US PATENT SUBCLASS 454 / 51
.~.~ Having air inlet separate from access opening

Current as of: June, 1999
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454 /   HD   VENTILATION

49  DF  WORKSTATION VENTILATOR (E.G., HOOD, OFFTAKE, ETC.) {5}
50  DF  .~ Spray booth {2}
51.~.~ Having air inlet separate from access opening {1}
52  DF  .~.~.~> Ceiling inlet

DEFINITION

Classification: 454/51

Having air inlet separate from access opening:

(under subclass 50) Subject matter comprising an inlet passage for admitting air to the task area which passage is distinct from an aperture allowing admittance to the area by personnel or by the object to be coated.

(1) Note. A mere doorway or window is not considered to be an inlet passage.

SEE OR SEARCH THIS CLASS, SUBCLASS:

57+, for a covered workbench chamber having an air inlet separate from an access opening.

66, for a workstation ventilator, in general, which has an inlet airway.