Davis-standard Corporation

Norton Wheeler

John P Christiano

Thomas J Oravits

John Radovich

Jason Baird

Frederick C Suppon

A heater-cooler system includes a plurality of heaters in thermal communication with a barrel of an extruder. The heater-cooler system includes a plurality of shroud assemblies that each define a cavity between a shroud assemblies and one of the heaters. Each heater is enclosed by one of the shroud assemblies. Each of the shroud assemblies has an intake port and an exhaust port. The heater-cooler system includes a blower connected to the intake port. The blower delivers air to the cavity. A portion of the each of the shroud assemblies at the exhaust port defines a flap moveably integrated therewith. The flap is opened by an increase in pressure in the cavity caused by operation of the blower. The flap seals the cavity in a closed position upon termination of blower operation. The flap is configured as a poppet valve.

Heater-cooler system for a barrel of an extruder and a method of using the same

A heater-cooler system includes a plurality of heaters in thermal communication with a barrel of an extruder. The heater-cooler system includes a plurality of shroud assemblies that each define a cavity between a shroud assemblies and one of the heaters. Each heater is enclosed by one of the shroud assemblies. Each of the shroud assemblies has an intake port and an exhaust port. The heater-cooler system includes a blower connected to the intake port. The blower delivers air to the cavity. A portion of the each of the shroud assemblies at the exhaust port defines a flap moveably integrated therewith. The flap is opened by an increase in pressure in the cavity caused by operation of the blower. The flap seals the cavity in a closed position upon termination of blower operation.

Growing community of inventors

Mystic, CT, United States of America

Norton Wheeler