Apparatus and method for controlled drying of plastic pellets
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 30, 1996
Grant Date -
N/A
app pub date -
Nov 14, 1994
filing date -
Nov 14, 1994
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Apparatus and a method for the controlled drying of polymer plastic pellets within a dryer hopper are provided. A sensor tree having a plurality of temperature sensors spaced vertically on the tree is positioned vertically within the dryer hopper so that the individual sensors are each located at varying vertical distances from the bottom to the top of the dryer hopper. A target temperature for a particular type of polymer plastic pellet, when maintained for a specified residence time, indicates that the pellet is thoroughly dry for use in a manufacturing process. By determining the vertical level at which the target temperature has been achieved for the desired residence time, the amount of dry material within the hopper that is ready to be input to the manufacturing process is determined. A signal processing unit operating a software program automatically controls the throughput of the dryer hopper so that only dry polymer plastic pellets leave the hopper.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully