Steam valve and steam turbine
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 3, 2017
Grant Date -
Apr 21, 2016
app pub date -
Feb 19, 2014
filing date -
Feb 19, 2014
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A steam valve includes a valve body having a valve seat in a steam channel, a valve stem configured to close the steam channel by coming in contact with the valve seat and to open the steam channel by moving from the valve seat and a guide portion configured to slidably guide the valve stem in a moving direction thereof. The guide portion has a guide body that encloses the valve stem from a radial outer side of the valve stem and a guide bush that is detachably fixed inside the guide body, has an inner surface which abuts and slides on an outer circumferential surface of the valve stem, and is formed of a material having corrosion resistance.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2014 Application Filing Year
- F16K Class
- 1571 Applications Filed
- 1342 Patents Issued To-Date
- 85.43 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- F16K Class
- 0 % this patent is cited more than
- 8 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 | Apr 3, 2025 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Apr 3, 2029 |
