US 12,219,982 B2
Extrusion system
John Lawrence Hughes, Southampton (GB); Stephen Jeffrey Plas, Louisville, KY (US); Matthew Cottam, Alton (GB); Stephen Terence Frederick Lewis, Alresford (GB); and Paul Alan Robert Mortlock, Guildford (GB)
Assigned to Frazer-Nash Manufacturing Limited, Petersfield (GB)
Filed by Frazer-Nash Manufacturing Limited, Petersfield (GB)
Filed on Jul. 2, 2021, as Appl. No. 17/367,047.
Prior Publication US 2023/0000129 A1, Jan. 5, 2023
Int. Cl. B29C 48/00 (2019.01); A23P 30/20 (2016.01); B29C 48/255 (2019.01); B29C 48/68 (2019.01); B29C 48/80 (2019.01)
CPC A23P 30/20 (2016.08) [B29C 48/2552 (2019.02); B29C 48/681 (2019.02); B29C 48/80 (2019.02)] 16 Claims
OG exemplary drawing
 
1. An extrusion system comprising:
an extruder, operable to propel extrudate through an outlet thereof, during use; and
a valve, which comprises:
an inlet, fluidically connected to the extruder outlet, so as to receive extrudate therefrom, during use;
a main conduit extending from the inlet to a main outlet;
a dumping conduit, extending from a junction with the main conduit to a dumping outlet;
a flow control member, operable to move between:
a plurality of flow controlling positions, in which extrudate is directed to the main outlet, with the flow control member providing, for each flow controlling position, a respective amount of impedance to flow along the main conduit; and
a flow diverting position, in which extrudate is directed along the dumping conduit to the dumping outlet;
at least one seal for the flow control member; and
at least one port for receiving a fluid to flush the at least one seal.