US 12,330,357 B2
Hot runner system
Ralf Schunck, Pfinztal (DE); and Kenneth Jacob, Tunkhannock, PA (US)
Assigned to MOLD-MASTERS (2007) LIMITED, Ontario (CA)
Filed by MOLD-MASTERS (2007) LIMITED, Ontario (CA)
Filed on Jun. 1, 2023, as Appl. No. 18/327,576.
Application 18/327,576 is a continuation of application No. PCT/US2021/061731, filed on Dec. 3, 2021.
Claims priority of provisional application 63/121,294, filed on Dec. 4, 2020.
Prior Publication US 2023/0321880 A1, Oct. 12, 2023
Int. Cl. B29C 43/20 (2006.01); B29C 45/27 (2006.01)
CPC B29C 45/2725 (2013.01) [B29C 45/2738 (2013.01); B29C 2045/2759 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A hot runner system comprising:
a manifold having a heater for maintaining the manifold at a suitable processing temperature and a manifold channel network extending between a manifold inlet and a plurality of manifold outlets, the manifold channel network for distributing a molten plastic from the manifold inlet to the plurality of manifold outlets;
a nozzle seated against the manifold and received in a respective manifold outlet, the nozzle having
an extension portion received in the respective manifold outlet and in conductive thermal communication with the manifold,
a body portion projecting downstream from the extension portion, and
a nozzle channel extending through the extension portion and the body portion; and
a nozzle support seated against the nozzle and in which the body portion of the nozzle is received, the nozzle support including an upstream nozzle support and a downstream nozzle support, the downstream nozzle support is discrete from and in slidable contact with the upstream nozzle support, and the downstream nozzle support having a looser fit with the body portion of the nozzle than that of the upstream nozzle support's fit with the body portion of the nozzle.