Abstract: A Helical Bearing Anchor and Catcher for the insertion into a well conduit to anchor well equipment in both linear directions and rotation in one direction. The device has a helical groove in either the mandrel or the drag body to accommodate the helical bearing. The helical bearing has holes within it to accommodate shear pins. The shear pins translate the linear motion from the helical bearing to the drag body. The drag body has a conical surface which contacts slips to drive them outward and grip the inner well conduit wall. Once the slip grips the inner well conduit wall the mandrel and the attached well equipment can not move linearly in either direction or rotate further in the setting direction within the well conduit. The anchor catcher can be unset by rotating the mandrel in the direction opposite to the setting direction. The drag body, pins, and helical bearing all move downward away from the slip.

Abstract: The present invention relates to a pump utilizing multiple tubes that are arranged helically and with the ends of the tubes oriented axially and not tangential to the drive shaft. Operation of the pump is achieved by rotation of the drive shaft. Rollers are positioned on the shaft such that the compressible tubes are compressed to the point where fluid cannot move within the tubes past the line of compression. The lines of compression move along the tubes by rotation of the shaft. Due to the helical arrangement of the tubes the lines of compression also move axially along the shaft. The fluid enters the tubes at the entrance portion of the tubes and is forced through the tubes due to the moving lines of compression and finally exit the tubes at the exit portion of the tubes. Continued rotation of the shaft causes continuous pumping of the fluid. This results in a very economical and compact pump for use in confined spaces or requiring axial flow. The multiple tubes also provide for a high rate of flow.