Patent ID: 11933112
Assignee: GEODYNAMICS, INC.
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 0:
1. A centralizing device configured to centralize/decentralize an associated tool in a well, the centralizing device comprising:
a body that extends along a longitudinal axis, the body having a bore that extends from one end to another end of the body;
a first piston shaped as a cylinder and provided around a central portion of the body;
a second piston shaped as a cylinder and provided around the central portion of the body;
a bridge provided around the central portion of the body, between the first and second pistons; and
a pair of arms, each arm being attached with one end to a corresponding one of the first and second pistons and with another end to each other,
wherein the second piston, the bridge, and the central portion of the body define a first sealed chamber containing a gas that exerts a pressure tending to separate the first piston and the second piston.