US PATENT SUBCLASS 414 / 22.64
.~.~ Compensating for support shift (e.g., ship roll, etc.)

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}
22.64.~.~ Compensating for support shift (e.g., ship roll, etc.)

DEFINITION

Classification: 414/22.64

Compensating for support shift (e.g.,., ship roll, etc.):

(under subclass 22.63) Apparatus including provision to maintain support of the cylindrical member in a vertical direction in spite of movement of the surface on which the apparatus is supported.

(1) Note. Included herein is apparatus to compensate for the movement of a ship under wave or tide action, or a device to compensate for vibration or earth tremor.