Sealing device for filters
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United States of America Patent
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-
May 24, 1994
Grant Date -
N/A
app pub date -
Nov 3, 1993
filing date -
Nov 3, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A device for sealing a clearance between a ceiling frame and a filter frame placed on the ceiling frame. The ceiling frame includes closed tubes and has an upper wall formed with holes for holding the interior of the ceiling frame in communication with a groove formed in the bottom face of the filter frame. The interior of the ceiling frame is given a negative pressure by suction.
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