Centrifugal pump in particular for waste water or polluted water
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 16, 2018
Issued Date -
N/A
app pub date -
Dec 2, 2013
filing date -
Dec 5, 2012
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The invention relates to a centrifugal pump, in particular a waste water submersible pump having an impeller (1), of which the end face facing the pump intake opening is open and only the end face of the impeller facing away from the intake opening (8) is covered by a circular coaxial impeller hub (2), on which the curved vanes (3, 4) are fastened, and in particular molded on, wherein the base plate (7) having the intake opening (8) facing the impeller (1) or at least one segment (7a) of the base plate is mounted so as to be movable against spring pressure (20) in such a way that the distance thereof from the impeller (1) and thus from the impeller vanes (3, 4) changes.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2013 Application Filing Year
- F04D Class
- 1063 Applications Filed
- 941 Patents Issued To-Date
- 88.53 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 7 Citation Count
- F04D Class
- 30.09 % this patent is cited more than
- 7 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 | Jul 16, 2025 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jul 16, 2029 |
