Pump with air purging and self-cleaning features
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 9, 2000
Grant Date -
N/A
app pub date -
Jan 22, 1998
filing date -
Jan 22, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A pump installation used to maintain liquid level in a tank by pumping down liquid introduced into the tank with rotation of an impeller about a vertical axis features an air purging flow defined by axial openings through the pump impeller and an annular clearance space between the impeller drive and the pump housing cover, the space disposed above the impeller axial openings. A support sleeve surrounding the impeller drive and secured to the pump motor and tank top has openings at the bottom thereof which sets up a flushing liquid flow to eliminate solids forced up through the clearance space and into the sleeve interior.
First Claim
Family
International Classification(s)
- [Classification Symbol]
- [Patents Count]
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