US PATENT SUBCLASS 15 / 399
.~.~.~.~.~ With bristle bridle or air seal or shroud

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}
363  DF  .~.~ With mechanical agitating means {12}
393  DF  .~.~.~ Stationary agitator {6}
398  DF  .~.~.~.~ Bristle brush type {2}
399.~.~.~.~.~ With bristle bridle or air seal or shroud

DEFINITION

Classification: 15/399

(under subclass 398) Apparatus in which there is included means to prevent undue spreading of the bristles and/or to form an air seal or shroud to minimize or prevent air flow through the bristles except at or adjacent to the point of contact with the work.

SEE OR SEARCH THIS CLASS, SUBCLASS:

168+, for bristle bridles in cleaning implements having no

provisions for applying an air draft to the work.