Valve device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 15, 2019
Grant Date -
Feb 1, 2018
app pub date -
Mar 24, 2016
filing date -
Apr 6, 2015
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A valve device includes: a valve having a ball surface having a convex spherical shape, and a first opening opened in the ball surface to allow fluid to pass through; and a seat having an annular shape and opposing the ball surface to be in sliding contact, the seat being pressed against the ball surface, the seat having a second opening to communicate with the first opening. The seat has a sealing surface in a sliding contact with the ball surface at a valve closed time when the ball surface and the second opening overlap with each other, and a seat contact surface in a sliding contact with an opening inner wall surface or an opening end surface of the first opening at a valve opened time when the first opening and the second opening overlap with each other.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2016 Application Filing Year
- F16K Class
- 2031 Applications Filed
- 1519 Patents Issued To-Date
- 74.80 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 1 Citation Count
- F16K Class
- 51.93 % this patent is cited more than
- 6 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 15, 2027 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Apr 15, 2031 |
