Respirator air filter cartridge with a replaceable filter element
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 29, 1993
Grant Date -
N/A
app pub date -
Jul 11, 1991
filing date -
Jul 11, 1991
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A respirator cartridge having a housing, a replaceable filter and a cover is provided. The cartridge is sealed by a lip on the filter frame and sealing rings on the housing and cover. The cover is releasably connected to the housing by protuberances on the cover which slide along ramp-up lock devices on the housing when the cover is turned, compressing the filter frame and sealing the cartridge.
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