US PATENT SUBCLASS 175 / 189
.~ Drive reciprocates tool

Current as of: June, 1999
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175 /   HD   BORING OR PENETRATING THE EARTH

170  DF  WITH TOOL DRIVE PRIME MOVER OR ABOVE-GROUND MECHANICAL MOTION CONVERTING DRIVE MEANS {5}
189.~ Drive reciprocates tool

DEFINITION

Classification: 175/189

(under subclass 170) Apparatus in which the tool drive comprises a means to cause substantially rectilinear to and from movement of the tool.

SEE OR SEARCH THIS CLASS, SUBCLASS:

135, for means to reciprocate a means to impact an earth penetrating means.

SEE OR SEARCH CLASS

60, Power Plants,

369+, and 537+ for pulsators adapted to reciprocate a tool.

74, Machine Element or Mechanism, appropriate subclasses, and particularly 20, 62 for reciprocation type mechanical movements.

91, Motors: Expansible Chamber Type, appropriate subclass for an expansible chamber type motor adapted to reciprocate a tool.

310, Electrical Generator or Motor Structure,

15+, for reciprocating electric motors.

418, Rotary Expansible Chamber Devices, appropriate subclasses for a rotary expansible chamber motor adapted to reciprocate a tool.