Thermoplastic melting kettle material circulation system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 13, 2018
Grant Date -
Oct 19, 2017
app pub date -
Feb 3, 2017
filing date -
Apr 14, 2016
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A molten thermoplastic circulation system that is used in conjunction with thermoplastic melter kettles. The molten circulation system includes a vertical material transfer tube that is coupled to a melter kettle and includes an auger. The vertical material transfer tube is coupled to the top and bottom of a melter kettle so as to transfer molten thermoplastic between the bottom and top of the melter kettle. The vertical material transfer tube is at least partially surrounded by a heat chamber through which a heated fluid such as hot combustion gases or heated oil can flow. In use molten thermoplastic material that is heated at a higher temperature at the bottom of a melter kettle near the combustion chamber is transferred through the vertical material transfer tube to the top of the melter kettle to improve melting efficiency.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2017 Application Filing Year
- F27D Class
- 249 Applications Filed
- 175 Patents Issued To-Date
- 70.29 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- F27D Class
- 0 % this patent is cited more than
- 7 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | May 13, 2026 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | May 13, 2030 |
