Butterfly valves
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 24, 2017
Grant Date -
Jan 21, 2016
app pub date -
Sep 22, 2015
filing date -
Apr 3, 2013
priority date (Note) -
In Force
status (Latency Note)
Importance
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Abstract
A lightweight butterfly valve having a disk maintained in a fixed position on a compound shaft through an interlocking relation ship between each of the individual shafts of the compound shaft and the disk as the disk is moveable between an open or closed position with the butterfly valve may having other features such as an electric drive to quickly rotate the compound shaft to provide for rapid opening and closing the butterfly valve, a disk position indicator and a shaft stop to prevent the disk from being driven past a full open condition.
First Claim
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International Classification(s)
- 2015 Application Filing Year
- F16K Class
- 1801 Applications Filed
- 1435 Patents Issued To-Date
- 79.68 % 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 |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jul 24, 2028 |
