US PATENT SUBCLASS 414 / 22.71
.~.~.~ Both upper and lower pipe or rod holding and guiding means

Current as of: June, 1999
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414 /   HD   MATERIAL OR ARTICLE HANDLING

22.51  DF  WELL PIPE OR ROD RACKING MECHANISM {3}
22.63  DF  .~ Vertical rack {3}
22.68  DF  .~.~ With laterally guided pipe or rod support {2}
22.71.~.~.~ Both upper and lower pipe or rod holding and guiding means

DEFINITION

Classification: 414/22.71

Both upper and lower pipe or rod holding and guiding means:

(under subclass 22.68) Apparatus including a first means for grippingly engaging, supporting and moving the cylindrical member at one location along the axis of the cylindrical member and a second means for grippingly engaging and moving the cylindrical member at a different location therealong.