Pump for pumping liquid as well as impeller assembly
Number of patents in Portfolio can not be more than 2000
United States of America
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-
Feb 1, 2022
Grant Date -
May 23, 2019
app pub date -
May 10, 2017
filing date -
May 10, 2017
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A pump for pumping a liquid, includes an impeller and an axially extending drive shaft assembly, wherein a distal end of the drive shaft assembly is received in a central recess of the impeller. The drive shaft assembly includes a drive shaft and a connector. The connector includes a sleeve that is in telescopic engagement with the drive shaft. During operation of the pump the impeller is displaceable in the axial direction in relation to the sleeve between a distal rest position and a proximal position. The impeller is biased towards the distal rest position by a spring member arranged between the sleeve and the impeller. The connector includes a hollow adjustment screw that is in threaded engagement with an interior side of the sleeve to limit the maximum degree of telescopic overlap between the sleeve and the drive shaft.
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