David Patrick O'Connor

US Patent:

6926087, Aug 9, 2005

Filed:

Oct 2, 2000

Appl. No.:

09/677729

Inventors:

Joseph A. Henke - Lewisville TX, US
David S. Wesson - Fort Worth TX, US
Phil Phelps - Fort Worth TX, US
David M. O'Connor - Aledo TX, US

Assignee:

Owen Oil Tools LP - Houston TX

International Classification:

E21B023/14

US Classification:

166382, 166 552, 166 664, 166217

Abstract:

An electro-mechanical wireline assembly as shown for anchoring a wireline tool string in place during a wellbore under balanced well conditions. The assembly includes an upper connection for connection to the wireline leading to the well surface and a lower connector for engaging a wireline tool. An outer mandrel is attached to the lower connector. An inner mandrel is carried at least partly within the outer mandrel and is capable of axial movement within the outer mandrel. A slip gripping assembly is carried on the outer mandrel and includes slips which are normally biased radially inward but which can be moved radially outward for engaging a surrounding wellbore and holding the wireline tool string in place. An electric motor assembly is carried on the wireline assembly between the upper and lower connectors. The electric motor assembly is actuable by an electric current supplied from the well surface through the wireline to effect axial movement of the inner mandrel relative to the outer mandrel to expand the gripping slips in a radial direction between a start position and a set position.

US Patent:

41388208, Feb 13, 1979

Filed:

Nov 16, 1976

Appl. No.:

5/742512

Inventors:

David O'Connor - Warwick NY

International Classification:

G01B 334

US Classification:

33168R

Abstract:

A metric gauge including a planar body having formed therein a plurality of varying sized sockets suitable for measuring wrench size, screw size, and nut size. A scale with offset index shoulder is also provided to measure bolt and screw length. Each of the sockets is hexagonally or otherwise formed at the planar body to receive a bolt head or nut therein to precisely measure wrench size. A seat or shoulder for the bolt head or nut is formed below the planar surface at each socket to rest the bolt head or the nut thereon when sizing. Each of the sockets is downwardly formed to a hollow cylindrical configuration of a varying diameters for bolt diameter measuring purposes. Each socket terminates downwardly in a cylindrical bottom of known outside diameter to receive thereon a nut for gauging the nut diameter. The scale edge of the planar surface is impressed with a plurality of graduations which may be in millimeters or inches which extend from the index shoulder.