US PATENT SUBCLASS 454 / 217
.~.~.~ Having adjustable angle or swingable mounting

Current as of: June, 1999
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454 /   HD   VENTILATION

196  DF  MEANS COMBINED WITH WINDOW {12}
214  DF  .~ Having air passage between sill and bottom of sash {5}
216  DF  .~.~ Including wall for upwardly deflecting inlet air {3}
217.~.~.~ Having adjustable angle or swingable mounting {1}
218  DF  .~.~.~.~> Including collapsible or flexible, perpendicular side wall

DEFINITION

Classification: 454/217

Having adjustable angle or swingable mounting:

(under subclass 216) Subject matter comprising a supporting means for the air guiding surface which (1) facilitates changing inclination of the guiding surface relative to the window or (2) permits arcuate movement of the guiding surface.

(1) Note. A device wherein the inclination is changeable so

as to slope downward from the window is not included in this subclass.

SEE OR SEARCH THIS CLASS, SUBCLASS:

215, for an air guiding surface combined with a window which surface is changeable so as to slope downward from the window.