Dump valve
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 23, 1981
Grant Date -
N/A
app pub date -
Oct 26, 1979
filing date -
Oct 26, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Loading Importance Indicators... 
Abstract
Disclosed is an apparatus for swabbing wells. A cup type swab and dump valve are carried on the same mandrel. The dump valve protects the apparatus from excessive fluid load and drag.
Loading the Abstract Image...
OK
First Claim
Family
Loading Family data...
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully