Monoblock axial pump

Abstract

A pump device includes an axially rotating tube having an internal impeller affixed. Each opposite end of the tube has an inlet and outlet so that a powering means to axially engage the tube results in moving of a fluid. The supports or monoblocks at each end of the tube provide for sealing of the fluid passing through the tube and bearing support for the rotating tube. Quick pump disassembly and assembly and the feature of simple interchangeability of impeller types result in a variety of fluids to be pumped and fast and easy pump maintenance.

What is claimed: 
     
         1 . A pump comprising:
 the rotating tube having the internal impeller,   the monoblock supporting each end of the rotating tube,   the monoblock providing sealing and bearing surfaces with the rotating tube,   the monoblock providing connections for inlet or outlet tubing,   the monoblock secured to the pump base, and   the motor providing axial rotation of the tube.   
     
     
         2 . As defined in  claim 1 , wherein the preferred means to secure each monoblock is the pocket in the pump base having the slide-in fit maintaining the alignment of the rotating tube. 
     
     
         3 . As defined in  claim 1 , wherein the monoblock provides for pullout release and push-in insertion of the rotating tube. 
     
     
         4 . As defined in  claim 1 , wherein the monoblock having the rotary shaft seal pocket comprised of the path machined with the ball cutter to provide a round contour to fit and locate an o-ring to energize the radial seal for the rotating tube. 
     
     
         5 . As defined in  claim 1 , wherein the rotating tube wall having integral indentations to provide impeller vanes to provide the same effect as an impeller. 
     
     
         6 . As defined in  claim 1 , wherein the molded or cast metal or plastic axially rotating tube with tubing wall having integral indentations or vanes to provide the same effect as having a separate impeller. 
     
     
         7 . As defined in  claim 1 , wherein the rotating tube and impeller having the matching taper to provide the impeller to become fixed inside the rotating tube during pumping rotation. 
     
     
         8 . As defined in  claim 1 , wherein the monoblock integral bearing surface for the rotating tube is substituted with a bronze type bushing, ball or roller bearing. 
     
     
         9 . As defined in  claim 1 , wherein the monoblock integral seal for the rotating tube is substituted with a radial seal or mechanical seal. 
     
     
         10 . As defined in  claim 1 , wherein the monoblock is made from PTFE or UHMWPE. 
     
     
         11 . As defined in  claim 1 , wherein the rotating tube having grooves at or near the rotating tube bearing surfaces provides the impeller creating sealing action by controlling leaking of fluid by centrifugal force. 
     
     
         12 . (canceled) 
     
     
         13 . A pump component comprising the rotating tube providing the same effect as having a separate impeller thereby:
 the tube wall with integral indentations to provide impeller vanes or   the tube of molded or cast metal or plastic having integral indentations or vanes.   
     
     
         14 . (canceled) 
     
     
         15 . A pump component comprising the rotating tube having grooves at or near the rotating tube bearing surfaces provides the impeller creating sealing action by controlling leakage of fluid by centrifugal force.