Methods and systems for detecting the presence of a gas in a pump and preventing a gas from being pumped from a pump
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 16, 2001
Grant Date -
N/A
app pub date -
Jul 20, 1999
filing date -
Jul 20, 1999
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A method and system are disclosed for detecting the presence of a gas in a pump chamber of a pumping system. The methods, and systems employing the methods, involve isolating a pump chamber from its surroundings, for example by closing an inlet and outlet valve on lines to and from the chamber, and determining the volume of the pump chamber with a force applied to a moveable or flexible surface of the pump chamber. The volume of the pump chamber is then redetermined in a similar fashion but with a second, different level of force applied to the surface of the pump chamber. The volumes thus determined can then be compared to detect the presence of a gas in the pump chamber.
First Claim
Family
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