HEATED/COOL SCREW CONVEYOR
First Claim
1. In a screw conveyor having a hollow screw shaft with an outer surface and an inner surface, a flight mounted to and extending outwardly from said outer surface over at least a portion of the length of said shaft, rotating structure mounted to said shaft for rotating said shaft, and thermal applicating structure for adjusting the temperature of said screw conveyor to a non-ambient temperature, the improvement being in that a thermosyphon is mounted in said shaft, and said thermosyphon including a hollow tube in contact with said inner surface of said shaft for transferring heat/cold by direct contact with said shaft.
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Accused Products
Abstract
A screw conveyor includes a hollow rotatable shaft having an externally mounted flight extending along a portion of its length. Thermal applicating structure is provided at one end of the shaft for heating or cooling the screw conveyor. A thermosyphon is mounted within the shaft. The thermosyphon includes a hollow tube mounted against and in direct surface to surface contact with the shaft to rotate co-jointly with the shaft.
69 Citations
23 Claims
- 1. In a screw conveyor having a hollow screw shaft with an outer surface and an inner surface, a flight mounted to and extending outwardly from said outer surface over at least a portion of the length of said shaft, rotating structure mounted to said shaft for rotating said shaft, and thermal applicating structure for adjusting the temperature of said screw conveyor to a non-ambient temperature, the improvement being in that a thermosyphon is mounted in said shaft, and said thermosyphon including a hollow tube in contact with said inner surface of said shaft for transferring heat/cold by direct contact with said shaft.
Specification