Apparatus for downward displacement of an inner tube within a co

Boring or penetrating the earth – With means movable relative to tool to receive – retain – or... – Core-retaining or severing means

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

175268, E21B 1060, E21B 1064

Patent

active

046037497

ABSTRACT:
Downward displacement of an inner tube with respect to the outer tube in a coring tool is effectuated by an apparatus comprising a bearing assembly, a cylinder, a piston telescopically disposed within the cylinder, and a mechanism for selectively applying an hydraulic force to the piston. The bearing assembly is longitudinally fixed with respect to the outer tube while providing rotational freedom with respect to the outer tube. A cylinder is axially disposed within the coring tool, is connected to the bearing assembly, and hence is rotationally free with respect to the outer tube. The piston, which is telescopically disposed within a cylinder, is downwardly longitudinally displaceable within the cylinder, and hence with respect to the outer tube. A mechanism is incorporated within the coring tool for selectively applying a hydraulic force to the piston in order to longitudinally displace the piston downwardly within the cylinder. The inner tube, being coupled to the piston, is thus downwardly displaced within the coring tool.

REFERENCES:
patent: 366913 (1887-07-01), Ball
patent: 650686 (1900-05-01), Leask
patent: 1643338 (1927-09-01), Halvorsen
patent: 2038791 (1936-04-01), Howard et al.
patent: 2038793 (1936-04-01), Howard et al.
patent: 2221392 (1940-11-01), Baker
patent: 3339647 (1967-09-01), Kammerer, Jr.
patent: 3554305 (1971-01-01), Kammerer, Jr.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Apparatus for downward displacement of an inner tube within a co does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus for downward displacement of an inner tube within a co, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for downward displacement of an inner tube within a co will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-964521

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.