Patents Examined by Victor Taylor
  • Patent number: 6021091
    Abstract: Ocean bottom seismic cables are subject to rolling motions due to seismic wave fields and current action which cause poor receiver ground-coupling and signal distortion, particularly along the cross-line and vertical axes. Two multi-axial receivers are mounted on opposite sides of the cable in a single cluster. When the cable rolls, the axial response of one receiver of the cluster cancels the axial response of the other receiver of that cluster.
    Type: Grant
    Filed: January 20, 1999
    Date of Patent: February 1, 2000
    Assignee: Western Altas International, Inc.
    Inventor: James E. Gaiser