US PATENT SUBCLASS 175 / 322
.~.~ Telescoping motion related to relative axial rotation or oscillation


Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use



175 /   HD   BORING OR PENETRATING THE EARTH

320  DF  WITH TOOL SHAFT DETAIL {4}
321  DF  .~ Axially telescoping shaft section {1}
322.~.~ Telescoping motion related to relative axial rotation or oscillation


DEFINITION

Classification: 175/322

(under subclass 321) Apparatus in which the sections of shafting include means acting between the sections so that the collapsing motion is accompanied by relative motion of the sections about the axis of the shafting (e.g., axial rotation or axial oscillation).

(1) Note. The axial motion may be specifically described as either (1) causing the collapsing or telescoping or (2) being

caused by the collapsing or telescoping of the sections for classification in this subclass.

SEE OR SEARCH THIS CLASS, SUBCLASS:

298, for devices having a below ground hammer or impact device in which continuous unidirectional rotary motion of one telescoping member effects the impacting.