Patent ID: 9745993
Date: 2017-08-29
CPC Classifications: F04D,Y10T

Claim:
1. Apparatus for an immersible pump, comprising: a shaft for communication with a motor, extending along an axis, and including a first region having a first diameter, a second region having a second diameter less than the first diameter, and a tapering region therebetween having a sloped surface relative to the axis; a sleeve having a bore extending through both ends configured to receive said shaft through said both ends; and a sealing device at least partially positioned between the shaft and the sleeve including: (a) a receiving area, including an inner surface angled relative to the axis, and having said sloped surface of said tapering region of said shaft positionable at least partially within said inner surface to form a seal between said sloped surface and said inner surface, and (b) an abutment configured to form a seal with said sleeve and responsive to a force directed from said sleeve to enhance said seal between said sloped surface and said inner surface.