Underground mine personnel doors
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 28, 1999
Grant Date -
N/A
app pub date -
May 5, 1997
filing date -
May 5, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A mine door for use in underground mining includes a door panel hingedly mounted to a door frame. A substantially noncombustible seal member is interposed between the door frame and the door panel and is preferably comprised of a flexible outer sleeve housing a resilient metal mesh core. The door panel is latched to the door frame by a latching device that ensures that the seal member is maintained in a substantially compressed condition.
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Family
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