geometry and hot runner nozzles for producing same
Jean-Christophe Witz, Yutz (FR); Christophe Simone Pierre Beck, Terville (FR); Joachim Johannes Niewels, Thornton (CA); and Lee Richard Riddle, Palgrave (CA)
Assigned to Husky Injection Molding Systems Ltd., Bolton (CA)
Filed by Husky Injection Molding Systems Ltd., Bolton (CA)
Filed on Oct. 31, 2023, as Appl. No. 18/498,127.
Application 18/498,127 is a division of application No. 16/623,145, granted, now 11,850,779, previously published as PCT/CA2018/050756, filed on Jun. 21, 2018.
Claims priority of provisional application 62/523,875, filed on Jun. 23, 2017.
Prior Publication US 2024/0059000 A1, Feb. 22, 2024
Int. Cl. B29C 45/27 (2006.01); B29B 11/08 (2006.01); B29B 11/14 (2006.01); B29C 45/16 (2006.01); B29K 67/00 (2006.01); B29L 31/00 (2006.01)
CPC B29C 45/27 (2013.01) [B29B 11/08 (2013.01); B29B 11/14 (2013.01); B29C 45/1684 (2013.01); B29C 2949/3014 (2022.05); B29C 2949/3018 (2022.05); B29C 2949/3028 (2022.05); B29C 2949/3036 (2022.05); B29K 2067/003 (2013.01); B29L 2031/7158 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A hot runner nozzle for conveying melt to a mold cavity, the hot runner nozzle comprising:
an inner nozzle insert defining an inner flow channel;
an intermediate nozzle insert disposed around the inner nozzle insert,
the intermediate nozzle insert and the inner nozzle insert defining an intermediate flow channel; and
an outer nozzle insert disposed around the intermediate nozzle insert,
the outer nozzle insert and the intermediate nozzle insert defining an outer flow channel,
the intermediate nozzle insert and the inner nozzle insert cooperating to define an intermediate outlet,
at least one of the inner nozzle insert and the intermediate nozzle insert further defining at least one aperture disposed upstream from the intermediate outlet, at least one aperture being arranged to fluidly connect with at least one of the inner flow channel and the outer flow channel.