US PATENT SUBCLASS 299 / 36.1
.~ Floor-working

Current as of: June, 1999
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299 /   HD   MINING OR IN SITU DISINTEGRATION OF HARD MATERIAL

29  DF  HARD MATERIAL DISINTEGRATING MACHINES {17}
36.1.~ Floor-working {3}
37.1  DF  .~.~> Reciprocating or oscillating cutter {2}
37.3  DF  .~.~> Impact or hammering type cutter {2}
39.1  DF  .~.~> Rotary cutter {6}

DEFINITION

Classification: 299/36.1

Floor-working:

(under subclass 29) Machine in which the cutter breaks up material on the bottom surface of the working location, as distinct from the side or end walls or top surface.

(1) Note. Floor working use must be specifically disclosed for classification under this definition.

(2) Note. These devices are generally of the type supported by wheels or the like on a surface and the driven tool works the material of the supporting surface.

(3) Note. This definition includes devices described as disintegrating linoleum or the like from floors as well as concrete or asphalt road surfaces.

(4) Note. A device supported by a vessel floating on a body of water and working material on the submerged floor is included under this definition.

SEE OR SEARCH THIS CLASS, SUBCLASS:

24+, for a device for working ice on the bottom surface of a working location.

SEE OR SEARCH CLASS 15, Brushing, Scrubbing, and General Cleaning,

78+, for a street sweeping machine, subclasses 93.1+ for a

scraping machine and subclasses 98+ for a floor and wall wiping machine.

172, Earth Working,

777+, for scraper type tools, subclasses 133+ for diverse tools, and subclasses 518+ for rolling, rotating, or orbitally moving tool that works on the surface of the earth.

404, Road Structure, Process or Apparatus,

90+, for cutting, scarifying or disintegrating the pavement plus structure; e.g., drag, tamper, roller, to level or smooth the cut road pieces.