US PATENT SUBCLASS 454 / 36
.~.~.~ And spaced shield

Current as of: June, 1999
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454 /   HD   VENTILATION

1  DF  CHIMNEY OR STACK {6}
3  DF  .~ Chimneytop or stacktop structure (e.g., cowl) {12}
35  DF  .~.~ Spaced cap {2}
36.~.~.~ And spaced shield {1}
37  DF  .~.~.~.~> And skirt deflector extending outwardly from chimney or stack

DEFINITION

Classification: 454/36

And spaced shield:

(under subclass 35) Subject matter comprising a structure which surrounds, is located at a distance from, and which shelters an area immediately above the uppermost portion of the vertical conduit section.

(1) Note. The structure usually protects the uppermost portion of the conduit section from direct exposure to

natural air currents (i.e., wind).