US PATENT SUBCLASS 169 / 50
.~.~ Acted upon by operator in use

Current as of: June, 1999
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169 /   HD   FIRE EXTINGUISHERS

48  DF  APPARATUS WHICH ISOLATES FLAMES FROM NON-BURNING AREA {1}
49  DF  .~ With means to isolate fire from atmosphere and extinguish {1}
50.~.~ Acted upon by operator in use

DEFINITION

Classification: 169/50

(under subclass 49) Apparatus, which separates the fire from the atmosphere upon manipulation of the means by an operator

to accomplish the isolation.

(1) Note. The manipulation includes rolling, dragging, wrapping, or beating.

(2) Note. This subclass includes extinguishers of the blanket type which conform to the shape of the object to be treated.