Closed drain recovery system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 22, 2016
Grant Date -
Jan 29, 2015
app pub date -
Apr 27, 2012
filing date -
Mar 29, 2012
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
To achieve a downsized drain tank without reducing an effective drain recovery rate. A closed drain recovery system includes: a steam boiler (2); a closed-type drain tank (4); an air-open-type makeup water tank (7); a steam introduction line (10) for introducing a first flush steam within the drain tank (4) to the makeup water tank (7); a surplus drain introduction line (8) for introducing surplus drain to the makeup water tank (7) from the drain tank (4); and condensing units (33) and (39) provided for the makeup water tank (7), and configured to condense one or both of the first flush steam and a second flush steam by bringing the one or both of the first flush steam and the second flush steam into contact with the makeup water within the makeup water tank (7), the second flush steam being generated from the surplus drain.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2012 Application Filing Year
- F28B Class
- 26 Applications Filed
- 19 Patents Issued To-Date
- 73.08 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 1 Citation Count
- F28B Class
- 15.38 % this patent is cited more than
- 9 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | May 22, 2028 |
