Gripping member for well tools or the like

Patent · Tue Apr 16 04:00:00 EDT 1974

OSTI ID:6731248

Fisher, Jr, E P; Abney, Jr, D L

The gripping member is described that includes a unitary body arranged to encircle a portion of the well tool and has upper and lower ends and a wall engaging portion located adjacent to the upper and lower ends. The wall engaging portions are disposed on relatively opposite sides of the unitary body. The gripping member is arranged to move on the well tool from a retracted position (1) wherein the wall-engaging portions are out of engagement with the wall and (2) a holding position wherein the wall-engaging portions are in engagement with the wall. Means, for example, a pair of bow springs, are disposed on the unitary body on opposite sides thereof and at a generally normal position relative to the location of the wall-engaging portions. The bow springs are arranged to extend into frictional engagement with the wall of the well bore to resist movement of the gripping member therethrough, so that other portions of the well tool can be moved relatively to the gripping member when desired. (6 claims)

• Assignee: Dresser Industries
• Patent Number(s): US 380416
• OSTI ID: 6731248
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420206* -- Engineering-- Mining & Drilling Equipment & Facilities-- (1980-1989)
DESIGN
RETRIEVAL SYSTEMS
TOOLS
WELL COMPLETION