US PATENT SUBCLASS 175 / 89
TOOL ELEMENT OR CONTINUOUSLY DRIVEN FLEXIBLE OR ARTICULATED ENDLESS MEMBER


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

89TOOL ELEMENT OR CONTINUOUSLY DRIVEN FLEXIBLE OR ARTICULATED ENDLESS MEMBER {1}
90  DF  .~> Flexible or articulated member carried on support swingable or laterally movable relative to bore axis


DEFINITION

Classification: 175/89

(under the class definition) Apparatus in which a cutting means is carried through recurring cycles on a driven member forming a closed circuit, said member composed of a rope, cable, chain, hinged elements, or like structure.

(1) Note. This subclass does not include apparatus in which the support for the flexible or articulated endless member is adapted to be moved laterally relative to the bore axis as the cutter cuts unless the lateral movement of said support takes place entirely below ground. Compare Classes 37, 172 and 299 for apparatus for forming a ditch, furrow or kerf.

(2) Note. The cutting means may consist of teeth or digging buckets.

SEE OR SEARCH THIS CLASS, SUBCLASS:

88, for conveyor means to move cuttings transversely of bore axis.

172, for a tool drive means combined with an endless flexible conveyor for transporting cuttings. 338, for rolling cutter bit or element with endless carrier.

SEE OR SEARCH CLASS

37, Excavating,

353+, and 462+ for ditchers or excavators.

172, Earth Working,

95+, 100 and 542 for a rotary separating digger and a tooth or blade on an endless carrier.

299, Mining or In Situ Disintegration of Hard Material,

29+, for a mining machine having a chain type cutter head, and subclasses 82.1+ for a chain type cutter head.