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U.S. Department of Energy
Office of Scientific and Technical Information

Manipulator for hollow objects

Patent ·
OSTI ID:862764
A device for gripping the interior of a tubular object to pull it out of a body in which it has become stuck includes an expandable rubber tube having a plurality of metal cables lodged in the exterior of the rubber tube so as to protrude slightly therefrom, means for inflating the tube and means for pulling the tube longitudinally of the tubular object.
Research Organization:
Pacific Northwest National Laboratory (PNNL), Richland, WA
DOE Contract Number:
AT(45-1)-1350
Assignee:
United States of America as represented by United States Energy (Washington, DC)
Patent Number(s):
US 4006930
OSTI ID:
862764
Country of Publication:
United States
Language:
English