Evacuator assembly's method of use having selectively removable covers
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 18, 1994
Issued Date -
N/A
app pub date -
Feb 20, 1992
filing date -
May 30, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A device connectable to a suction source for drawing off particulate matter from the air about a burning site comprises a flexible hose provided along an end segment with a plurality of spaced apertures, the apertures being covered by punch-outs in the wall of the tube. A fastener serves to connect the hose at an end opposite the apertured end segment to the suction source, and a coupling element is provided for securing a free tip of the hose, at the free end of the apertured end segment, to the hose along a middle portion thereof to thereby form a loop including at least a portion of the apertured end segment. A selectable number of the punch-outs may be removed from the hose prior to a burning operation.
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Cited Art Landscape
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