US PATENT SUBCLASS 15 / 422.1
.~.~.~ Width changes along transverse dimension

Current as of: June, 1999
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15 /   HD   BRUSHING, SCRUBBING, AND GENERAL CLEANING

3  DF  MACHINES {11}
300.1  DF  .~ With air blast or suction {26}
415.1  DF  .~.~ Nozzle {7}
422.1.~.~.~ Width changes along transverse dimension

DEFINITION

Classification: 15/422.1

Width changes along transverse dimension:

(under subclass 415.1) Subject matter wherein one of the dimensions of the nozzle opening is greater than its other dimensions and wherein the dimension of the opening perpendicular to the greater dimension varies over the extent of the greater dimension.

(1) Note. The width of the nozzle opening varies along its length.