US PATENT SUBCLASS 15 / 332
.~.~.~.~ With agitator and/or fan interlock, e.g., floor or rug safety feature

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}
328  DF  .~.~ Convertible {4}
331  DF  .~.~.~ Plural selective air draft means, e.g., on-floor to off-floor {2}
332.~.~.~.~ With agitator and/or fan interlock, e.g., floor or rug safety feature {1}
333  DF  .~.~.~.~.~> Floor nozzle elevating

DEFINITION

Classification: 15/332

(under subclass 331) Apparatus in which means are provided for interlocking or connecting an agitator and/or air pump with the means for converting so that conversion or selection acts to initiate, stop or alter the operation of the agitator or air pump.

(1) Note. In many patents in this and the indented subclass, the agitator is interlocked so as to preclude operation thereof in contact with the work except when a cleaning function including use of the agitator has been selected.

(2) Note. Where an air draft diverter only is interlocked so as to be controlled by conversion or selection, the patent is classified below on other than the interlock feature, such as on the diversion feature in subclasses 334+.

SEE OR SEARCH THIS CLASS, SUBCLASS:

334+, for cleaners wherein a diverter valve functions to divert the air flow from one to another air-draft applying means. See (2) Note.