E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
255/26, 255/38
E21B 17/22 (2006.01) E21B 17/046 (2006.01) F16L 21/06 (2006.01)
Patent
CA 1312854
ABSTRACT OF THE DISCLOSURE The present invention comprises first and second auger sections having upper and lower ends. The lower end of the first auger section is detachably secured to the upper end of the second auger section. The lower end of the first auger section includes a collar having axially extending indentations and projections therein. The upper end of the second auger section includes a similar collar having axially extending projections and indentations therein. The two collars are matingly interlocked to prevent rotation of the augers sections with respect to one another. A detachable coupler surrounds the interlocked first and second collar means and holds them against axial movement away from one another. A seal causes the two ends to be sealed with respect to one another so that fluid cannot enter the internal bore of the tube sections. One modified form of the invention comprises using laser cut slots which extend axially in the tube of the auger section so as to permit fluid to enter the internal bore of the auger section.
589696
Pengo Acquisition Corp.
Ridout & Maybee Llp
LandOfFree
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